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  1. Green's functions and existence of solutions of nonlinear fractional implicit difference equations with Dirichlet boundary conditions

    Article • Opuscula Mathematica, January 2024, AGHU University of Science and Technology Press

    Professor Alberto Cabada

  2. Existence of solutions of nonlinear systems subject to arbitrary linear non-local boundary conditions

    Article • Journal of Fixed Point Theory and Applications, October 2023, Springer Science + Business Media

    Professor Alberto Cabada

  3. Implicit Caputo fractional q-difference equations with non instantaneous impulses

    Article • Differential Equations & Applications, January 2023, Element d.o.o.

    Professor Alberto Cabada

  4. Existence of Positive Solutions of Nonlinear Second Order Dirichlet Problems Perturbed by Integral Boundary Conditions

    Article • October 2022, Springer Science + Business Media

    Professor Alberto Cabada

  5. Existence of solutions of discrete fractional problem coupled to mixed fractional boundary conditions

    Article • Revista de la Real Academia de Ciencias Exactas Físicas y Naturales Serie A Matemáticas, September 2022, Springer Science + Business Media

    Professor Alberto Cabada

  6. Existence of solutions of a second order equation defined on unbounded intervals with integral conditions on the boundary

    Article • Malaya Journal of Matematik, June 2022, Malaya Journal of Matematik

    Professor Alberto Cabada

  7. Constant-Sign Green’s Function of a Second-Order Perturbed Periodic Problem

    Article • Axioms, March 2022, MDPI AG

    Professor Alberto Cabada

  8. Constant Sign Solutions of Nonlinear Boundary Value Problems Modeled by Ordinary and Partial Differential Equations

    Article • Oriental Journal of Physical Sciences, February 2022, Oriental Scientific Publishing Company

    Professor Alberto Cabada

  9. Spectral characterization of the constant sign Green's functions for periodic and Neumann boundary value problems of even order

    Article • Differential Equations & Applications, January 2022, Element d.o.o.

    Professor Alberto Cabada

  10. Green’s functions for fractional difference equations with Dirichlet boundary conditions

    Article • Chaos Solitons & Fractals, December 2021, Elsevier

    Professor Alberto Cabada

  11. Green’s Function Related to a n-th Order Linear Differential Equation Coupled to Arbitrary Linear Non-Local Boundary Conditions

    Article • Mathematics, August 2021, MDPI AG

    Professor Alberto Cabada

  12. Lyapunov-type inequality for higher order left and right fractional p-Laplacian problems

    Article • Proyecciones (Antofagasta), August 2021, Universidad Catolica del Norte - Chile

    Professor Alberto Cabada

  13. Nonlinear differential equations with perturbed Dirichlet integral boundary conditions

    Article • Boundary Value Problems, July 2021, Springer Science + Business Media

    Professor Alberto Cabada

  14. Existence and uniqueness of positive solutions for nonlinear fractional mixed problems

    Article • Georgian Mathematical Journal, July 2021, De Gruyter

    Professor Alberto Cabada

  15. Non-Trivial Solutions of Non-Autonomous Nabla Fractional Difference Boundary Value Problems

    Article • Symmetry, June 2021, MDPI AG

    Professor Alberto Cabada

  16. Positive solutions for fractional boundary value problems with integral boundary conditions and parameter dependence

    Article • Computational and Applied Mathematics, June 2021, Springer Science + Business Media

    Professor Alberto Cabada

  17. Extremal solutions of nonlinear functional discontinuous fractional equations

    Article • Computational and Applied Mathematics, February 2021, Springer Science + Business Media

    Professor Alberto Cabada

  18. Third-order differential equations with three-point boundary conditions

    Article • Open Mathematics, January 2021, De Gruyter

    Professor Alberto Cabada

  19. Nontrivial solutions of non-autonomous dirichlet fractional discrete problems

    Article • Fractional Calculus and Applied Analysis, August 2020, De Gruyter

    Professor Alberto Cabada

  20. On the Existence of Eigenvalues of a Boundary Value Problem with Transmitting Condition of the Integral Form for a Parabolic-Hyperbolic Equation

    Article • Mathematics, June 2020, MDPI AG

    Professor Alberto Cabada

  21. Initial Value Problem For Nonlinear Fractional Differential Equations With ψ-Caputo Derivative Via Monotone Iterative Technique

    Article • Axioms, May 2020, MDPI AG

    Professor Alberto Cabada

  22. Existence of Solutions of Integral Equations Defined in Unbounded Domains Via Spectral Theory

    Article • Mediterranean Journal of Mathematics, February 2020, Springer Science + Business Media

