Doç. Dr. ŞUAYİP TOPRAKSEVEN

Yayın Ağı

Makaleler 52

1. Supercloseness of weak Galerkin methods in a weighted and balanced norm for singularly perturbed reaction–diffusion problems

TOPRAKSEVEN Ş., Zhu P.

Mathematics and Computers in Simulation , cilt.246, ss.491-508, 2026 (SCI-Expanded, Scopus)

2. A Weak Galerkin Mixed Finite Element Method for Singularly Perturbed Biharmonic Problems on a Layer Adapted Mesh in 2D

Raina A., Srinivasan N., Toprakseven Ş.

ADVANCES IN COMPUTATIONAL MATHEMATICS , cilt.1, sa.1, ss.1-35, 2026 (SCI-Expanded, Scopus)

3. Error estimates of the weak Galerkin method for singularly perturbed fourth-order reaction-diffusion problems

Toprakseven Ş., Srinavasan N.

NUMERICAL ALGORITHMS , cilt.102, sa.2, ss.1-30, 2026 (SCI-Expanded, Scopus)

4. Asymptotic eigenvalue analysis for a conformable fractional Sturm–Liouville problem

Cabri O., Toprakseven Ş.

COMMUNICATIONS IN ADVANCED MATHEMATICAL SCIENCES , cilt.1, sa.1, ss.1-15, 2026 (Hakemli Dergi)

5. Physics informed neural network framework for modified kawahara equations

Anand S., Srinivasan N., Toprakseven Ş.

Advances in Computational Science and Engineering , cilt.1, sa.1, ss.1-32, 2026 (Scopus)

6. Error Analysis of an Extended Discontinuous Galerkin (XDG) Scheme for Boundary Layer Problems

Toprakseven Ş., French D., Vaughan B.

FILOMAT , cilt.40, sa.13, ss.13-33, 2026 (SCI-Expanded, Scopus)

7. A robust weak Galerkin method for singularly perturbed fourth-order convection–diffusion problems

Toprakseven Ş., Dinibutun S.

ELECTRONIC RESEARCH ARCHIVE , cilt.34, sa.5, ss.3410-34446, 2026 (SCI-Expanded, Scopus)

8. Residual-guided Fractional-Langevin Particle Swarm Optimization: A hybrid dynamics framework for global optimization

Demir E., Zeren Y., Toprakseven Ş., Demirci A.

SWARM AND EVOLUTIONARY COMPUTATION , cilt.104, ss.102367, 2026 (SCI-Expanded, Scopus)

9. An ADI type operator splitting WG-FEM for 2D nonlinear unsteady singularly perturbed problem

Kumar N., Singh J., TOPRAKSEVEN Ş., Jiwari R.

Numerical Algorithms , cilt.101, sa.3, ss.1701-1738, 2026 (SCI-Expanded, Scopus)

10. Adaptive Physics-Informed Neural Networks for Singularly Perturbed Convection-Diffusion Problems

Toprakseven Ş.

Türkiye Mathematical Sciences , cilt.2, sa.2, ss.2-12, 2025 (Hakemli Dergi)

11. WG-FEM With ADI-Type Splitting: A High-Order Approach for Two-Parameter Singularly Perturbed 2D Parabolic Problems on Bakhvalov Mesh

Kumar N., Toprakseven S., Singh J.

Numerical Methods for Partial Differential Equations , cilt.41, sa.5, 2025 (SCI-Expanded, Scopus)

12. A Dimensionally Reduced Weak Galerkin FEM for Solving 2D Multi-Term Time-Fractional Diffusion Equation

Seal A., Natesan S., TOPRAKSEVEN Ş.

Numerical Methods for Partial Differential Equations , cilt.41, sa.5, 2025 (SCI-Expanded, Scopus)

13. Anisotropic error analysis of weak Galerkin finite element method for singularly perturbed biharmonic problems

Raina A., Natesan S., TOPRAKSEVEN Ş.

Mathematics and Computers in Simulation , cilt.229, ss.203-221, 2025 (SCI-Expanded, Scopus)

14. An efficient operator splitting weak Galerkin method for singularly perturbed 2D parabolic PDEs

Raina A., Natesan S., TOPRAKSEVEN Ş.

Numerical Algorithms , 2025 (SCI-Expanded, Scopus)

15. A Novel ADI-Weak Galerkin Method for Singularly Perturbed Two-Parameter 2D Parabolic Pdes

Raina A., Natesan S., TOPRAKSEVEN Ş.

Numerical Methods for Partial Differential Equations , cilt.41, sa.1, 2025 (SCI-Expanded, Scopus)

16. An efficient weak Galerkin FEM for third-order singularly perturbed convection-diffusion differential equations on layer-adapted meshes

TOPRAKSEVEN Ş., Srinivasan N.

