Asymptotic Growth of Moduli of m-th Derivatives of Algebraic Polynomials in Weighted Bergman Spaces on Regions Without Zero Angles

Axioms, vol. , no. , pp. –

Uğur Değer, Meerim Meerim Imashkyzy, Fahreddin Abdullayev

2025 Hakemli SCI-Expanded Q1 Link
A note on approximation by some product means in variable exponent Lebesgue spaces

MAEJO INTERNATIONAL JOURNAL OF SCIENCE AND TECHNOLOGY, vol. 18, no. 1, pp. 37–45

Hilal Bayındır, Uğur Değer

2024 Hakemli SCI-Expanded Q3 1 atıf Link
Bernstein-Nikol'skii-Markov-type inequalities for algebraic polynomials in a weighted Lebesgue space in regions with cusps

TURKISH JOURNAL OF MATHEMATICS, vol. 48, no. 4, pp. 713–733

Uğur Değer, Fahreddin Abdullayev

2024 Hakemli SCI Q2 Link
On the growth of derivatives of algebraic polynomials in regions with a piecewise quasicircle with zero angles

FILOMAT, vol. 38, no. 10, pp. 3493–3522

Uğur Değer, Fahreddin Abdullayev

2024 Hakemli SCI Q3 1 atıf Link
On the behavior of derivatives of algebraic polynomials in regions with piecewise quasismooth boundary having cusps

FILOMAT, vol. 38, no. 10, pp. 3467–3492

Uğur Değer, Fahreddin Abdullayev

2024 Hakemli SCI Q3 1 atıf Link
On the speed of approximation in the classes of ψ̅-integrals

Journal of Classical Analysis, vol. 21, no. 1, pp. 9–27

Sibel Yasemin Gölbol, Uğur Değer

2023 Hakemli Scopus Link
On a solution of the Kolmogorov-Nikol’skii problem in class of ψ- integrals

Palestine Journal of Mathematics, vol. 12, no. 4, pp. 75–91

Sibel Yasemin Gölbol, Uğur Değer

2023 Hakemli Scopus Link
APPROXIMATION IN THE WEIGHTED GENERALIZED LIPSCHITZ CLASS BY DEFERRED CESÁRO-MATRIX PRODUCT SUBMETHODS

Palestine Journal of Mathematics, vol. 10, no. 2, pp. 740–750

Sibel Yasemin Gölbol, Uğur Değer

2021 Hakemli Scopus Link
On some double sequence spaces of interval numbers

Proyecciones Journal of Mathematics, vol. 37, no. 3, pp. 535–546

Sibel Yasemin Gölbol, Ayhan Esi, Uğur Değer

2018 Hakemli Scopus Link
ON APPROXIMATION BY NORLUND AND RIESZ SUBMETHODS IN VARIABLE EXPONENT LEBESGUE SPACES

COMMUNICATIONS FACULTY OF SCIENCES UNIVERSITY OF ANKARA-SERIES A1 MATHEMATICS AND STATISTICS, vol. 67, no. 1, pp. 46–59

Uğur Değer

2018 Hakemli ESCI: Emerging Sources Citation Index 1 atıf Link
On the Degree of Approximation by the Woronoi-Norlund and Riesz Type Means in the GHM

AZERBAIJAN JOURNAL OF MATHEMATICS, vol. 8, no. 2, pp. 122–141

Uğur Değer, Hilal Bayındır

2018 Hakemli ESCI: Emerging Sources Citation Index 1 atıf Link
APPROXIMATION BY NORLUND AND RIESZ TYPE DEFERRED CESARO MEANS IN THE SPACE HP(ω)

MISKOLC MATHEMATICAL NOTES, vol. 19, no. 2, pp. 823–833

Uğur Değer, Hilal Bayındır

2018 Hakemli SCI-Expanded Q2 2 atıf Link
On trigonometric approximation by Deferred-Nörlund product means in Lipschitz class

Journal of Mathematical Analysis, vol. 8, no. 1, pp. 70–78

Uğur Değer, Hilal Bayındır

2017 Hakemli ESCI: Emerging Sources Citation Index Link
On Approximation by Matrix Means of the Multiple Fourier Series in the Holder Metric