    Professor Alberto Cabada

  23. Existence Results for Nonlinear Fractional Problems with Non-Homogeneous Integral Boundary Conditions

    Article • Mathematics, February 2020, MDPI AG

    Professor Alberto Cabada

  24. Existence results for a clamped beam equation with integral boundary conditions

    Article • Electronic journal of qualitative theory of differential equations, January 2020, University of Szeged

    Professor Alberto Cabada

  25. Multiplicity results for fourth order problems related to the theory of deformations beams

    Article • Discrete and Continuous Dynamical Systems - B, January 2020, American Institute of Mathematical Sciences (AIMS)

    Professor Alberto Cabada

  26. Existence of Solutions of nth-Order Nonlinear Difference Equations with General Boundary Conditions

    Article • Acta Mathematica Scientia, December 2019, Springer Science + Business Media

    Professor Alberto Cabada

  27. Nontrivial solutions of inverse discrete problems with sign-changing nonlinearities

    Article • Advances in Difference Equations, October 2019, Springer Science + Business Media

    Professor Alberto Cabada

  28. Lower and Upper Solutions for Even Order Boundary Value Problems

    Article • Mathematics, September 2019, MDPI AG

    Professor Alberto Cabada

  29. Existence of Solutions of Nonlinear and Non-local Fractional Boundary Value Problems

    Article • Mediterranean Journal of Mathematics, August 2019, Springer Science + Business Media

    Professor Alberto Cabada

  30. An alternative explicit expression of the kernel of the one dimensional heat equation with Dirichlet conditions

    Article • Applied Mathematics Letters, March 2019, Elsevier

    Professor Alberto Cabada

  31. Homoclinic solutions for fractional Hamiltonian systems via variational method

    Article • January 2019, American Institute of Physics

    Professor Alberto Cabada

  32. Existence results for systems of conformable fractional differential equations

    Article • Archivum Mathematicum, January 2019, Masaryk University Press

    Professor Alberto Cabada

  33. Relationship Between Green’s Functions for Even Order Linear Boundary Value Problems

    Article • January 2019, Springer Science + Business Media

    Professor Alberto Cabada

  34. Results for Fractional Differential Equations with Integral Boundary Conditions Involving the Hadamard Derivative

    Article • January 2019, Springer Science + Business Media

    Professor Alberto Cabada

  35. Existence of solutions for conformable fractional problems with nonlinear functional boundary conditions

    Article • Malaya Journal of Matematik, January 2019, Malaya Journal of Matematik

    Professor Alberto Cabada

  36. A variational approach to perturbed impulsive fractional differential equations

    Article • Journal of Computational and Applied Mathematics, October 2018, Elsevier

    Professor Alberto Cabada

  37. Existence of solutions for nth-order nonlinear differential boundary value problems by means of fixed point theorems

    Article • Nonlinear Analysis Real World Applications, August 2018, Elsevier

    Professor Alberto Cabada

  38. Existence of solutions of integral equations with asymptotic conditions

    Article • Nonlinear Analysis Real World Applications, August 2018, Elsevier

    Professor Alberto Cabada

  39. Positive homoclinic solutions of n-th order difference equations with sign-changing Green's function

    Article • Mathematical Methods in the Applied Sciences, April 2018, Wiley

    Professor Alberto Cabada

  40. FCAA related news, events and books (FCAA–volume 21–1–2018)

    Article • Fractional Calculus and Applied Analysis, February 2018, De Gruyter

    Prof. Virginia S. Kiryakova, Prof. Roberto Garrappa, Professor Alberto Cabada, Francesco Paolo Pinnola

  41. Nonlinear perturbed integral equations related to nonlocal boundary value problems

    Article • Fixed Point Theory, February 2018, Babes-Bolyai University

    Professor Alberto Cabada

  42. Preface

    Article • January 2018, Elsevier

    Professor Alberto Cabada

  43. Acknowledgment

    Article • January 2018, Elsevier

    Professor Alberto Cabada

  44. Introduction

    Article • January 2018, Elsevier

    Professor Alberto Cabada

  45. Existence of positive periodic solutions of some nonlinear fractional differential equations

    Article • Communications in Nonlinear Science and Numerical Simulation, September 2017, Elsevier

    Professor Alberto Cabada

  46. On linear differential equations and systems with reflection

    Article • Applied Mathematics and Computation, July 2017, Elsevier

    Professor Alberto Cabada

  47. Existence of solutions of nonlocal perturbations of dirichlet discrete nonlinear problems

    Article • Acta Mathematica Scientia, July 2017, Elsevier

    Professor Alberto Cabada

  48. On the smoothness of solutions of the third order nonlinear differential equation

    Article • Boundary Value Problems, May 2017, Springer Science + Business Media

    Professor Alberto Cabada

  49. Characterization of non-disconjugacy for a one parameter family of

    Article • Applied Mathematics Letters, March 2017, Elsevier

    Professor Alberto Cabada

  50. Existence results for nonlinear fractional Dirichlet problems on the right side of the first eigenvalue

    Article • Georgian Mathematical Journal, January 2017, De Gruyter

    Professor Alberto Cabada

  51. Constant sign solution for a simply supported beam equation

    Article • Electronic journal of qualitative theory of differential equations, January 2017, University of Szeged