Applied Numerical Mathematics , cilt.204, ss.130-146, 2024 (SCI-Expanded, Scopus)

17. A weak Galerkin finite element method for singularly perturbed problems with two small parameters on Bakhvalov-type meshes

Toprakseven Ş., Kaushik A., Sharma M.

Numerical Algorithms , cilt.97, sa.2, ss.727-751, 2024 (SCI-Expanded, Scopus)

18. An adaptive mesh generation and higher-order difference approximation for the system of singularly perturbed reaction–diffusion problems

Kaushik A., Gupta A., Jain S., TOPRAKSEVEN Ş., Sharma M.

Partial Differential Equations in Applied Mathematics , cilt.11, 2024 (Scopus)

19. A Crank-Nicolson WG-FEM for unsteady 2D convection-diffusion equation with nonlinear reaction term on layer adapted mesh

Kumar N., TOPRAKSEVEN Ş., Singh Yadav N., Yuan J.

Applied Numerical Mathematics , cilt.201, ss.322-346, 2024 (SCI-Expanded, Scopus)

20. A Dimensional-Splitting Weak Galerkin Finite Element Method for 2D Time-Fractional Diffusion Equation

Seal A., Natesan S., Toprakseven Ş.

Journal of Scientific Computing , cilt.98, sa.3, 2024 (SCI-Expanded, Scopus)

21. A numerical method for singularly perturbed convection–diffusion–reaction equations on polygonal meshes

Kumar N., Toprakseven Ş., Jiwari R.

Computational and Applied Mathematics , cilt.43, sa.1, 2024 (SCI-Expanded, Scopus)

22. On q Sturm Liouville Operator with Periodic Boundary Conditions

Cabri O., Toprakseven Ş.

Contemporary Mathematics (Singapore) , cilt.5, sa.4, ss.4309-4322, 2024 (ESCI, Scopus)

23. A weak Galerkin finite element method for parabolic singularly perturbed convection-diffusion equations on layer-adapted meshes

TOPRAKSEVEN Ş., Dinibutun S.

Electronic Research Archive , cilt.32, sa.8, ss.5033-5066, 2024 (SCI-Expanded, Scopus)

24. Error analysis of a weak Galerkin finite element method for singularly perturbed differential-difference equations

Toprakseven Ş., Tao X., Hao J.

Journal of Difference Equations and Applications , cilt.30, sa.4, ss.435-464, 2024 (SCI-Expanded, Scopus)

25. Optimal order uniform convergence of weak Galerkin finite element method on Bakhvalov-type meshes for singularly perturbed convection dominated problems

Toprakseven Ş.

Hacettepe Journal of Mathematics and Statistics , cilt.52, sa.4, ss.850-875, 2023 (SCI-Expanded, Scopus)

26. Lyapunov-type inequality for an anti-periodic fractional boundary value problem of the riesz-caputo derivative

Toprakseven Ş., Bengi R., ZEREN Y.

Sigma Journal of Engineering and Natural Sciences , cilt.41, sa.4, ss.807-811, 2023 (ESCI, Scopus)

27. The Existence of Positive Solutions for the Caputo-Fabrizio Fractional Boundary Value Problems at Resonance

Toprakseven Ş.

Turkish Journal of Mathematics and Computer Science , cilt.15, sa.1, ss.71-78, 2023 (Scopus, TRDizin)

28. Error analysis of a weak Galerkin finite element method for two-parameter singularly perturbed differential equations in the energy and balanced norms

Toprakseven Ş., Zhu P.

Applied Mathematics and Computation , cilt.441, 2023 (SCI-Expanded, Scopus)

29. A LYAPUNOV–TYPE INEQUALITY FOR A CLASS OF HIGHER–ORDER FRACTIONAL BOUNDARY VALUE PROBLEMS

Toprakseven Ş.

Journal of Mathematical Inequalities , cilt.17, sa.2, ss.435-445, 2023 (SCI-Expanded, Scopus)

30. Error estimations of a weak Galerkin finite element method for a linear system of ℓ ≥ 2 coupled singularly perturbed reaction-diffusion equations in the energy and balanced norms

Toprakseven Ş., Dinibutun S.

AIMS Mathematics , cilt.8, sa.7, ss.15427-15465, 2023 (SCI-Expanded, Scopus)

31. A MODIFIED WEAK GALERKIN FINITE ELEMENT METHOD FOR SINGULARLY PERTURBED PARABOLIC CONVECTION-DIFFUSION-REACTION PROBLEMS

Toprakseven Ş., Gao F.

