1. Yaklaşım teorisinde bazı ekstremal problemler Danışman: Dr. Fahreddin Abdullayev, Mersin Üniversitesi, Fen Bilimleri Enstitüsü, Matematik Anabilim Dalı, Mersin, Türkiye, 2008.

1. Alan üzerinde ortogonal polinomların bazı özellikleri Danışman: Dr. Fahreddin Abdullayev, Mersin Üniversitesi, Fen Bilimleri Enstitüsü, Matematik Anabilim Dalı, Mersin, Türkiye, 2004.

2024
9. DEĞER, U.; ABDULLAYEV, F. Bernstein-Nikolskii-Markov-type inequalities for algebraic polynomials in a weighted Lebesgue space in regions with cusps. TURKİSH JOURNAL OF MATHEMATİCS, 2024, 48, -. 1000 + 0

8. DEĞER, U.; ABDULLAYEV, F. On the growth of derivatives of algebraic polynomials in regions with a piecewise quasicircle with zero angles. FİLOMAT, 2024, 38, -. 1000 + 0

7. Bayındır, H.; DEĞER, U. A note on approximation by some product means in variable exponent Lebesgue spaces. MAEJO INTERNATİONAL JOURNAL OF SCİENCE AND TECHNOLOGY, 2024, 18, 37-45. 1000 + 0

6. DEĞER, U.; ABDULLAYEV, F. "On the behavior of derivatives of algebraic polynomials in regions with piecewise quasi smooth boundary having cusps. FİLOMAT, 2024, 38, -. 1000 + 0

2018
5. DEĞER, U.; Bayındır, H. APPROXIMATION BY NORLUND AND RIESZ TYPE DEFERREDCESARO MEANS IN THE SPACE H. MİSKOLC MATHEMATİCAL NOTES, 2018, 19, 823-833. 1000 + 0

2016
4. Deger, U. A Note on the Degree of Approximation by Matrix Means in the Generalized Holder Metric. UKRAINIAN MATHEMATICAL JOURNAL, 2016, 68, 545-556. 1000 + 0

https://dx.doi.org/10.1007/s11253-016-1240-3

2015
3. Deger, U.; Kucukaslan, M. A generalization of deferred Cesaro means and some of their applications. JOURNAL OF INEQUALITIES AND APPLICATIONS, 2015, 1-16. 1000 + 0

https://dx.doi.org/10.1186/s13660-014-0532-0

2014
2. KÜÇÜKASLAN, M.; DEĞER, U.; Oleksiy, D. On the statistical convergence of metric valued sequences. UKRAİNİAN MATHEMATİCAL JOURNAL, 2014, 66, 796-805. 1000 + 0

10.1007/s11253-014-0974-z

2009
1. Abdullayev, F.; Deger, U. On the orthogonal polynomials with weight having singularities on the boundary of regions in the complex plane. BULLETIN OF THE BELGIAN MATHEMATICAL SOCIETY-SIMON STEVIN, 2009, 16, 235-250. 1000 + 22

Alıntılanma Sayısı: 2

2016
5. Değer, U. On approximation to functions in the $W(L^{p}, \xi(t))$ class by a new matrix mean. NOVİ SAD JOURNAL OF MATHEMATİCS, 2016, 46, 1-14. 200 + 0

2015
4. Değer, U.; Kaya, M. Cesaro alt metodu ile yaklaşım üzerine. PALESTİNE JOURNAL OF MATHEMATİCS, 2015, 4 , 44-56. 200 + 0

http://pjm.ppu.edu/

2012
3. Küçükaslan, M.; Değer, U. Metrik değerli dizilerin istatistiksel sınırlılığı üzerine. EUROPEAN JOURNAL OF PURE AND APPLİED MATHEMATİCS, 2012, 5, 174-186. 200 + 6

2008
2. Değer, U. Zygmund toplamları ile $\overline{\psi}$-integrallerinin sınıfındaki fonksiyonlara yaklaşım. INTERNATİONAL JOURNAL OF CONTEMPORARY MATHEMATİCAL SCİENCES, 2008, 3, 1499-1510. 200 + 0

2007
1. Değer, U. $C^{overline{\psi}}_{\infinity}$ sınıflarında Zygmund toplamı ile yaklaşım. PROBLEMS OF THE THEORY OF APPROXİMATİON OF FUNCTİONS AND RELATED QUESTİONS. COLLECTİON OF PAPERS OF THE INSTİTUTE OF MATHEMATİCS OF NAS OF UKRAİNE, 2007, T4, 92-107. 200 + 0