    Professor Alberto Cabada

  52. Green’s functions and spectral theory for the Hill’s equation

    Article • Applied Mathematics and Computation, August 2016, Elsevier

    Professor Alberto Cabada

  53. Green’s Functions for Reducible Functional Differential Equations

    Article • Bulletin of the Malaysian Mathematical Sciences Society, April 2016, Springer Science + Business Media

    Professor Alberto Cabada

  54. Periodic solutions for some phi-Laplacian and reflection equations

    Article • Boundary Value Problems, February 2016, Springer Science + Business Media

    Professor Alberto Cabada

  55. The eigenvalue characterization for the constant sign Green’s functions of ( k , n − k ) $(k,n-k)$ problems

    Article • Boundary Value Problems, February 2016, Springer Science + Business Media

    Professor Alberto Cabada

  56. Disconjugacy characterization by means of spectral

    Article • Applied Mathematics Letters, February 2016, Elsevier

    Professor Alberto Cabada

  57. Nonzero solutions of perturbed Hammerstein integral equations with deviated arguments and applications

    Article • Topological Methods in Nonlinear Analysis, January 2016, Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University

    Professor Alberto Cabada

  58. Operator Method for Construction of Solutions of Linear Fractional Differential Equations with Constant Coefficients

    Article • Fractional Calculus and Applied Analysis, January 2016, De Gruyter

    Professor Alberto Cabada

  59. The existence of a positive solution for nonlinear fractional differential equations with integral boundary value conditions

    Article • Mathematical Methods in the Applied Sciences, January 2016, Wiley

    Professor Alberto Cabada

  60. On solvability of some boundary value problem for polyharmonic equation with boundary operator of a fractional order

    Article • Applied Mathematical Modelling, August 2015, Elsevier

    Professor Alberto Cabada

  61. Constant sign solutions of two-point fourth order problems

    Article • Applied Mathematics and Computation, July 2015, Elsevier

    Professor Alberto Cabada

  62. Existence results for singular φ-Laplacian problems in presence of lower and upper solutions

    Article • Analysis and Applications, March 2015, World Scientific Pub Co Pte Lt

    Professor Alberto Cabada

  63. Multiplicity Results for Integral Boundary Value Problems of Fractional Order with Parametric Dependence

    Article • Fractional Calculus and Applied Analysis, January 2015, De Gruyter

    Professor Alberto Cabada

  64. Differential Equations with Involutions

    Article • January 2015

    Professor Alberto Cabada

  65. Involutions and Differential Equations

    Article • January 2015, Atlantis Press

    Professor Alberto Cabada

  66. General Results for Differential Equations with Involutions

    Article • January 2015, Atlantis Press

    Professor Alberto Cabada

  67. Order One Problems with Constant Coefficients

    Article • January 2015, Atlantis Press

    Professor Alberto Cabada

  68. The Non-constant Case

    Article • January 2015, Atlantis Press

    Professor Alberto Cabada

  69. General Linear Equations

    Article • January 2015, Atlantis Press

    Professor Alberto Cabada

  70. A Cone Approximation to a Problem with Reflection

    Article • January 2015, Atlantis Press

    Professor Alberto Cabada

  71. A generalization of an extensible beam equation with critical growth in

    Article • Nonlinear Analysis Real World Applications, December 2014, Elsevier

    Professor Alberto Cabada

  72. A positive fixed point theorem with applications to systems of Hammerstein integral equations

    Article • Boundary Value Problems, December 2014, Springer Science + Business Media

    Professor Alberto Cabada

  73. On solvability of a boundary value problem for a nonhomogeneous biharmonic equation with a boundary operator of a fractional order

    Article • Acta Mathematica Scientia, November 2014, Elsevier

    Professor Alberto Cabada

  74. Construction of

    Article • Applied Mathematics and Computation, October 2014, Elsevier

    Professor Alberto Cabada

  75. Existence results for a linear equation with reflection, non-constant coefficient and periodic boundary conditions

    Article • Journal of Mathematical Analysis and Applications, April 2014, Elsevier

    Professor Alberto Cabada

  76. An integral boundary value problem for nonlinear differential equations of fractional order on an unbounded domain

    Article • Journal of Integral Equations and Applications, March 2014, Rocky Mountain Mathematics Consortium