Journal of Computational Mathematics , cilt.41, sa.6, ss.1246-1280, 2023 (SCI-Expanded, Scopus)

32. A high-order stabilizer-free weak Galerkin finite element method on nonuniform time meshes for subdiffusion problems

Toprakseven Ş., Dinibutun S.

AIMS Mathematics , cilt.8, sa.12, ss.31022-31049, 2023 (SCI-Expanded, Scopus)

33. Existence of solutions for fractional boundary value problems with Riesz space derivative and nonlocal conditions

Toprakseven Ş.

Studia Universitatis Babes-Bolyai Mathematica , cilt.68, sa.4, ss.701-715, 2023 (ESCI, Scopus)

34. A parameter-uniform weak Galerkin finite element method for a coupled system of singularly perturbed reaction-diffusion equations

Toprakseven Ş., Zhu P.

Filomat , cilt.37, sa.13, ss.4351-4374, 2023 (SCI-Expanded, Scopus)

35. On The Solutions of Fractional Boundary Value Problems for a Combined Caputo Fractional Differential Equations

Toprakseven Ş.

Contemporary Mathematics (Singapore) , cilt.4, sa.2, ss.202-216, 2023 (Scopus)

36. A weak Galerkin finite element method on temporal graded meshes for the multi-term time fractional diffusion equations

Toprakseven Ş.

Computers and Mathematics with Applications , cilt.128, ss.108-120, 2022 (SCI-Expanded, Scopus)

37. Optimal order uniform convergence in energy and balanced norms of weak Galerkin finite element method on Bakhvalov-type meshes for nonlinear singularly perturbed problems

Toprakseven Ş.

Computational and Applied Mathematics , cilt.41, sa.8, 2022 (SCI-Expanded, Scopus)

38. Superconvergence of a modified weak Galerkin method for singularly perturbed two-point elliptic boundary-value problems

Toprakseven Ş.

Calcolo , cilt.59, sa.1, 2022 (SCI-Expanded, Scopus)

39. Error analysis of an extended discontinuous galerkin method for highly-oscillatory problems

French D., Vaughan B., Toprakseven Ş.

Sigma Journal of Engineering and Natural Sciences , cilt.39, ss.64-73, 2021 (ESCI, Scopus)

40. On the Solutions of the Higher Order Fractional Differential Equations of Riesz Space Derivative with Anti-Periodic Boundary Conditions

Toprakseven Ş.

COMMUNICATIONS IN ADVANCED MATHEMATICAL SCIENCES , cilt.4, sa.4, ss.171-179, 2021 (Hakemli Dergi)

41. A weak Galerkin finite element method for time fractional reaction-diffusion-convection problems with variable coefficients

Toprakseven Ş.

Applied Numerical Mathematics , cilt.168, ss.1-12, 2021 (SCI-Expanded, Scopus)

42. Solvability of Fractional Boundary Value Problems for a Combined Caputo Derivative

Toprakseven Ş.

Konuralp Journal of Mathematics , cilt.9, sa.1, ss.119-126, 2021 (Scopus)

43. Existence and uniqueness of solutions to anti-periodic Riezs-Caputo impulsive fractional boundary value problems

Toprakseven Ş.

Advanced Studies: Euro-Tbilisi Mathematical Journal , cilt.14, sa.1, ss.71-82, 2021 (Scopus)

44. Existence and uniqueness of solutions to Riesz-Caputo impulsive fractional boundary value problems

Toprakseven Ş.

Journal of Interdisciplinary Mathematics , cilt.24, sa.8, ss.2071-2086, 2021 (ESCI, Scopus)

45. Uniform convergent modified weak Galerkin method for convection-dominated two-point boundary value problems

Toprakseven Ş., Zhu P.

Turkish Journal of Mathematics , cilt.45, sa.6, ss.2703-2730, 2021 (SCI-Expanded, Scopus, TRDizin)

46. POSITIVE SOLUTIONS FOR TWO-POINT CONFORMABLE FRACTIONAL DIFFERENTIAL EQUATIONS BY MONOTONE ITERATIVE SCHEME

Toprakseven Ş.

Turkish World Mathematical Society Journal of Applied and Engineering Mathematics , cilt.11, sa.1, ss.289-301, 2021 (ESCI, Scopus)

47. A SPACE-TIME DISCONTINUOUS GALERKIN METHOD FOR LINEAR HYPERBOLIC PDEíS WITH HIGH FREQUENCIES

toprakseven s.

Communications Faculty of Sciences University of Ankara Series A1: Mathematics and Statistics , cilt.69, sa.1, ss.213-231, 2020 (ESCI, TRDizin)

48. On Lyapunov-type inequalities for boundary value problems of fractional Caputo-Fabrizio derivative

Toprakseven Ş.

