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  1. Boolean algebras as a tool to implement and analyze hypercompositional structures

    Article • Applied Mathematics and Computation, May 2026, Elsevier

    Assoc.prof.dr. Irina Cristea

  2. Preface to the Special Issue “Algebraic Structures and Graph Theory, 2nd Edition”

    Article • Mathematics, February 2025, MDPI AG

    Assoc.prof.dr. Irina Cristea

  3. Preface to the Special Issue “State-of-the-Art Mathematical Applications in Europe”

    Article • Mathematics, July 2024, MDPI AG

    Assoc.prof.dr. Irina Cristea

  4. Hyperideal-based zero-divisor graph of the general hyperring $ \mathbb{Z}_{n} $

    Article • AIMS Mathematics, January 2024, American Institute of Mathematical Sciences (AIMS)

    Assoc.prof.dr. Irina Cristea

  5. From HX-Groups to HX-Polygroups

    Article • Axioms, December 2023, MDPI AG

    Assoc.prof.dr. Irina Cristea

  6. Preface to the Special Issue “Algebraic Structures and Graph Theory”

    Article • Mathematics, July 2023, MDPI AG

    Assoc.prof.dr. Irina Cristea

  7. New Aspects in the Theory of Complete Hypergroups

    Article • April 2023, MDPI AG

    Assoc.prof.dr. Irina Cristea

  8. Dependence Relations and Grade Fuzzy Set

    Article • Symmetry, January 2023, MDPI AG

    Assoc.prof.dr. Irina Cristea

  9. Euler's totient function applied to complete hypergroups

    Article • AIMS Mathematics, January 2023, Tsinghua University Press

    Assoc.prof.dr. Irina Cristea

  10. Special Issue on Symmetry in Classical and Fuzzy Algebraic Hypercompositional Structures

    Article • Symmetry, October 2022, MDPI AG

    Assoc.prof.dr. Irina Cristea

  11. Supplements Related to Normal π-Projective Hypermodules

    Article • Mathematics, June 2022, MDPI AG

    Assoc.prof.dr. Irina Cristea

  12. Divisible hypermodules

    Article • Analele ştiinţifice ale Universităţii "Ovidius" Constanţa Seria Matematică, February 2022, De Gruyter

    Assoc.prof.dr. Irina Cristea

  13. Knots and Knot-Hyperpaths in Hypergraphs

    Article • Mathematics, January 2022, MDPI AG

    Assoc.prof.dr. Irina Cristea

  14. Regular local hyperrings and hyperdomains

    Article • AIMS Mathematics, January 2022, Tsinghua University Press

    Assoc.prof.dr. Irina Cristea

  15. Composition Vector Spaces as a New Type of Tri-Operational Algebras

    Article • Mathematics, September 2021, MDPI AG

    Assoc.prof.dr. Irina Cristea

  16. The Reducibility Concept in General Hyperrings

    Article • Mathematics, August 2021, MDPI AG

    Assoc.prof.dr. Irina Cristea

  17. Links Between HX-Groups and Hypergroups

    Article • Algebra Colloquium, July 2021, World Scientific Pub Co Pte Lt

    Assoc.prof.dr. Irina Cristea

  18. About the Normal Projectivity and Injectivity of Krasner Hypermodules

    Article • Axioms, May 2021, MDPI AG

    Assoc.prof.dr. Irina Cristea

  19. Regular Parameter Elements and Regular Local Hyperrings

    Article • Mathematics, January 2021, MDPI AG

    Assoc.prof.dr. Irina Cristea

  20. The Class Equation and the Commutativity Degree for Complete Hypergroups

    Article • Mathematics, December 2020, MDPI AG

    Assoc.prof.dr. Irina Cristea

  21. On Factorizable Semihypergroups

    Article • Mathematics, July 2020, MDPI AG

    Assoc.prof.dr. Irina Cristea

  22. A Comparison of Complete Parts on m-Idempotent Hyperrings

    Article • Symmetry, April 2020, MDPI AG

    Assoc.prof.dr. Irina Cristea

  23. The commutative quotient structure of m-idempotent hyperrings

    Article • Analele ştiinţifice ale Universităţii "Ovidius" Constanţa Seria Matematică, March 2020, De Gruyter

