Balıkesir Üniversitesi — ana sayfa AKADEMİK BİLGİ SİSTEMİ

Prof.Dr. RAMAZAN AKGÜN

FEN-EDEBİYAT FAKÜLTESİ, MATEMATİK BÖLÜMÜ, ANALİZ VE FONKSİYONLAR TEORİSİ ANABİLİM DALI

Balıkesir Üniversitesi

Araştırmacı Kimlikleri

Akademik Göstergeler

  • Web of Science: 46 yayın, 352 atıf, h-indeks 9
  • Scopus: 42 yayın, 172 atıf, h-indeks 11
  • YÖKSİS: 56 yayın, 348 atıf, h-indeks 9

Makaleler (60)

  1. Jackson-Stechkin type inequality in weighted Lorentz spaces
    Akgün R. · Mathematical Inequalities and Applications · 2015 · Uluslararası · Q2 · DOI: 10.7153/mia-18-100
  2. Generalized derivatives and approximation in weighted Lorentz spaces
    Akgün R. · Bulletin of the Belgian Mathematical Society Simon Stevin · 2017 · Uluslararası · Q2 · DOI: 10.36045/bbms/1506477686
  3. Improved direct and converse theorems in weighted Lorentz spaces
    AKGÜN RAMAZAN,YILDIRIR YUNUS EMRE · BULLETIN BELGIAN MATHEMATICS SOCIETY SIMON STEVIN · 2016 · Uluslararası · Q2 · DOI: 10.36045/bbms/1464710117
  4. Convolution and Jackson inequalities in Musielak–Orlicz spaces
    AKGÜN RAMAZAN,YILDIRIR YUNUS EMRE · Turkish Journal of Mathematics · 2018 · Uluslararası · Q3 · DOI: 10.3906/mat-1801-62
  5. Approximation in weighted Smirnov Orlicz Classes
    İSRAFİLZADE DANİYAL,AKGÜN RAMAZAN · Journal of Mathematics of Kyoto University · 2006 · Uluslararası · DOI: 10.1215/kjm/1250281602
  6. SOME CONVOLUTION INEQUALITIES IN MUSIELAK ORLICZ SPACES
    Akgun, Ramazan · PROCEEDINGS OF THE INSTITUTE OF MATHEMATICS AND MECHANICS · 2016 · Uluslararası · Q4
  7. WEIGHTED VARIABLE EXPONENT GRAND LEBESGUE SPACES AND INEQUALITIES OF APPROXIMATION
    AYDIN İSMAİL, AKGÜN RAMAZAN · Hacettepe Journal of Mathematics and Statistics · 2021 · Uluslararası · Q3 · DOI: 10.15672/hujms.683997
  8. Improved Converse Theorems and Fractional Moduli of Smoothness in Orlicz Spaces
    Akgun, Ramazan · BULLETIN OF THE MALAYSIAN MATHEMATICAL SCIENCES SOCIETY · 2013 · Uluslararası · Q2
  9. Polynomial approximation of functions in weighted Lebesgue and Smirnov spaces with nonstandard growth
    Akgün R. · Georgian Mathematical Journal · 2011 · Uluslararası · Q3 · DOI: 10.1515/GMJ.2011.0022
  10. Polynomial approximation in Bergman spaces
    AKGÜN RAMAZAN · Ukrainian Mathematical Journal · 2016 · Uluslararası · Q3 · DOI: 10.1007/s11253-016-1236-z
  11. Mixed modulus of continuity in the Lebesgue spaces with Muckenhoupt weights and their properties
    Akgün R. · Turkish Journal of Mathematics · 2016 · Uluslararası · Q4 · DOI: 10.3906/mat-1507-92
  12. Gadjieva's conjecture, K-functionals, and some applications in weighted Lebesgue spaces
    Akgün R. · Turkish Journal of Mathematics · 2018 · Uluslararası · Q3 · DOI: 10.3906/mat-1707-69
  13. Fractional order mixed difference operator and its applications in angular approximation
    Akgün R. · Hacettepe Journal of Mathematics and Statistics · 2020 · Uluslararası · Q3 · DOI: 10.15672/hujms.569410
  14. Simultaneous approximation of functions in Orlicz spaces with Muckenhoupt weights
    Akgün R. · Complex Variables and Elliptic Equations · 2016 · Uluslararası · Q3 · DOI: 10.1080/17476933.2016.1142538
  15. Approximation properties of Bernstein singular integrals in variable exponent Lebesgue spaces on the real axis
    AKGÜN RAMAZAN · Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics · 2022 · Uluslararası · DOI: 10.31801/cfsuasmas.1056890
  16. Approximation by polynomials in rearrangement invariant quasi Banach function spaces
    AKGÜN RAMAZAN · Banach Journal of Mathematical Analysis · 2012 · Uluslararası · Q3 · DOI: 10.15352/bjma/1342210164
  17. Exponential approximation in variable exponent Lebesgue spaces on the real line
    Akgün R. · Constructive Mathematical Analysis · 2022 · Uluslararası · Q2 · DOI: 10.33205/cma.1167459
  18. Averaged modulus of smoothness and two-sided monotone approximation in Orlicz spaces
    KOÇ HÜSEYİN,AKGÜN RAMAZAN · Hacettepe Journal of Mathematics and Statistics · 2018 · Uluslararası · Q3 · DOI: 10.15672/HJMS.2017.486
