Prof. Dr. Birsen Sağır Duyar

WSEAS TRANSACTIONS ON MATHEMATICS , cilt.24, ss.203-208, 2025 (Scopus)

2. A note on Köthe–Toeplitz duals and multiplier spaces of sequence spaces involving bicomplex numbers

Sağır Duyar B., Gungor N., Duyar C.

JOURNAL OF APPLIED ANALYSIS , cilt.30, sa.2, ss.301-310, 2024 (ESCI, Scopus)

3. Bicomplex Version of Matrix Transformations Between c₀^k(BC) and c^k(BC) by Using the Hyperbolic-Valued Norm

IRANIAN JOURNAL OF SCIENCE , 2024 (SCI-Expanded, Scopus)

4. On geometrical characteristics and inequalities of new bicomplex Lebesgue Spaces with hyperbolic-valued norm

Toksoy E., Sagir B.

GEORGIAN MATHEMATICAL JOURNAL , cilt.31, sa.3, ss.483-495, 2024 (SCI-Expanded, Scopus)

5. BICOMPLEX MATRIX TRANSFORMATIONS BETWEEN c0 AND c IN BICOMPLEX SETTING

Sağır Duyar B., Değirmen N., Duyar C.

UPB SCIENTIFIC BULLETIN, SERIES A: APPLIED MATHEMATICS AND PHYSICS , cilt.85, sa.4, ss.115-128, 2023 (SCI-Expanded, Scopus)

6. **On bicomplex BC-modules l_p^k (BC) and some of their geometric properties**

Sağır Duyar B., Değirmen N., Duyar C.

GEORGIAN MATHEMATICAL JOURNAL , cilt.30, sa.1, ss.65-79, 2023 (SCI-Expanded, Scopus)

7. Common Fixed, Coupled Coincidence and Common Coupled Fixed Point Results in Hyperbolic Valued Metric Spaces

Sager N., Săgır B.

BOLETIM SOCIEDADE PARANAENSE DE MATEMATICA , cilt.41, 2023 (ESCI, Scopus)

8. BICOMPLEX MATRIX TRANSFORMATIONS BETWEEN c0 AND c IN BICOMPLEX SETTING

UPB Scientific Bulletin, Series A: Applied Mathematics and Physics , cilt.2023, sa.4, ss.115-128, 2023 (SCI-Expanded, Scopus)

9. -Boundedness and -Continuity of Non-Newtonian Superposition Operators on ℓ∞,α and ℓ1,β

JOURNAL OF MATHEMATICAL EXTENSION , 2023 (ESCI)

10. Bicomplex numbers with respect to the geometric calculus and some inequalities

Erciyes Üniversitesi Fen Bilimleri Enstitüsü Dergisi , cilt.38, sa.2, ss.335-348, 2022 (TRDizin)

11. **SOME FUNDAMENTAL PROPERTIES OF BANACH SPACES l(p) (BC (N)) WITH THE *-NORM (sic)center dot(sic)(2),(lp(BC(N)))**

TRANSACTIONS OF A RAZMADZE MATHEMATICAL INSTITUTE , cilt.176, sa.2, ss.183-195, 2022 (ESCI)

12. **Some fundamental properties of Banach spaces l_{p}(BC(N)) with the *-Norm ||.||_{2,l_{p}(BC(N))}**

Transactions of A. Razmadze Mathematical Institute , cilt.176, sa.2, ss.183-195, 2022 (Hakemli Dergi)

13. SOME FUNDAMENTAL PROPERTIES OF BANACH SPACES lp (BC (N)) WITH.... THE ∗−NORM (Equation Presented)

Değirmen N., Sağir B.