Turkish Journal of Mathematics , cilt.44, sa.4, ss.1362-1375, 2020 (SCI-Expanded, Scopus, TRDizin)

49. Hartman–wintner and lyapunov-type inequalities for high order fractional boundary value problems

Toprakseven Ş.

Filomat , cilt.34, sa.7, ss.2273-2281, 2020 (SCI-Expanded, Scopus)

50. The Existence and Uniqueness of Initial-Boundary Value Problems of the Fractional Caputo-Fabrizio Differential Equations

Toprakseven Ş.

Universal Journal of Mathematics and Applications , cilt.2, sa.2, ss.100-106, 2019 (Scopus)

51. Conformable Kesirli Diferansiyel Denklemlerinin Taylor ve Sonlu Farklar Metodu ile Sayısal Çözümleri

toprakseven s.

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi , cilt.23, sa.3, ss.850-863, 2019 (TRDizin)

52. THE EXISTENCE of POSITIVE SOLUTIONS and A LYAPUNOV TYPE INEQUALITY for BOUNDARY VALUE PROBLEMS of the FRACTIONAL CAPUTO-FABRIZIO DIFFERENTIAL EQUATIONS

Toprakseven Ş.

Sigma Journal of Engineering and Natural Sciences , cilt.37, sa.4, ss.1129-1137, 2019 (Scopus)

Hakemli Bilimsel Toplantılarda Yayımlanmış Bildiriler 17

1. Introduction to Singularly Perturbed Problems

Toprakseven Ş.

The First National Symposium of Bozok Faculty of Science and Letters, Yozgat, Türkiye, 12 - 13 Mayıs 2026, (Yayınlanmadı)

2. Quadratic Spline Collocation Method for Time-Fractional Singularly Perturbed Problems

Toprakseven Ş., Zeren Y.

9th International Conference on Mathematical Advances and Applications (ICOMAA-2026) , İstanbul, Türkiye, 6 - 08 Mayıs 2026, cilt.1, sa.1, ss.1-12, (Tam Metin Bildiri)

3. Analytical Solutions of Conformable Differential Equations

Toprakseven Ş., Zeren Y.

8th {I}nternational {C}onference on {M}athematical {A}dvances and {A}pplication, (\textsc{ICOMAA} 2025) , 2025, İstanbul, Türkiye, 7 - 09 Mayıs 2025, cilt.2, sa.1, ss.176-181, (Tam Metin Bildiri)

4. Analytical solutions of fractional heat equations using fractional Fourier transform

Toprakseven Ş., Zeren Y.

8th {I}nternational {C}onference on {M}athematical {A}dvances and {A}pplication, (\textsc{ICOMAA} 2025), İstanbul, Türkiye, 7 - 09 Mayıs 2025, ss.120, (Özet Bildiri)

5. A Finite difference Scheme for two-point Fractional Boundary Value Problem of Conformable Fractional Derivative

Toprakseven Ş.

7th {I}nternational {C}onference on {M}athematical {A}dvances and {A}pplication, (textsc{ICOMAA} 2024), İstanbul, Türkiye, 8 - 11 Mayıs 2024, ss.175, (Özet Bildiri)

6. A balanced norm error estimate of WG-FEM for fourth-order singularly perturbed reaction-diffusion problems

Toprakseven Ş., Srinivasan N.

Boundary and Interior Layers, Computational and Asymptotic Methods} - {BAIL} 2024, A-Coruna, İspanya, 10 - 14 Haziran 2024, ss.40, (Özet Bildiri)

7. Neural Networks For Accurate Solutions of Boundary Value Problems

Toprakseven Ş.

The {YOBU} {International Middle Anatolian Symposium}, Yozgat, Türkiye, 16 - 18 Mayıs 2024, ss.146-147, (Özet Bildiri)

8. Results on eigenvalue problems of nonlinear conformable fractional differential equations

Toprakseven Ş.

6th International Conference on Mathematical Advances and Applications (ICOMAA 2023), İstanbul, Türkiye, 10 - 13 Mayıs 2023, ss.210-215, (Tam Metin Bildiri)

9. The existence of positive solutions for the Caputo-Fabrizio fractional boundary value problems at resonance

Toprakseven Ş.

5th International ONLINE Conference on Mathematical Advances and Applications, İstanbul, Türkiye, 11 - 15 Mayıs 2022, ss.183, (Özet Bildiri)

10. Positive solutions for a singular Caputo-Fabrizio fractional differential equations

Toprakseven Ş., Bengi R.

International ONLINE Conference on Mathematical Advances and Applications (ICOMAA-2022)., İstanbul, Türkiye, 11 - 14 Mayıs 2022, cilt.5, sa.1, ss.119-123, (Tam Metin Bildiri)