    Assoc.prof.dr. Irina Cristea, Dr. Morteza Norouzi

  24. Fuzzy Reduced Hypergroups

    Article • Mathematics, February 2020, MDPI AG

    Assoc.prof.dr. Irina Cristea

  25. Hyperhomographies on Krasner Hyperfields

    Article • Symmetry, November 2019, MDPI AG

    Assoc.prof.dr. Irina Cristea

  26. Introduction to Dependence Relations and Their Links to Algebraic Hyperstructures

    Article • Mathematics, September 2019, MDPI AG

    Prof. Jus Kocijan, Assoc.prof.dr. Irina Cristea

  27. The non-commuting graph of a non-central hypergroup

    Article • Open Mathematics, September 2019, De Gruyter

    Assoc.prof.dr. Irina Cristea

  28. Weak Embeddable Hypernear-Rings

    Article • Symmetry, August 2019, MDPI AG

    Assoc.prof.dr. Irina Cristea

  29. Introducing E-learning to a Traditional University: A Case-Study

    Article • June 2019, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  30. A fuzzy application of the group $$\mathbb {Z}_n$$ to complete hypergroups

    Article • Soft Computing, June 2019, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  31. Extension of elliptic curves on Krasner hyperfields

    Article • Communications in Algebra, April 2019, Taylor & Francis

    Assoc.prof.dr. Irina Cristea

  32. Breakable Semihypergroups

    Article • Symmetry, January 2019, MDPI AG

    Assoc.prof.dr. Irina Cristea

  33. A note on the support of a hypermodule

    Article • Journal of Algebra and Its Applications, December 2018, World Scientific Pub Co Pte Lt

    Assoc.prof.dr. Irina Cristea

  34. Division hypernear-rings

    Article • Analele ştiinţifice ale Universităţii "Ovidius" Constanţa Seria Matematică, December 2018, De Gruyter

    Assoc.prof.dr. Irina Cristea

  35. Cyclicity in EL–Hypergroups

    Article • Symmetry, November 2018, MDPI AG

    Assoc.prof.dr. Irina Cristea

  36. The E-learning System for Teaching Bridging Mathematics Course to Applied Degree Studies

    Article • October 2018, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  37. Hyperrings with n-ary composition hyperoperation

    Article • Journal of Algebra and Its Applications, January 2018, World Scientific Pub Co Pte Lt

    Assoc.prof.dr. Irina Cristea

  38. Transitivity of the εm -relation on (m-idempotent) hyperrings

    Article • Open Mathematics, January 2018, De Gruyter

    Assoc.prof.dr. Irina Cristea, Dr. Morteza Norouzi

  39. 1st Symposium on “Hypercompositional Algebra – New Developments and Applications (HAnDA)”

    Article • January 2018, American Institute of Physics

    Assoc.prof.dr. Irina Cristea

  40. A note on near-rings and hypernear-rings with a defect of distributivity

    Article • January 2018, American Institute of Physics

    Assoc.prof.dr. Irina Cristea

  41. How to define tensor products of hypermodules

    Article • January 2018, American Institute of Physics

    Assoc.prof.dr. Irina Cristea

  42. Hypernear-rings with a defect of distributivity

    Article • Filomat, January 2018, National Library of Serbia

    Assoc.prof.dr. Irina Cristea

  43. Fundamental relation on m-idempotent hyperrings

    Article • Open Mathematics, December 2017, De Gruyter

    Dr. Morteza Norouzi, Assoc.prof.dr. Irina Cristea

  44. Composition in EL-hyperstructures

    Article • Hacettepe Journal of Mathematics and Statistics, October 2017, Hacettepe Journal of Biology and Chemistry

    Assoc.prof.dr. Irina Cristea

  45. A new type of fuzzy subsemihypermodules

    Article • Journal of Intelligent & Fuzzy Systems Applications in Engineering and Technology, February 2017, IOS Press

    Assoc.prof.dr. Irina Cristea, Dr. Morteza Norouzi

  46. A note on composition (m, n)-hyperrings

    Article • Analele ştiinţifice ale Universităţii "Ovidius" Constanţa Seria Matematică, January 2017, De Gruyter

    Assoc.prof.dr. Irina Cristea, Dr. Morteza Norouzi

  47. Height of prime hyperideals in Krasner hyperrings

    Article • Filomat, January 2017, National Library of Serbia

    Assoc.prof.dr. Irina Cristea

  48. HOW TO USE THE ORDINARY MATHEMATICAL MODELS IN THE MILITARY FIELD

    Article • Scientific Bulletin of Naval Academy, December 2016, Mircea cel Batran Naval Academy