    Professor Alberto Cabada

  77. Nonlinear fractional differential equations with integral boundary value conditions

    Article • Applied Mathematics and Computation, February 2014, Elsevier

    Professor Alberto Cabada

  78. Existence and multiplicity of solutions to boundary value problems for fourth-order impulsive differential equations

    Article • Boundary Value Problems, January 2014, Springer Science + Business Media

    Professor Alberto Cabada

  79. Solutions and Green’s function of the first order linear equation with reflection and initial conditions

    Article • Boundary Value Problems, January 2014, Springer Science + Business Media

    Professor Alberto Cabada

  80. Green’s Functions in the Theory of Ordinary Differential Equations

    Article • January 2014, Springer Science + Business Media

    Professor Alberto Cabada

  81. Green’s Functions in the Theory of Ordinary Differential Equations

    Article • November 2013, Springer Science + Business Media

    Professor Alberto Cabada

  82. Existence of homoclinic constant sign solutions for a difference equation on the integers

    Article • Applied Mathematics and Computation, November 2013, Elsevier

    Professor Alberto Cabada

  83. Extremal solutions to fourth order discontinuous functional boundary value problems

    Article • Mathematische Nachrichten, September 2013, Wiley

    Professor Alberto Cabada, Feliz Minhós

  84. Comparison results for first order linear operators with reflection and periodic boundary value conditions

    Article • Nonlinear Analysis, February 2013, Elsevier

    Professor Alberto Cabada

  85. On the Volterra property of a boundary problem with integral gluing condition for a mixed parabolic-hyperbolic equation

    Article • Boundary Value Problems, January 2013, Springer Science + Business Media

    Dr Erkinjon Karimov, Professor Alberto Cabada

  86. Multiplicity of solutions of a two point boundary value problem for a fourth-order equation

    Article • Applied Mathematics and Computation, January 2013, Elsevier

    Professor Alberto Cabada

  87. New criteria for the existence of non-trivial fixed points in cones

    Article • Fixed Point Theory and Applications, January 2013, Springer Science + Business Media

    Professor Alberto Cabada

  88. Nontrivial solutions of Hammerstein integral equations with reflections

    Article • Boundary Value Problems, January 2013, Springer Science + Business Media

    Professor Alberto Cabada

  89. Preface

    Article • Boundary Value Problems, January 2013, Springer Science + Business Media

    Professor Alberto Cabada

  90. Computation of Green’s functions for boundary value problems with Mathematica

    Article • Applied Mathematics and Computation, November 2012, Elsevier

    Professor Alberto Cabada

  91. Functional fractional boundary value problems with singular -Laplacian

    Article • Applied Mathematics and Computation, November 2012, Elsevier

    Professor Alberto Cabada

  92. Existence results and the monotone iterative technique for systems of nonlinear fractional differential equations

    Article • Applied Mathematics Letters, June 2012, Elsevier

    Professor Alberto Cabada

  93. Heteroclinic solutions of a second-order difference equation related to the Fisher–Kolmogorov’s equation

    Article • Applied Mathematics and Computation, May 2012, Elsevier

    Professor Alberto Cabada

  94. Positive solutions of nonlinear fractional differential equations with integral boundary value conditions

    Article • Journal of Mathematical Analysis and Applications, May 2012, Elsevier

    Professor Alberto Cabada

  95. On comparison principles for the periodic Hill's equation

    Article • Journal of the London Mathematical Society, April 2012, Oxford University Press (OUP)

    Professor Alberto Cabada

  96. On a non-local boundary problem for a parabolic–hyperbolic equation involving a Riemann–Liouville fractional differential operator

    Article • Nonlinear Analysis, April 2012, Elsevier

    Professor Alberto Cabada, Dr Erkinjon Karimov

  97. A note on a question of Ricceri

    Article • Applied Mathematics Letters, February 2012, Elsevier

    Professor Alberto Cabada

  98. Existence of Solutions of a Nonlocal Elliptic System via Galerkin Method

    Article • Abstract and Applied Analysis, January 2012, Hindawi Publishing Corporation

    Professor Alberto Cabada

  99. Partial neutral functional integro-differential equations of fractional order with delay

    Article • Boundary Value Problems, January 2012, Springer Science + Business Media

    Professor Alberto Cabada

  100. Nonlinear second-order equations with functional implicit impulses and nonlinear functional boundary conditions

    Article • Nonlinear Analysis, December 2011, Elsevier

    Professor Alberto Cabada

  101. The Samarskii–Ionkin type problem for the fourth order parabolic equation with fractional differential operator

    Article • Computers & Mathematics with Applications, November 2011, Elsevier

    Professor Alberto Cabada

  102. Existence of heteroclinic solutions for discrete -Laplacian problems with a parameter

    Article • Nonlinear Analysis Real World Applications, August 2011, Elsevier

    Professor Alberto Cabada

  103. First order differential equations with piecewise constant arguments and nonlinear boundary value conditions

    Article • Journal of Mathematical Analysis and Applications, August 2011, Elsevier