  19. Realization and characterization of modulus of smoothness in weighted Lebesgue spaces
    Akgün R. · St Petersburg Mathematical Journal · 2015 · Uluslararası · Q3 · DOI: 10.1090/spmj/1356
  20. On converse theorems of trigonometric approximation in weighted variable exponent lebesgue spaces
    AkgÜn R. · Banach Journal of Mathematical Analysis · 2011 · Uluslararası · Q3 · DOI: 10.15352/bjma/1313362981
  21. Approximation in Weighted Orlicz Spaces
    RAMAZAN AKGUN, ISRAFİLOV DANİYAL · Mathematica Slovaca · 2011 · Uluslararası · Q3 · DOI: 10.2478/s12175-011-0031-4
  22. APPROXIMATION BY INTERPOLATING POLYNOMIALS IN WEIGHTED SYMMETRIC SMIRNOV SPACES
    Akgun, Ramazan, Koc, Huseyin · HACETTEPE JOURNAL OF MATHEMATICS AND STATISTICS · 2012 · Uluslararası · Q3
  23. Trigonometric approximation of functions in generalized Lebesgue spaces with variable exponent
    AKGÜN RAMAZAN · Ukrainian Mathematical Journal · 2011 · Uluslararası · Q3 · DOI: 10.1007/s11253-011-0485-0
  24. Approximating polynomials for functions of weighted Smirnov Orlicz spaces
    AKGÜN RAMAZAN · journal of function spaces and applications · 2012 · Uluslararası · DOI: 10.1155/2012/982360
  25. Simultaneous and converse approximation theorems in weighted orlicz spaces
    Akgün R. · Bulletin of the Belgian Mathematical Society Simon Stevin · 2010 · Uluslararası · Q3 · DOI: 10.36045/bbms/1267798496
  26. Direct theorems of trigonometric approximation for variable exponent Lebesgue spaces
    AKGÜN RAMAZAN · Revista de la Union Matematica Argentina · 2019 · Uluslararası · Q3 · DOI: 10.33044/revuma.v60n1a08
  27. Approximation and moduli of fractional orders in Smirnov-Orlicz classes
    Akgün R. · Glasnik Matematicki · 2008 · Uluslararası · Q3 · DOI: 10.3336/gm.43.1.09
  28. The refined direct and converse inequalities of trigonometric approximation in weighted variable exponent lebesgue spaces
    Akgün R. · Georgian Mathematical Journal · 2011 · Uluslararası · Q3 · DOI: 10.1515/GMJ.2011.0037
  29. Jackson and inverse inequalities in rearrangement invariant Banach function spaces on Dini smooth domains
    AKGÜN RAMAZAN · AZERBAIJAN JOURNAL OF MATHEMATICS · 2018 · Uluslararası · Q2
  30. Approximation by integral functions of finite degree in variable exponent Lebesgue spaces on the real axis
    AKGÜN RAMAZAN,ghorbanalizadeh arash · Turkish Journal of Mathematics · 2018 · Uluslararası · Q3 · DOI: 10.3906/mat-1605-26
  31. Refined estimates of trigonometric approximation for functions with generalized derivatives in weighted variable exponent Lebesgue spaces
    Akgün R. · Georgian Mathematical Journal · 2012 · Uluslararası · Q3 · DOI: 10.1515/gmj-2012-0041
  32. On Direct Estimates and Approximation Results by the Kantorovich Operators in Weighted Grand Lebesgue Spaces
    Aydin, Ismail, Akgun, Ramazan · DOLOMITES RESEARCH NOTES ON APPROXIMATION · 2026 · Uluslararası · Q2 · DOI: 10.25430/pupj-DRNA-2026-2-3
  33. A Modulus of Smoothness for Some Banach Function Spaces
    AKGÜN RAMAZAN · Ukrainian Mathematical Journal · 2024 · Uluslararası · Q3 · DOI: 10.1007/s11253-023-02253-z
  34. Some inequalities of trigonometric approximation in weighted Orlicz spaces
    Akgün R. · Mathematica Slovaca · 2016 · Uluslararası · Q2 · DOI: 10.1515/ms-2015-0130
  35. Jackson type inequalities for differentiable functions in weighted Orlicz spaces
    AKGÜN RAMAZAN · St Petersburg Mathematical Journal · 2023 · Uluslararası · Q3 · DOI: 10.1090/spmj/1743
  36. Approximation by trigonometric polynomials of functions having (α, ψ)- derivatives in weighted variable exponent Lebesgue spaces
    Akgün R. · Journal of Mathematical Sciences United States · 2012 · Uluslararası · Q3 · DOI: 10.1007/s10958-012-0873-5
  37. EXPONENTIAL APPROXIMATION OF FUNCTIONS IN LEBESGUE SPACES WITH MUCKENHOUPT WEIGHT
    Akgün R. · Problemy Analiza · 2023 · Uluslararası · Q4 · DOI: 10.15393/J3.ART.2023.12250
  38. CHARACTERIZATION OF MIXED MODULUS OF SMOOTHNESS IN WEIGHTED Lp SPACES∗,a
    Akgün R. · Journal of Numerical Analysis and Approximation Theory · 2016 · Uluslararası · DOI: 10.33993/jnaat452-1094