Transactions of A. Razmadze Mathematical Institute , cilt.176, sa.2, ss.183-195, 2022 (Scopus)

14. SOME NEW NOTES ON THE BICOMPLEX SEQUENCE SPACES lp BC

Journal of Fractional Calculus and Applications , cilt.13, sa.2, ss.66-76, 2022 (Hakemli Dergi)

15. D-Topological Duals of Bicomplex BC-Modules l_{p}^{k}(BC)

JOURNAL OF MATHEMATICAL EXTENSION , cilt.16, sa.10, ss.1-25, 2022 (Hakemli Dergi)

16. Some Geometric Properties of Bicomplex Sequence Spaces l p BC

Konuralp Journal of Mathematics , cilt.10, sa.1, ss.44-49, 2022 (Hakemli Dergi)

17. *-Complex Valued Metric Spaces And Zamfirescu Type Contractions

SAĞIR DUYAR B., Eyüpoğlu İ.

APPLIED MATHEMATICS E-NOTES , cilt.22, ss.105-120, 2022 (ESCI, Scopus)

18. **D-Topological Duals of Bicomplex BC-Modules l_p^k (BC)**

Değirmen N., Sagir B.

JOURNAL OF MATHEMATICAL EXTENSION , sa.10, 2022 (ESCI)

19. Geometrik hesap tarzına göre Lebesgue dizi uzaylarının bazı geometrik özellikleri

Gümüşhane Üniversitesi Fen Bilimleri Dergisi , cilt.12, sa.2, ss.395-403, 2022 (TRDizin)

20. Fixed Points of Hyperbolic Contraction Mappings on Hyperbolic Valued Metric Spaces

Sarajevo Journal of Mathematics , cilt.17, sa.2, ss.223-236, 2021 (Hakemli Dergi)

21. **On -Continuity and -Uniform Continuity of Some Non-Newtonian Superposition Operators**

Avrupa Bilim ve Teknoloji Dergisi , ss.959-967, 2021 (TRDizin)

22. Boundedness of Superposition Operators on the Double Sequence Spaces of Maddox ℒ(𝑝)

International Journal of Latest Technology in Engineering, Management & Applied Science , cilt.10, sa.10, ss.5-9, 2021 (Hakemli Dergi)

23. **On Characterization of *-Boundedness of Superposition Operators on the Sequence Spaces ...**

International Journal of Latest Technology in Engineering, Management & Applied Science , cilt.10, sa.10, ss.10-17, 2021 (Hakemli Dergi)

24. **ON -BOUNDEDNESS AND -LOCAL BOUNDEDNESS OF NON-NEWTONIAN SUPERPOSITION OPERATORS IN c0,α AND cα TO l1,β**

Journal of Universal Mathematics , cilt.4, sa.2, ss.241-251, 2021 (Hakemli Dergi)

25. **Banach spaces l(p) (BC(N)) with the *- norm (parallel to)double over dot . (parallel to)double over dot(2,lp(BC(N))) and some properties**

Sager N., Sağır Duyar B.

TBILISI MATHEMATICAL JOURNAL , cilt.14, sa.2, ss.65-81, 2021 (ESCI, Scopus)

26. Some Inequalities in Quasi-Banach Algebra of Non-Newtonian Bicomplex Numbers

Sager N., Sağır Duyar B.

FILOMAT , cilt.35, sa.7, ss.2231-2243, 2021 (SCI-Expanded, Scopus)

27. On Completeness of Some Bicomplex Sequence Spaces

SAĞIR DUYAR B., ERDOĞAN F.

Palestine Journal of Mathematics , cilt.9, sa.2, ss.891-902, 2020 (Scopus)

28. On Non-Newtonian Power Series and Its Applications

Konuralp Journal of Mathematics , cilt.8, sa.2, ss.294-303, 2020 (Hakemli Dergi)

29. On Completeness of Some Bicomplex Sequence Spaces

Sağır Duyar B., Erdogan F.

Palestine Journal of Mathematics , cilt.9, sa.2, ss.891-902, 2020 (Scopus)

30. On completeness of some bicomplex sequence spaces

Sager N., Sağır B., Goyal S.

Palestine Journal of Mathematics , cilt.9, sa.2, ss.891-902, 2020 (Scopus)

31. A note on Multipliers of weighted Lebesgeu spaces

SAĞIR DUYAR B., DUYAR C.