    Professor Alberto Cabada

  104. On a class of singular Sturm–Liouville periodic boundary value problems

    Article • Nonlinear Analysis Real World Applications, August 2011, Elsevier

    Professor Alberto Cabada

  105. Positive solutions of fourth order problems with clamped beam boundary conditions

    Article • Nonlinear Analysis, July 2011, Elsevier

    Professor Alberto Cabada

  106. Existence of positive solutions fornth-order periodic difference equations

    Article • The Journal of Difference Equations and Applications, June 2011, Taylor & Francis

    Professor Alberto Cabada

  107. An Overview of the Lower and Upper Solutions Method with Nonlinear Boundary Value Conditions

    Article • Boundary Value Problems, January 2011, Springer Science + Business Media

    Professor Alberto Cabada

  108. Existence and Multiplicity of Solutions for a Periodic Hill's Equation with Parametric Dependence and Singularities

    Article • Abstract and Applied Analysis, January 2011, Hindawi Publishing Corporation

    Professor Alberto Cabada

  109. Existence of Solutions for Elliptic Systems with Nonlocal Terms in One Dimension

    Article • Boundary Value Problems, January 2011, Springer Science + Business Media

    Professor Alberto Cabada

  110. Existence of Solutions for Elliptic Systems with Nonlocal Terms in One Dimension

    Article • Boundary Value Problems, January 2011, Springer Science + Business Media

    Professor Alberto Cabada

  111. Preface

    Article • January 2011, American Institute of Physics

    Professor Ivailo M. Mladenov, Professor Alberto Cabada

  112. Multiplicity results for nonlinear periodic fourth order difference equations with parameter dependence and singularities

    Article • Journal of Mathematical Analysis and Applications, November 2010, Elsevier

    Professor Alberto Cabada

  113. Integration of the Toda lattice with an integral-type source

    Article • Inverse Problems, June 2010, Institute of Physics Publishing

    Professor Alberto Cabada

  114. A generalized anti-maximum principle for the periodic one-dimensional -Laplacian with sign-changing potential

    Article • Nonlinear Analysis, April 2010, Elsevier

    Professor Alberto Cabada, Milan Tvrdy

  115. On Homoclinic Solutions of a Semilinear p-Laplacian Difference Equation with Periodic Coefficients

    Article • Advances in Difference Equations, January 2010, Springer Science + Business Media

    Professor Alberto Cabada

  116. On Homoclinic Solutions of a Semilinear -Laplacian Difference Equation with Periodic Coefficients

    Article • Advances in Difference Equations, January 2010, Springer Science + Business Media

    Professor Alberto Cabada

  117. Existence of a non-zero fixed point for nondecreasing operators proved via Krasnoselskii’s fixed point theorem

    Article • Nonlinear Analysis, September 2009, Elsevier

    Professor Alberto Cabada

  118. Extremal solutions to fourth-order functional boundary value problems including multipoint conditions

    Article • Nonlinear Analysis Real World Applications, August 2009, Elsevier

    Professor Alberto Cabada, Feliz Minhós

  119. Multiple solutions for discrete boundary value problems

    Article • Journal of Mathematical Analysis and Applications, August 2009, Elsevier

    Professor Alberto Cabada

  120. An Existence Result for Nonlinear Fractional Differential Equations on Banach Spaces

    Article • Boundary Value Problems, January 2009, Springer Science + Business Media

    Professor Alberto Cabada

  121. Boundary Value Problems on Time Scales

    Article • Advances in Difference Equations, January 2009, Springer Science + Business Media

    Professor Alberto Cabada

  122. On the sign of the Green’s function associated to Hill’s equation with an indefinite potential

    Article • Applied Mathematics and Computation, November 2008, Elsevier

    Professor Alberto Cabada

  123. Second order problems with functional conditions including Sturm-Liouville and multipoint conditions

    Article • Mathematische Nachrichten, September 2008, Wiley

    Professor Alberto Cabada

  124. Fully nonlinear fourth-order equations with functional boundary conditions

    Article • Journal of Mathematical Analysis and Applications, April 2008, Elsevier