2018
6. DEĞER, U.; Bayındır, H. On the Degree of Approximation by theWoronoi-Norlund and Riesz Type Means in the GHM. AZERBAİJAN JOURNAL OF MATHEMATİCS, 2018, , -. 300 + 0

5. Değer, U.; Bayındır, H. On the Degree of Approximation by the Woronoi-Norlund and Riesz Type Means in the GHM. AZERBAİJAN JOURNAL OF MATHEMATİCS, 2018, 8, 00-00. 300 + 0

4. DEĞER, U. On approximation by Nörlund and Riesz submethods in variable exponent lebesgue spaces. COMMUN.FAC.SCİ.UNİV.ANK.SERİES A1, 2018, 67, 46-59. 300 + 0

2017
3. Değer, U.; Bayındır, H. ON TRIGONOMETRIC APPROXIMATION BY DEFERRED-NORLUND PRODUCT MEANS IN LIPSCHITZ CLASS. JOURNAL OF MATHEMATİCAL ANALYSİS, 2017, 8 , 70-78. 300 + 0

2016
2. Deger, U. On Approximation by Matrix Means of the Multiple Fourier Series in the Holder Metric. KYUNGPOOK MATHEMATICAL JOURNAL, 2016, 56, 57-68. 300 + 0

https://dx.doi.org/10.5666/KMJ.2016.56.1.57

2012
1. Deger, U.; Dagadur, I.; Kucukaslan, M. Approximation by trigonometric polynomials to functions in L_p-norm. PROCEEDİNGS OF THE JANGJEON MATHEMATİCAL SOCİETY, 2012, 15, 203-213. 300 + 8

2023
2. YASEMİN GÖLBOL, S.; DEĞER, U. On a solution of the Kolmogorov-Nikol’skii problem in class of ψ- integrals . PALESTİNE JOURNAL OF MATHEMATİCS, 2023, 12, 75-91. 100 + 0

1. YASEMİN GÖLBOL, S.; DEĞER, U. On the speed of approximation in the classes of ψ̅-integrals. JOURNAL OF CLASSİCAL ANALYSİS, 2023, 21, 9-27. 100 + 0

10.7153/jca-2023-21-02

2018
1. YASEMİN GÖLBOL, S.; ESİ, A.; DEĞER, U. On some double sequence spaces of interval numbers. PROYECCİONES JOURNAL OF MATHEMATİCS, 2018, 37, 535-546. 100 + 0

2008
1. Değer, U. Zygmund toplamları ile yaklaşımda ektstremal problem üzerine bir not. CUMHURİYET ÜNİVERSİTESİ FEN BİLİMLERİ DERGİSİ, 2008, 29, 19-25. 100 + 0

23. Yasemin Gölbol, S.; Değer, U., The degree of approximation by generalized Zygmund sums in the classes C_{\infty}^{\overline{\psi}}. 5th International IFS and Contemporary Mathematics Conference, 2018-09-05, 2018-09-09, Kahramanmaraş, Türkiye, 2018. 100

22. Yasemin Gölbol, S.; Değer, U., Approximation to Functions of the Classes ᴪ-integrals by Generalized Zygmund Sums. International Conference on Mathematics, 2018-07-03, 2018-07-06, İstanbul, Türkiye, 2018. 100

http://raims.org/files/Abstract_Book_2018.pdf

21. DEĞER, U.; YÜKSEL, E., Approximation by the matrix submethods of double Fourier series in Lipschitz class. Mathematical Analysis, Differential Equation & Applications MADEA 8, 2018-06-17, 2018-06-23, Cholpon-Ata (Issyk-Kul), Kırgızistan, 2018. 100

https://fisfm.education/content/files/52/o3/52o3opoieqwybkcewlnchfqz2zlafc5v.pdf

20. Yüksel, E.; Değer, U., The degree of approximation by the submethods of double Fourier series in Lipschitz class. Second Internationational Mediterranean Science and Engineering Congress, 2017-10-25, 2017-12-27, Adana, Türkiye, 2017. 100

19. Yasemin Gölbol, S.; Değer, U., $C_{\infty}^{\underline{\psi}}$ sınıflarında Nörlund ortalamaları ile yaklaşım. Second international Mediterranean Science and Engineering Congress, 2017-10-25, 2017-10-27, Adana, Türkiye, 2017. 100

18. DEĞER, U.; BAYINDIR, H., Approximation by Deferred-Nörlund Product Means in Lp. IFSCOM2017, 2017-10-25, 2017-10-27, Mersin, Türkiye, 2017. 100