  39. Mixed modulus of smoothness with Muckenhoupt weights and approximation by angle
    AKGÜN RAMAZAN · Complex Variables and Elliptic Equations · 2019 · Uluslararası · Q2 · DOI: 10.1080/17476933.2018.1434626
  40. Some approximation problems for (α, ψ)-differentiable functions in weighted variable exponent lebesgue spaces
    Akgün R. · Journal of Mathematical Sciences United States · 2012 · Uluslararası · Q3 · DOI: 10.1007/s10958-012-0980-3
  41. Improved converse theorems and fractional moduli of smoothness in Orlicz spaces
    Akgün R. · Bulletin of the Malaysian Mathematical Sciences Society · 2012 · Uluslararası · Q2
  42. Approximation in Smirnov Orlicz Classes
    İSRAFİLZADE DANİYAL,OKTAY YÖNET BURÇİN,AKGÜN RAMAZAN · Glasnik Matematicki · 2005 · Uluslararası
  43. МОДУЛЬ ГЛАДКОСТI ДЛЯ ДЕЯКИХ БАНАХОВИХ ФУНКЦIОНАЛЬНИХ ПРОСТОРIВ
    AKGÜN RAMAZAN · Ukrains’kyi Matematychnyi Zhurnal · 2023 · Uluslararası · DOI: 10.3842/umzh.v75i8.970
  44. Jackson type inequalities for differentiable functions in weighted Orlicz spaces
    AKGÜN RAMAZAN · Algebra i Analiz · 2022 · Uluslararası
  45. A modulus of smoothness for some Banach function spaces
    AKGÜN RAMAZAN · Ukrains’kyi Matematychnyi Zhurnal · 2023 · Uluslararası
  46. Characterization of mixed modulus of smoothness in weighted Lp spaces
    AKGÜN RAMAZAN · Journal of Numerical Analysis and Approximation Theory · 2016 · Uluslararası
  47. Mixed modulus of continuity in Lebesgue spaces with Muckenhoupt weights
    AKGÜN RAMAZAN · Turkish Journal of Mathematics · 2016 · Uluslararası · Q4
  48. Polynomial approximation in weighted Lebesgue spaces
    AKGÜN RAMAZAN · East journal on Approximations · 2011 · Uluslararası
  49. Sharp Jackson and converse theorems of trigonometric approximation in weighted Lebesgue spaces
    AKGÜN RAMAZAN · Proceedings of A. Razmadze Mathematical Institute · 2010 · Uluslararası
  50. Approximation of Functions of Weighted Lebesgue and Smirnov Spaces
    AKGÜN RAMAZAN · Mathematica (Cluj) · 2012 · Uluslararası
  51. Approximation by polynomials and rational functions in weighted rearrangement invariant spaces
    DANİYAL İSRAFİLOV,AKGÜN RAMAZAN · Journal of Mathematical Analysis and Applications · 2008 · Uluslararası · Q1 · DOI: doi:10.1016/j.jmaa.2008.05.040
  52. Approximation and moduli of fractional order in Smirnov Orlicz classes
    AKGÜN RAMAZAN,DANIYAL ISRAFILOV · Glasnik Matematicki · 2008 · Uluslararası
  53. Some notes on trigonometric approximation of alpha psi differentiable functions in weighted variable exponenet Lebesgue spaces Vol 161 2013 15 23
    AKGÜN RAMAZAN,VAKHTANG KOKILASHVILI · Proceedings of Andrea Razmadze Mathematical Institute · 2013 · Uluslararası
  54. Improved converse theorems and fractional moduli of smoothness in Orlicz spaces Vol 36 No 1 2013 49 62
    AKGÜN RAMAZAN · Bulletin Malaysian Mathematical Sciences Society (2) · 2013 · Uluslararası
  55. REALIZATION AND CHARACTERIZATION OF MODULUS OF SMOOTHNESS IN WEIGHTED LEBESGUE SPACES
    AKGÜN RAMAZAN · algebra i analiz · 2014 · Uluslararası
  56. The refined estimates of trigonometric approximation for functions with generalized derivatives in weighted variable exponent Lebesgue spaces
    AKGÜN RAMAZAN,vakhtang kokilashvili · Georgian Mathematical Journal · 2012 · Uluslararası · Q3
  57. Approximation by interpolating polynomials in weighted symmetric Smirnov spaces Volume 41 5 2012 643 649
    R Akgün, H Koç · Hacettepe journal of mathematics and statistics · 2012 · Uluslararası
  58. Polynomial approximation in weighted Smirnov Orlicz space
    R Akgün, D M İsrafilov · Proceedings of Andrea Razmadze Mathematical Institute · 2005 · Uluslararası
  59. Inequalities for one sided approximation in Orlicz spaces
    AKGÜN RAMAZAN · Hacettepe journal of mathematics and statistics · 2011 · Uluslararası · Q3
  60. Approximation by interpolating polynomials in Smirnov Orlicz class
    R Akgün, D M İsrafilov · Journal of the Korean Mathematical Society · 2006 · Uluslararası · Q2 · DOI: 10.4134/JKMS.2006.43.2.413