    Professor Alberto Cabada, Feliz Minhós

  125. Positivity and lower and upper solutions for fourth order boundary value problems

    Article • Nonlinear Analysis, September 2007, Elsevier

    Professor Alberto Cabada

  126. Extremal solutions for nonlinear functional -Laplacian impulsive equations

    Article • Nonlinear Analysis, August 2007, Elsevier

    Professor Alberto Cabada

  127. EXISTENCE OF A SOLUTION FOR A SINGULAR DIFFERENTIAL EQUATION WITH NONLINEAR FUNCTIONAL BOUNDARY CONDITIONS

    Article • Glasgow Mathematical Journal, May 2007, Cambridge University Press

    Professor Alberto Cabada

  128. Existence results for discontinuous functional differential systems

    Article • Applied Mathematics and Computation, May 2007, Elsevier

    Professor Alberto Cabada

  129. Nonlinear second-order equations with functional implicit impulses and nonlinear functional boundary conditions

    Article • Journal of Mathematical Analysis and Applications, April 2007, Elsevier

    Professor Alberto Cabada

  130. Periodic Problem Involving Quasilinear Differential Operator and Weak Singularity

    Article • Advanced Nonlinear Studies, January 2007, De Gruyter

    Professor Alberto Cabada, Milan Tvrdy

  131. Solvability for a third order discontinuous fully equation with nonlinear functional boundary conditions

    Article • Journal of Mathematical Analysis and Applications, October 2006, Elsevier

    Professor Alberto Cabada, Feliz Minhós

  132. Solvability of discontinuous functional differential systems in l∞(M)

    Article • The ANZIAM Journal, October 2006, Cambridge University Press

    Professor Alberto Cabada

  133. Third-order right-focal multi-point problems on time scales

    Article • The Journal of Difference Equations and Applications, September 2006, Taylor & Francis

    Professor Alberto Cabada

  134. First order difference equations with maxima and nonlinear functional boundary value conditions

    Article • The Journal of Difference Equations and Applications, June 2006, Taylor & Francis

    Professor Alberto Cabada

  135. Existence results for φ-Laplacian boundary value problems on time scales

    Article • Advances in Difference Equations, January 2006, Springer Science + Business Media

    Professor Alberto Cabada

  136. Expression of the Lebesgue

    Article • Mathematical and Computer Modelling, January 2006, Elsevier

    Professor Alberto Cabada

  137. Existence of solutions of first-order dynamic equations with nonlinear functional boundary value conditions

    Article • Nonlinear Analysis, November 2005, Elsevier

    Professor Alberto Cabada

  138. Extremal solutions of -Laplacian–diffusion scalar problems with nonlinear functional boundary conditions in a unified way

    Article • Nonlinear Analysis, November 2005, Elsevier

    Professor Alberto Cabada

  139. Criterions for absolute continuity on time scales

    Article • The Journal of Difference Equations and Applications, September 2005, Taylor & Francis

    Professor Alberto Cabada

  140. Extremal solutions for third-order nonlinear problems with upper and lower solutions in reversed order

    Article • Nonlinear Analysis, September 2005, Elsevier

    Professor Alberto Cabada, Feliz Minhós

  141. Optimal conditions to ensure the stability of periodic solutions of first order difference equations lying between lower and upper solutions

    Article • Journal of Computational and Applied Mathematics, April 2005, Elsevier

    Professor Alberto Cabada

  142. Nagumo type existence results for second-order nonlinear dynamic BVPS

    Article • Nonlinear Analysis, January 2005, Elsevier

    Professor Alberto Cabada

  143. Stability of periodic solutions of first-order difference equations lying between lower and upper solutions

    Article • Advances in Difference Equations, January 2005, Springer Science + Business Media

    Professor Alberto Cabada

  144. Existence of solutions of third-order functional problems with nonlinear boundary conditions

    Article • The ANZIAM Journal, July 2004, Cambridge University Press

    Professor Alberto Cabada

  145. Difference phi-Laplacian Periodic Boundary Value Problems

    Article • June 2004, Taylor & Francis

    Professor Alberto Cabada

  146. Green's function and comparison principles for first order periodic differential equations with piecewise constant arguments

    Article • Journal of Mathematical Analysis and Applications, March 2004, Elsevier

    Professor Alberto Cabada

  147. A note on fixed-points theorems for T-monotone operators

    Article • Computers & Mathematics with Applications, March 2004, Elsevier

    Professor Alberto Cabada

  148. Extremal solutions and Green's functions of higher order periodic boundary value problems in time scales

    Article • Journal of Mathematical Analysis and Applications, February 2004, Elsevier

    Professor Alberto Cabada

  149. Existence and uniqueness of solutions of higher-order antiperiodic dynamic equations

    Article • Advances in Difference Equations, January 2004, Springer Science + Business Media

    Professor Alberto Cabada

  150. An Exact Formula for the Number of Alignments Between Two DNA Sequences

    Article • DNA Sequence, December 2003, Taylor & Francis

    Professor Alberto Cabada

  151. Criteria for Existence and Nonexistence of Positive Solutions to a Discrete Periodic Boundary Value Problem

    Article • The Journal of Difference Equations and Applications, September 2003, Taylor & Francis