KYUNGPOOK MATHEMATICAL JOURNAL, vol. 56, no. 1, pp. 57–68

Uğur Değer

2016 Hakemli Mathematical Reviews, Scopus, Zentralblatt für Mathematik, Excellence in Research for Australia(ERA)... 1 atıf Link
On approximation to functions in the W Lp t class by a new matrix mean

Novi Sad Journal of Mathematics, vol. 46, no. 1, pp. 1–14

Uğur Değer

2016 Hakemli Mathematical Reviews, Zentralblatt für Mathematik, Referativnyi Zhurnal, Current Mathematical Public... Link
A Note on the Degree of Approximation by Matrix Means in the Generalized Holder Metric

UKRAINIAN MATHEMATICAL JOURNAL, vol. 68, no. 4, pp. 545–556

Uğur Değer

2016 Hakemli SCI-Expanded 6 atıf Link
A generalization of deferred Cesaro means and some of their applications

JOURNAL OF INEQUALITIES AND APPLICATIONS, vol. 2015, no. 1, pp. 1–15

Uğur Değer, Mehmet Küçükaslan

2015 Hakemli SCI-Expanded 8 atıf Link
On the approximation by Cesáro submethod

Palestine Journal of Mathematics, vol. 4, no. 1, pp. 44–56

Uğur Değer, Musa Kaya

2015 Hakemli Mathematical Reviews, ZentralBlatt Math
On the Statistical Convergence of Metric-Valued Sequences

UKRAINIAN MATHEMATICAL JOURNAL, vol. 66, no. 5, pp. 796–805

Mehmet Küçükaslan, Uğur Değer, Dovgoshey Oleksiy

2014 Hakemli SCI-Expanded 11 atıf Link
On statistical boundedness of metric valued sequences

European Journal of Pure and Applied Mathematics (elektronik), vol. 5, no. 2, pp. 174–186

Mehmet Küçükaslan, Uğur Değer

2012 Hakemli Mathematical Reviews, Zentralblatt fur Mathematik 1 atıf Link
Approximation by trigonometric polynomials to functions in Lp norm

Proceedings of the Jangjeon Mathematical Society, vol. 15, no. 2, pp. 203–213

Uğur Değer, İlhan Dağadur, Mehmet Küçükaslan

2012 Hakemli Mathematical Reviews, Web Zentralblatt fur Mathematik... Link
On the orthogonal polynomials with weight having singularity on the boundary of regions of the complex plane

Bulletin of Belgian Mathematical Society, vol. 16, no. 2, pp. 235–250

Fahreddin Abdullayev, Uğur Değer

2009 Hakemli SCI-Expanded 6 atıf Link
Approximation to functions from the classes of overline psi integrals by the Zygmund Sums

International Journal of Contemporary Mathematical Sciences, vol. 3, no. 31, pp. 1499–1510

Uğur Değer

2008 Hakemli Zentralblatt fur Mathematik Link
Approximation by Zygmund sums in the classes C overline psi infinity

Problems of the Theory of Approximation of Functions and Related Questions. Collection of Papers of the Institute of Mathematics of NAS of Ukraine, vol. 4, no. 1, pp. 92–107

Uğur Değer

2007 Hakemli Zentralblatt fur Mathematik Link
A note on extremal problem in approximation by Zygmund sums

Cumhuriyet Üniversitesi Fen Bilimleri Dergisi, vol. 29, no. 2, pp. 19–25

Uğur Değer

2008 Hakemli Directory of Open Access Journals, Directory of Research Journal Indexing, Google Scholar, Index Cop... Link
ON TRIGONOMETRIC APPROXIMATION BY DEFERRED-NORLUND (Dab.Np) PRODUCT MEANS IN LIPSCHITZ CLASS

JOURNAL OF MATHEMATICAL ANALYSIS, vol. 8, no. 1, pp. 70–78

Deger Ugur, Bayindir Hilal

2017 1 atıf Link