Bildiriler (8)

  1. Modulus of smoothness in Bergman spaces
    AKGÜN RAMAZAN · ICAS2017, 12-15 September, YT University, Istanbul, Turkey. Konferans web sayfası: http://icas2017conference.com · 2017 · Özet bildiri
  2. Realization and angular approximation in weighted Lebesgue spaces
    AKGÜN RAMAZAN · ICAS2017, 12-15 September, YT University, Istanbul, Turkey. Konferans web sayfası: http://icas2017conference.com · 2017 · Özet bildiri
  3. Convolution Inequalities and Musielak Orlicz spaces
    AKGÜN RAMAZAN · International Conference on Applied Analysis and Mathematical Modeling, ICAAMM17, July 3-7, 2017, Istanbul-Turkey. Konferans web sayfası: http://ntmsci.com/Conferences/ICAAMM2017 · 2017 · Özet bildiri
  4. Weighted Orlicz Spaces And Trigonometric Approximation of Functions
    AKGÜN RAMAZAN · , International Conference on Applied Analysis and Mathematical Modeling, ICAAMM17, July 3-7, 2017, Istanbul-Turkey. Konferans web sayfası: http://ntmsci.com/Conferences/ICAAMM2017 · 2017 · Özet bildiri
  5. Mixed modulus of continuity in the lebesgue spaces with muckenhoupt weights
    AKGÜN RAMAZAN · , International Conference “Theory of approximation of functions and its applications”, Sloviansk, 28 may-03 June 2017, Ukraine · 2017 · Özet bildiri
  6. Realization functional in lebesgue spaces with muckenhoupt weights
    AKGÜN RAMAZAN · , International Conference “Theory of approximation of functions and its applications”, Sloviansk, 28 may-03 June 2017, Ukraine. Konferans web sayfası: http://www.slavdpu.dn.ua/stepconf2017/en/index.html · 2017 · Özet bildiri
  7. Approximation by polynomials in Bergman spaces International conference on Function Spaces and Approximation Theory dedicated to the 110th anniversary of S M Nikol skii
    AKGÜN RAMAZAN · Steklov Mathematical Institute of RAS · 2015 · Özet bildiri
  8. Approximation by partial sum of the trigonometric Fourier series in Orlicz spaces
    AKGÜN RAMAZAN · VII International symposium "Fourier series and their applications", 27 may 2014-02 june 2014, Abrau dyurso, Novorrosisyk, Camp Moryak, Russia. · 2014 · Özet bildiri