THAI JOURNAL OF MATHEMATICS , cilt.17, sa.1, ss.229-237, 2019 (Scopus)

32. A Note on Multipliers of Weighted Lebesgue Spaces

SAĞIR DUYAR B., DUYAR C.

THAI JOURNAL OF MATHEMATICS , cilt.17, sa.1, ss.229-237, 2019 (Scopus)

33. ON THE FUNCTION SEQUENCES AND SERIES IN THE NON-NEWTONIAN CALCULUS

JOURNAL OF SCIENCE AND ARTS , sa.4, ss.915-936, 2019 (ESCI)

34. On Characterization of Non-Newtonian Superposition Operators in Some Sequence Spaces

Sağır Duyar B., Erdogan F.

FILOMAT , cilt.33, sa.9, ss.2601-2612, 2019 (SCI-Expanded, Scopus)

35. Continuity of Superposition Operators on the Double Sequence Spaces of Maddox L(p)

Gungor N., Sağır Duyar B.

IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE , cilt.41, sa.A2, ss.451-456, 2017 (SCI-Expanded, Scopus)

36. VECTOR-VALUED CESARO SUMMABLE GENERALIZED LORENTZ SEQUENCE SPACE

OĞUR O., SAĞIR DUYAR B.

COMMUNICATIONS FACULTY OF SCIENCES UNIVERSITY OF ANKARA-SERIES A1 MATHEMATICS AND STATISTICS , cilt.36, sa.1, ss.179-186, 2017 (TRDizin)

37. On a Class of n-Normed Double Sequences Related to p-Summable Double Sequence Space lp(2)

DUYAR C., SAĞIR DUYAR B., OĞUR O.

Electronic Journal of Mathematical Analysis and Applications , cilt.5, sa.1, ss.305-312, 2017 (Hakemli Dergi)

38. Non-Newtonian Comment of Lebesgue Measure in Real Numbers

Duyar C., Sağır Duyar B.

JOURNAL OF MATHEMATICS , cilt.2017, ss.1-4, 2017 (SCI-Expanded, Scopus)

39. Vector-valued Cesàro summable generalized Lorentz sequence space

OĞUR O., SAĞIR DUYAR B.

COMMUNICATIONS FACULTY OF SCIENCES UNIVERSITY OF ANKARA-SERIES A1 MATHEMATICS AND STATISTICS , cilt.66, sa.1, ss.179-186, 2017 (TRDizin)

40. ON N NORMED CESARO SEQUENCE SPACE Cesn

DUYAR C., KANBER O., SAĞIR DUYAR B.

Int. Electron. J. Pure Appl. Math , 2016 (Hakemli Dergi)

41. A New Perspective to Convergence Types in Classical Real Analysis Using Double Sequences

Duyar C., Sagir B., Ogur O.

FILOMAT , sa.2, ss.483-488, 2016 (SCI-Expanded, Scopus)

42. A note on weighted Sobolev algebras L-omega(1)(R-d) boolean AND W-k(p)(R-d)

Gungor N., Sağır Duyar B.

JOURNAL OF THE RAMANUJAN MATHEMATICAL SOCIETY , cilt.30, sa.4, ss.361-373, 2015 (SCI-Expanded)

43. Some Basic Topological Properties on Non-Newtonian Real Line

DUYAR C., SAĞIR DUYAR B., OĞUR O.

British Journal of Mathematics & Computer Science , cilt.9, sa.4, ss.295-302, 2015 (Hakemli Dergi)

44. LOCALLY BOUNDEDNESS AND CONTINUITY OF SUPERPOSITION OPERATORS ON DOUBLE SEQUENCE SPACES C-r0

Sağır Duyar B., Gungor N.

JOURNAL OF COMPUTATIONAL ANALYSIS AND APPLICATIONS , cilt.19, sa.2, ss.365-377, 2015 (SCI-Expanded, Scopus)

45. Locally boundedness and continuity of superposition operators on double sequence spaces Cr0

Sağir B., Güngör N.