    Professor Alberto Cabada

  152. On the solvability of some discontinuous third order nonlinear differential equations with two point boundary conditions

    Article • Journal of Mathematical Analysis and Applications, September 2003, Elsevier

    Professor Alberto Cabada, Feliz Minhós

  153. Extremality and comparison results for discontinuous implicit third order functional initial-boundary value problems

    Article • Applied Mathematics and Computation, August 2003, Elsevier

    Professor Alberto Cabada

  154. Article • Proceedings of the American Mathematical Society, July 2003, American Mathematical Society (AMS)

    Professor Alberto Cabada

  155. Positive solutions for a class of implicit and discontinuous second order functional differential equations with singularities

    Article • Applied Mathematics and Computation, May 2003, Elsevier

    Professor Alberto Cabada

  156. Existence and uniqueness results for discrete second-order periodic boundary value problems

    Article • Computers & Mathematics with Applications, March 2003, Elsevier

    Professor Alberto Cabada

  157. Fixed sign solutions of second-order difference equations with Neumann boundary conditions

    Article • Computers & Mathematics with Applications, March 2003, Elsevier

    Professor Alberto Cabada

  158. Existence theory for functional p-Laplacian equations with variable exponents

    Article • Nonlinear Analysis, January 2003, Elsevier

    Professor Alberto Cabada

  159. Maximum and anti-maximum principles for the general operator of second order with variable coefficients

    Article • Applied Mathematics and Computation, January 2003, Elsevier

    Professor Alberto Cabada

  160. Existence results and approximation methods for functional ordinary differential equations with singular diffusion-type differential operators

    Article • Computers & Mathematics with Applications, July 2002, Elsevier

    Professor Alberto Cabada

  161. Implicit nonlinear discontinuous functional boundary value ϕ-Laplacian problems: extremality results

    Article • Applied Mathematics and Computation, July 2002, Elsevier

    Professor Alberto Cabada

  162. Extremality results for discontinuous explicit and implicit diffusion problems

    Article • Journal of Computational and Applied Mathematics, June 2002, Elsevier

    Professor Alberto Cabada

  163. Existence and Comparison Results for Difference φ-Laplacian Boundary Value Problems with Lower and Upper Solutions in Reverse Order

    Article • Journal of Mathematical Analysis and Applications, March 2002, Elsevier

    Professor Alberto Cabada

  164. Existence and Comparison Results for First Order Periodic Implicit Difference Equations with Maxima

    Article • The Journal of Difference Equations and Applications, January 2002, Taylor & Francis

    Professor Alberto Cabada

  165. Comparison results for n-th order periodic difference equations

    Article • Nonlinear Analysis, August 2001, Elsevier

    Professor Alberto Cabada

  166. Extremal solutions for the difference φ-Laplacian problem with nonlinear functional boundary conditions

    Article • Computers & Mathematics with Applications, August 2001, Elsevier

    Professor Alberto Cabada

  167. Extremality and Comparison Results for Discontinuous Third Order Functional Initial-Boundary Value Problems

    Article • Journal of Mathematical Analysis and Applications, March 2001, Elsevier

    Professor Alberto Cabada

  168. Uniqueness, comparison, and existence results for third-order initial boundary value problems

    Article • Computers & Mathematics with Applications, March 2001, Elsevier

    Professor Alberto Cabada

  169. Monotone method for the Neumann problem with lower and upper solutions in the reverse order

    Article • Applied Mathematics and Computation, January 2001, Elsevier

    Professor Alberto Cabada

  170. Quasilinearization and Rate of Convergence for Higher-Order Nonlinear Periodic Boundary-Value Problems

    Article • Journal of Optimization Theory and Applications, January 2001, Springer Science + Business Media

    Professor Alberto Cabada

  171. On the Method of Upper and Lower Solutions for First Order BVPs

    Article • January 2001, Springer Science + Business Media

    Professor Alberto Cabada

  172. Extremal solutions of strongly nonlinear discontinuous second-order equations with nonlinear functional boundary conditions

    Article • Nonlinear Analysis, December 2000, Elsevier

    Professor Alberto Cabada

  173. Lower and upper solutions for the periodic problem associated with a ϕ – Laplacian equation

    Article • September 2000, World Scientific Pub Co Pte Lt

    Professor Alberto Cabada

  174. Optimal Existence Conditions for φ-Laplacian Equations with Upper and Lower Solutions in the Reversed Order

    Article • Journal of Differential Equations, September 2000, Elsevier

    Professor Alberto Cabada

  175. A generalization of the method of upper and lower solutions for discontinuous first order problems with nonlinear boundary conditions