Projeler (6)

  1. Ağırlıklı Lebesgue uzayı ve açısal yaklaşım(Weighted Lebesgue spaces and approximation by angle)
    Yükseköğretim Kurumları tarafından destekli bilimsel araştırma projesi · Tamamlandı · 2016 - 2017
  2. Jackson tipli polinomlarla monoton çift taraflı yaklaşım(Jackson inequalities of monotone two sided approximation)
    Yükseköğretim Kurumları tarafından destekli bilimsel araştırma projesi · Tamamlandı · 2017 - 2017
  3. Orlicz Uzaylarında Polinomlarla Yaklaşım
    Yükseköğretim Kurumları tarafından destekli bilimsel araştırma projesi · Tamamlandı · 2014 - 2015
  4. Ağırlıklı Lebesgue uzaylarında karma düzgünlük modülü ve yakalaşım problemleri
    Yükseköğretim Kurumları tarafından destekli bilimsel araştırma projesi · Tamamlandı · 2014 - 2015
  5. Smirnov Orlicz Uzaylarında Yaklaşım Problemleri
    Yükseköğretim Kurumları tarafından destekli bilimsel araştırma projesi · Tamamlandı · 2006 - 2007
  6. Approximation by polynomial in Bergman spaces
    TÜBİTAK PROJESİ · Tamamlandı · 2012 - 2013

Yönetilen Tezler (9)

  1. Karma lebesgue uzaylarında yaklaşım
    ALİ KAYA · Yüksek Lisans · 2026 · Tamamlandı
  2. Gauss Weierstrass İntegral Operatörü ile Yaklaşım
    ÇAĞRI TANRIÖVER · Yüksek Lisans · 2025 · Tamamlandı
  3. Yaklaşım Teorisi Problemleri ve Diyofantin Yaklaşımı
    ABDULLAH KAYA · Yüksek Lisans · 2022 · Devam Ediyor
  4. Çok değişkenli fonksiyonlar ve yaklaşım problemleri
    MERVE NUR BAĞCI · Yüksek Lisans · 2021 · Tamamlandı
  5. Karma Lebesgue uzaylarında karma düzgünlük modülü ile yaklaşım
    UĞUR YİĞİTASLAN · Yüksek Lisans · 2021 · Tamamlandı
  6. Orlıcz uzaylarında polinomlarla yaklaşım
    HÜSEYİN KOÇ · Doktora · 2015 · Tamamlandı
  7. Lebesgue uzaylarında diferansiyellenebilir fonksiyonlara yaklaşım problemleri
    HACI BEKİR MEYDAN · Yüksek Lisans · 2015 · Tamamlandı
  8. Ağırlıklı simetrik smirnov uzaylarında poisson polinomlarıyla yaklaşım
    ÖMER KAMIŞ · Yüksek Lisans · 2012 · Tamamlandı
  9. Kompleks interpolasyon polinomlarının simetrik fonksiyon uzaylarında yakınsaklığı
    HÜSEYİN KOÇ · Yüksek Lisans · 2011 · Tamamlandı

Tezler (2)

  1. L2(G) uzayında polinomlarla yaklaşım
    1999 - 2003
  2. Smirnov-Orlicz uzaylarında polinomlarla yaklaşım
    2007 - 2007

Eğitim Bilgileri (3)

  1. Lisans - MATEMATİK BÖLÜMÜ
    BALIKESİR ÜNİVERSİTESİ · 1995 - 1999
  2. Yüksek Lisans - MATEMATİK (YL) (TEZLİ)
    BALIKESİR ÜNİVERSİTESİ · 1999 - 2003
  3. Doktora - MATEMATİK (DR)
    BALIKESİR ÜNİVERSİTESİ · 2003 - 2007