Journal of Computational Analysis and Applications , cilt.19, sa.2, ss.365-377, 2015 (SCI-Expanded, Scopus)

46. CONTINUITY OF SUPERPOSITION OPERATORS ON DOUBLE SEQUENCES SPACES OF MADDOX Cr0 p

Gungor N., Sağır Duyar B.

Romanian Journal OF Mathematics And Computer Science , cilt.5, sa.1, ss.35-45, 2015 (Hakemli Dergi)

47. Basic Topological Properties on Non Newtonian Real Line

DUYAR C., SAĞIR DUYAR B., OĞUR O.

British Journal of Mathematics & Computer Science , 2015 (Hakemli Dergi)

48. SOME ASPECTS OF L-v(q) (R-d) boolean AND W-k(p,w) (R-d)

MISKOLC MATHEMATICAL NOTES , cilt.16, sa.1, ss.165-180, 2015 (SCI-Expanded, Scopus)

49. Continuity of Superposition Operators on the Double Sequence Spaces L-p

Sağır Duyar B., Gungor N.

FILOMAT , cilt.29, sa.9, ss.2107-2118, 2015 (SCI-Expanded, Scopus)

50. Multiplication Operators On Orlicz Lorentz Spaces

SAĞIR DUYAR B., DUYAR C., OĞUR O.

Journal of Mathematical and Computational Science , cilt.44, ss.991-1010, 2015 (Scopus)

51. A NOTE ON n BANACH LATTICES

Eryılmaz İ., Sağır Duyar B.

Journal of Applied Functional Analysis , cilt.10, sa.1/2, ss.70-77, 2015 (Hakemli Dergi)

52. Multiplication operators on Orlicz Lorentz sequence spaces

SAĞIR DUYAR B., OĞUR O., DUYAR C.

Journal of Mathematical Computational Science , cilt.5, sa.3, ss.265-272, 2015 (Hakemli Dergi)

53. On Vector Valued Generalized Lorentz Difference Sequence Space

SAĞIR DUYAR B., OĞUR O.

Journal Of Operators , cilt.545346, 2014 (Hakemli Dergi)

54. A new double sequence space m2 F p defined by a double sequence of modulus functions

SAĞIR DUYAR B., DUYAR C., OĞUR O.

International Journal of Analysis , 2014 (Hakemli Dergi)

55. Some properties of Sobolev algebras modelled on Lorentz spaces

STUDIA UNIVERSITATIS BABES-BOLYAI MATHEMATICA , cilt.59, sa.1, ss.83-91, 2014 (ESCI)

56. A New Double Sequence Space m(2) (F, phi, p) Defined by a Double Sequence of Modulus Functions

Sağır Duyar B., Duyar C., Ogur O.

INTERNATIONAL JOURNAL OF ANALYSIS , 2014 (ESCI)

57. On a new class Wp,q of Segal algebras

Sağır Duyar B., Duyar C.

JOURNAL OF COMPUTATIONAL ANALYSIS AND APPLICATIONS , cilt.13, sa.4, ss.692-700, 2011 (SCI-Expanded, Scopus)

58. ON FUNCTIONS WITH FOURIER TRANSFORMS IN A(p)(lip) (G)

Aydin I., Sağır Duyar B.

DEMONSTRATIO MATHEMATICA , cilt.41, sa.2, ss.425-432, 2008 (ESCI)

59. On functions with Fourier transforms in Alipp(G)

Aydin I., Saǧir B.

Demonstratio Mathematica , cilt.41, sa.2, ss.425-432, 2008 (Scopus)

60. On Some Properties of Lipsch itz Spaces

MUTİ H., SAĞIR DUYAR B.

Int. J. Appl. Math. , sa.31, ss.181, 2006 (Hakemli Dergi)

61. A note on multipliers of weighted Lipschitz spaces

MUTİ H., SAĞIR DUYAR B.

Jangjeon Math. Soc. , 2005 (Hakemli Dergi)

62. On Some Properties of Vector Valued A 1 pq G A algebras

SAĞIR DUYAR B., DUYAR C.