    Article • Applied Mathematics and Computation, September 2000, Elsevier

    Professor Alberto Cabada

  176. Optimal Existence Results for nth Order Periodic Boundary Value Difference Equations

    Article • Journal of Mathematical Analysis and Applications, July 2000, Elsevier

    Professor Alberto Cabada

  177. Green's Function and Maximum Principle for Higher Order Ordinary Differential Equations with Impulses

    Article • Rocky Mountain Journal of Mathematics, June 2000, Rocky Mountain Mathematics Consortium

    Professor Alberto Cabada

  178. Fixed points and approximate solutions for nonlinear operator equations

    Article • Journal of Computational and Applied Mathematics, January 2000, Elsevier

    Professor Alberto Cabada

  179. Existence and approximation of solutions for first-order discontinuous difference equations with nonlinear global conditions in the presence of lower and upper solutions

    Article • Computers & Mathematics with Applications, January 2000, Elsevier

    Professor Alberto Cabada

  180. Existence of solution for discontinuous third order boundary value problems

    Article • Journal of Computational and Applied Mathematics, October 1999, Elsevier

    Professor Alberto Cabada

  181. Approximate solutions to a new class of nonlinear diffusion problems

    Article • Journal of Computational and Applied Mathematics, August 1999, Elsevier

    Professor Alberto Cabada

  182. Existence results for nonlinear problems with separated boundary conditions

    Article • Nonlinear Analysis, February 1999, Elsevier

    Professor Alberto Cabada

  183. Existence results for the problem (φ(u′))′=f(t,u,u′) with nonlinear boundary conditions

    Article • Nonlinear Analysis, January 1999, Elsevier

    Professor Alberto Cabada

  184. Boundary value problems for higher order ordinary differential equations with impulses

    Article • Nonlinear Analysis, June 1998, Elsevier

    Professor Alberto Cabada

  185. Rapid convergence of approximate solutions for first order nonlinear boundary value problems

    Article • International Journal of Mathematics and Mathematical Sciences, January 1998, Hindawi Publishing Corporation

    Professor Alberto Cabada

  186. Existence result for the problem (φ(u′))′ = f(t, u, u′) with periodic and Neumann boundary conditions

    Article • Nonlinear Analysis, December 1997, Elsevier

    Professor Alberto Cabada

  187. Rapid convergence of the iterative technique for first order initial value problems

    Article • Applied Mathematics and Computation, December 1997, Elsevier

    Professor Alberto Cabada

  188. Discontinuous impulsive differential equations with nonlinear boundary conditions

    Article • Nonlinear Analysis, May 1997, Elsevier

    Professor Alberto Cabada

  189. Maximum principles for fourth and sixth order periodic boundary value problems

    Article • Nonlinear Analysis, January 1997, Elsevier

    Professor Alberto Cabada

  190. A Positive Operator Approach to the Neumann Problem for a Second Order Ordinary Differential Equation

    Article • Journal of Mathematical Analysis and Applications, December 1996, Elsevier

    Professor Alberto Cabada

  191. The Method of Lower and Upper Solutions for Third-Order Periodic Boundary Value Problems

    Article • Journal of Mathematical Analysis and Applications, October 1995, Elsevier

    Professor Alberto Cabada

  192. Erratum Remarks on the monotone method for first-order problems with linear and nonlinear boundary conditions

    Article • Applied Mathematics and Computation, May 1995, Elsevier

    Professor Alberto Cabada

  193. The Method of Lower and Upper Solutions for Second, Third, Fourth, and Higher Order Boundary Value Problems

    Article • Journal of Mathematical Analysis and Applications, July 1994, Elsevier

    Professor Alberto Cabada

  194. The monotone method for first-order problems with linear and nonlinear boundary conditions

    Article • Applied Mathematics and Computation, July 1994, Elsevier

    Professor Alberto Cabada

  195. The method of lower and upper solutions fornth-order periodic boundary value problems

    Article • Journal of Applied Mathematics and Stochastic Analysis, January 1994, Hindawi Publishing Corporation

    Professor Alberto Cabada

  196. A generalized upper and lower solutions method for nonlinear second order ordinary differential equations

    Article • Journal of Applied Mathematics and Stochastic Analysis, January 1992, Hindawi Publishing Corporation

    Professor Alberto Cabada

  197. Extremal solutions of second order nonlinear periodic boundary value problems

    Article • Applied Mathematics and Computation, November 1990, Elsevier

    Professor Alberto Cabada

  198. A generalization of the monotone iterative technique for nonlinear second order periodic boundary value problems

    Article • Journal of Mathematical Analysis and Applications, September 1990, Elsevier

    Professor Alberto Cabada

  199. The monotone method for third order boundary value problems

    Article • De Gruyter

    Professor Alberto Cabada