    Assoc.prof.dr. Irina Cristea

  49. On Complementable Semihypergroups

    Article • Communications in Algebra, March 2016, Taylor & Francis

    Assoc.prof.dr. Irina Cristea

  50. On dihedral hypergroups

    Article • European Journal of Combinatorics, February 2015, Elsevier

    Assoc.prof.dr. Irina Cristea

  51. Atanassov s intuitionistic fuzzy grade of complete hypergroups of order less than or equal to 6

    Article • Hacettepe Journal of Mathematics and Statistics, January 2015, Hacettepe Journal of Mathematics and Statistics

    Assoc.prof.dr. Irina Cristea

  52. Fuzzy Algebraic Hyperstructures

    Article • January 2015, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  53. Special intuitionistic fuzzy subhypergroups of complete hypergroups

    Article • Journal of Intelligent & Fuzzy Systems Applications in Engineering and Technology, January 2015, IOS Press

    Assoc.prof.dr. Irina Cristea

  54. Connections between Hypergroups and Fuzzy Sets

    Article • January 2015, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  55. Fundamentals of Algebraic (Hyper)Structures

    Article • January 2015, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  56. Fuzzy H v -Subgroups of H v -Groups

    Article • January 2015, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  57. Fuzzy Polygroups

    Article • January 2015, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  58. H v -Rings (Hyperrings) and H v -Ideals

    Article • January 2015, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  59. Regularity of Intuitionistic Fuzzy Relations on Hypergroupoids

    Article • Analele ştiinţifice ale Universităţii "Ovidius" Constanţa Seria Matematică, December 2014, De Gruyter

    Assoc.prof.dr. Irina Cristea

  60. Characterizations of fuzzy soft Γ-hemirings

    Article • Journal of Intelligent & Fuzzy Systems Applications in Engineering and Technology, January 2014, IOS Press

    Assoc.prof.dr. Irina Cristea

  61. Composition hyperrings

    Article • Analele ştiinţifice ale Universităţii "Ovidius" Constanţa Seria Matematică, June 2013, De Gruyter

    Assoc.prof.dr. Irina Cristea

  62. Intuitionistic Fuzzy Preference Relations and Hypergroups

    Article • January 2013, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  63. Lower and upper fuzzy topological subhypergroups

    Article • Acta Mathematica Sinica English Series, July 2012, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  64. On fuzzy preordered structures and (Fuzzy) hyperstructures

    Article • Acta Mathematica Sinica English Series, January 2012, Springer Science + Business Media

    Assoc.prof.dr. Irina Cristea

  65. About the fundamental relations defined on the hypergroupoids associated with binary relations

    Article • European Journal of Combinatorics, January 2011, Elsevier

    Assoc.prof.dr. Irina Cristea

  66. Enumeration of Rosenberg hypergroups

    Article • Computers & Mathematics with Applications, November 2010, Elsevier

    Assoc.prof.dr. Irina Cristea

  67. About a decomposition of the group

    Article • European Journal of Combinatorics, October 2010, Elsevier

    Assoc.prof.dr. Irina Cristea

  68. Atanassov’s intuitionistic fuzzy grade of hypergroups

    Article • Information Sciences, April 2010, Elsevier

    Assoc.prof.dr. Irina Cristea

  69. Hypergroups and

    Article • European Journal of Combinatorics, April 2010, Elsevier

    Assoc.prof.dr. Irina Cristea

  70. A decomposition of the cyclic groups of order p and p2, where p is a prime number

    Article • Journal of Intelligent & Fuzzy Systems Applications in Engineering and Technology, January 2010, IOS Press

    Assoc.prof.dr. Irina Cristea

  71. Hyperstructures and fuzzy sets endowed with two membership functions

    Article • Fuzzy Sets and Systems, April 2009, Elsevier

    Assoc.prof.dr. Irina Cristea

  72. Binary relations and reduced hypergroups

    Article • Discrete Mathematics, August 2008, Elsevier

    Assoc.prof.dr. Irina Cristea

  73. On the fuzzy grade of hypergroups

    Article • Fuzzy Sets and Systems, May 2008, Elsevier

    Assoc.prof.dr. Irina Cristea