Int. J. Appl. Math. , sa.31, ss.33, 2004 (Hakemli Dergi)

63. Multipliers and tensor products of vector valued Lp (G, A) spaces

Saǧir B.

Taiwanese Journal of Mathematics , cilt.7, sa.3, ss.493-501, 2003 (SCI-Expanded, Scopus)

64. Multipliers and Relative Comletions of Vector Valued L G A Spacea

DUYAR C., SAĞIR DUYAR B.

New Zealand J. Math. , sa.31, ss.33, 2002 (Hakemli Dergi)

65. On functions with Fourier transforms in W(B,Y)

Saǧir B.

Demonstratio Mathematica , cilt.33, sa.2, ss.355-363, 2000 (Scopus)

66. The Wiener Type Spaces W B w y p q G L v r R

SAĞIR DUYAR B., GÜRKANLI A. T.

İstanbul Üniv. Fen Fak. Mat. Derg. , sa.57, ss.53, 1999 (Hakemli Dergi)

67. The Wiener Type Spaces W w p L v r R n

SAĞIR DUYAR B., GÜRKANLI A. T.

Pure Appl. Math. Sci. , ss.1, 1995 (Hakemli Dergi)

68. The Spaces B w y p q G and some properties

SAĞIR DUYAR B., GÜRKANLI A. T.

J. Fac. Sci. Ege Univ. Fen. Fak. Derg. Ser. A/B , sa.17, ss.2, 1994 (Hakemli Dergi)

Hakemli Bilimsel Toplantılarda Yayımlanmış Bildiriler 10

1. **A Study on -differentiability and -continuity for non-Newtonian Calculus**

ERYILMAZ İ., SAĞIR DUYAR B.

4th International Conference on Engineering, Natural and Social Sciences, Konya, Türkiye, 22 - 23 Ekim 2024, ss.288-293, (Tam Metin Bildiri)

2. **Non-Newtonian Calculus: *-Convexity and its properties**

ERYILMAZ İ., SAĞIR DUYAR B.

5th International Conference on Innovative Academic Studies, Konya, Türkiye, 10 - 11 Ekim 2024, ss.750-756, (Tam Metin Bildiri)

3. Bicomplex sequences with hyperbolic-valued norm

Çay R., SAĞIR DUYAR B.

6. International Black Sea Modern Scientific Research Congress, Trabzon, Türkiye, 23 Ağustos 2024, (Tam Metin Bildiri)

4. ON A CLASS OF BICOMPLEX WEIGHTED SEQUENCE SPACES

SAĞIR DUYAR B.

2. International Black Sea Modern Scientific Research Congress, Rize, Türkiye, 21 Aralık 2022, cilt.2, ss.127-133, (Tam Metin Bildiri)

5. ON THE LOCALLY BOUNDEDNESS AND UNIFORM CONTINUITY CRITERIAS FOR SUPERPOSITION OPERATORS ON l_{1}(F)

SAĞIR DUYAR B.

12th INTERNATIONAL CONFERENCE ON ENGINEERING & NATURAL SCIENCES, Bingöl, Türkiye, 24 Aralık 2021, ss.157-163, (Tam Metin Bildiri)

6. Bikompleks Maddox Dizi Uzaylarının Tamlığı Üzerine

SAGER N., SAĞIR DUYAR B.

32. ULUSAL MATEMATİK SEMPOZYUMU, Samsun, Türkiye, 31 Ağustos - 03 Eylül 2019, (Özet Bildiri)

7. On the Function Sequences and Series in the Non-Newtonian Calculus

SAĞIR DUYAR B., Erdoğan F.

International Conference on Computational and Statistical Methods in Applied Sciences, Samsun, Türkiye, 9 - 11 Kasım 2017, (Özet Bildiri)

8. Some Geometric Properties in Weighted Lebesgue Sequence Spaces

SAĞIR DUYAR B., İrem A.

International Conference on Computational and Statistical Methods in Applied Sciences, Samsun, Türkiye, 9 - 11 Kasım 2017, (Özet Bildiri)

9. Boundedness of Superposition Operators on the Double Sequence Spaces of Maddox L p