All Stories

  1. Bronze Leonardo–Lucas sequence spaces and their geometric properties

    Article • Acta Universitatis Sapientiae Mathematica, July 2026, Springer Science + Business Media

    Dr Orhan Tug

  2. Some Paranormed Sequence Spaces Which Involve Arithmetic Divisor Sum Function

    Article • Journal of Function Spaces, January 2026, Wiley

    Dr Orhan Tug

  3. On the Four-Dimensional Forward Difference Matrix

    Article • April 2025, Taylor & Francis

    Dr Orhan Tug

  4. A New Generalization of the Hahn Sequence Space via Speed Sequences λ = λ k

    Article • Journal of Mathematics, January 2025, Wiley

    Dr Orhan Tug

  5. On the Double Sequence Space Hϑ as an Extension of Hahn Space h

    Article • International Journal of Mathematics and Mathematical Sciences, January 2025, Wiley

    Dr Orhan Tug

  6. On the New Hahn Sequence Space h (2)

    Article • Abstract and Applied Analysis, January 2025, Wiley

    Dr Orhan Tug

  7. On The Spectrum of Norlund Type Matrix Operator

    Article • Eurasian Journal of Science and Engineering, January 2024, Ishik University

    Dr Orhan Tug

  8. Domain of generalized difference operator Δi3 of order three in the sequence spaces ℓ1 and bv

    Article • January 2023, American Institute of Physics

    Dr Orhan Tug

  9. On the New Generalized Hahn Sequence Space h ...

    Article • Abstract and Applied Analysis, September 2022, Hindawi Publishing Corporation

    Dr Orhan Tug

  10. The Generalized Difference Operator Δ i 3 ...

    Article • Journal of Mathematics, February 2022, Hindawi Publishing Corporation

    Dr Orhan Tug

  11. On The Spectrum of the Matrix Operator A = (a nk ) on Hahn equence Space h

    Article • Eurasian Journal of Science and Engineering, January 2022, Ishik University

    Dr Orhan Tug

  12. Domain of q-Cesàro matrix in Hahn sequence space hd and the space bv of the sequences of bounded variation

    Article • Filomat, January 2022, National Library of Serbia

    Dr Orhan Tug

  13. Domain of generalized difference operator Δi3 of order three on the hahn sequence space h and matrix transformations

    Article • Linear and Multilinear Algebra, October 2021, Taylor & Francis

    Dr Orhan Tug

  14. The roots of polynomials and the operator $$\Delta _i^3$$ on the Hahn sequence space h

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

    Dr Orhan Tug, Prof. Gradimir V. Milovanovic

  15. The spaces of B(r,s,t,u) strongly almost convergent double sequences and matrix transformations

    Article • Bulletin des Sciences Mathématiques, July 2021, Elsevier

    Dr Orhan Tug

  16. Compact operators on the Hahn space

    Article • Monatshefte für Mathematik, June 2021, Springer Science + Business Media

    Dr Orhan Tug

  17. Almost and Strongly Almost B(r ̃,s ̃,t ̃,u ̃)- Summable Double Sequences

    Article • Eurasian Journal of Science and Engineering, January 2021, Ishik University

    Dr Orhan Tug

  18. On the Domain of the Four-Dimensional Sequential Band Matrix in Some Double Sequence Spaces

    Article • Mathematics, May 2020, MDPI AG

    Dr Orhan Tug

  19. On the Banach Algebra B(c(Nt))

    Article • Eurasian Journal of Science and Engineering, January 2019, Ishik University

    Dr Orhan Tug

  20. On almost B-summable double sequence spaces

    Article • Journal of Inequalities and Applications, January 2018, Springer Science + Business Media

    Dr Orhan Tug

  21. On the Characterization of Some Classes of Four-Dimensional Matrices and Almost B-Summable Double Sequences

    Article • Journal of Mathematics, January 2018, Hindawi Publishing Corporation

    Dr Orhan Tug

  22. Nörlund Matrix Domain on Sequence Spaces of p-adic Numbers

    Article • Eurasian Journal of Science and Engineering, January 2018, Ishik University

    Dr Orhan Tug

  23. Four-dimensional generalized difference matrix and some double sequence spaces

    Article • Journal of Inequalities and Applications, June 2017, Springer Science + Business Media

    Dr Orhan Tug

  24. On the Domain of Nörlund Matrix in the Space of Bounded Variation Sequences

    Article • Eurasian Journal of Science and Engineering, January 2017, Ishik University

    Dr Orhan Tug

  25. On the Matrix Domain in the Sequence u

    Article • Eurasian Journal of Science and Engineering, January 2017, Ishik University

    Dr Orhan Tug

  26. Four-Dimensional Generalized Difference Matrix and Almost Convergent Double Sequence Spaces

    Article • January 2017, Springer Science + Business Media

    Dr Orhan Tug

  27. Four-dimensional generalized difference matrix and some double sequence spaces

    Article • January 2016, American Institute of Physics

    Dr Orhan Tug

  28. On the spaces of Nörlund almost null and Nörlund almost convergent sequences

    Article • Filomat, January 2016, National Library of Serbia

    Dr Orhan Tug

  29. Some New Double-Sequence Spaces in 2-Normed Spaces Defined by Ideal Convergence and an Orlicz Function

    Article • ISRN Mathematical Analysis, April 2012, Hindawi Publishing Corporation

    Dr Orhan Tug

  30. Some Almost Lacunary Double Sequence Spaces Defined by Orlicz Functions in 2-Normed Spaces

    Article • ISRN Mathematical Analysis, March 2012, Hindawi Publishing Corporation

    Dr Orhan Tug

  31. Eurasian Journal of Science and Engineering

    Article • Eurasian Journal of Science and Engineering, Ishik University

    Dr Orhan Tug