17. Değer, U.; Yasemin Gölbol, S., $C_{\infty}^{\overline{\psi}}$ sınıflarında Riesz ortalamalarıyla yaklaşım. IFSCOM 2017, 2017-05-03, 2017-05-07, Mersin, Türkiye, 2017. 100

16. Bayındır, H.; Değer, U., On trigonometric approximation by deferred-Nörlund (D.Np) means in Lip\alpha class. 2nd International Conference on Analysis and its Applications, 2016-07-12, 2016-07-15, Kırşehir, Türkiye, 2016. 100

15. Yasemin Gölbol, S.; Değer, U.; Esi, A., Some Double Sequence Spaces of Interval Numbers. 2nd International Conference on Analysis and its Applications, 2016-07-12, 2016-07-15, Kırşehir, Türkiye, 2016. 100

14. Bayındır, H.; Değer, U., On the degree of approximation by Cesaro submethod in the space H_{p}^{w}. Mathematical Analysis, Differential Equations and their Applications, 2015-09-08, 2015-09-13, Baku, Azerbaycan, 2015. 100

13. Değer, U., On Approximation by Matrix Means of the Multiple Fourier Series in the Hölder Metric. The Eight Congress of Romanian Mathematicians, 2015-06-26, 2015-07-01, Iasi, Romanya, 2015. 100

12. Bayındır, H.; Değer, U., Approximation by generalized deferred Cesaro means in the space $H_{p}^{\omega}$. The Eight Congress of Romanian Mathematicians, 2015-06-26, 2015-07-01, Iasi, Romanya, 2015. 100

11. Yasemin Gölbol, S.; Değer, U., On Some Spaces of Sequences of Interval Numbers. The Eight Congress of Romanian Mathematicians, 2015-06-26, 2015-07-01, Iasi, Romanya, 2015. 100

10. Değer, U., On Approximation by Cesaro Submethods in Generalized Lebesgue Spaces Lp(x). V Annual Conference of the Georgian Mathematical Union, 2014-09-08, 2014-09-12, Batum, Gürcistan, 2014. 100

9. Bayındır, H.; Değer, U., Approximation by Cesaro Submethod in Generalized Hölder Metric. V Annual Conference of the Georgian Mathematical Union, 2014-09-08, 2014-09-12, Batum, Gürcistan, 2014. 100

8. Değer, U., On approximation by trigonometric polynomials to functions in generalized Hölder metric. International conference on "Mathematical Analysis, Differential Equations and their applications"(MADEA 2012), 2012-09-04, 2012-09-09, Mersin, Türkiye, 2012. 100

7. Küçükaslan, M.; Değer, U.; Dovgoshey, O., On statistical convergence of metric valued sequences. International conference on "Mathematical Analysis, Differential Equations and their applications"(MADEA 2012), 2012-09-04, 2012-09-09, Mersin, Türkiye, 2012. 100

6. Değer, U., On degree of approximation by Fourier series in generalized Hölder metric. International conference Theory of Approximation of Functions and its Applications dedicated to the 70th Anniversary of Corresponding Member of NAS of Ukraine, Professor A. I. STEPANETS(1942-2007), 2012-05-28, 2012-06-03, Kamianets-Podilski, Ukrayna, 2012. 100

5. Değer, U.; Dağadur, İ.; Küçükaslan, M., On Approximation by Trigonometric Polynomials to Functions in L_{p} Norm. Int. Sci. Conf. Mathematical Analysis, Differential Equations and Their Applications, 2010-09-15, 2010-09-20, Sunny Beach, Bulgaristan, 2010. 100

4. Değer, U., Approximation by Zygmund Sums in classes of $C_{\infty}^{\overline{\psi}}$. Int. Sci. Conf. II. Turkish World Mathematics Symposium, 2007-07-04, 2007-07-07, Sakarya, Türkiye, 2007. 100

3. Değer, U., Approximation by Fejér Sums in classes of $C_{\infty}^{\overline{\psi}}$. Int. Sci. Conf."Mathematical Analysis, Differential Equations and Their Applications, 2006-09-18, 2006-09-23, Uzhgorod, Ukrayna, 2006. 100

2. Abdullayev, F.; Değer, U., On Some Properties of Orthogonal Polynomials over an Area. International conference on mathematics and mechanics devoted to the 50-th anniversary from birthday of member of the correspondent of NASA, Proffesor I. T. Mamedov, 2005-05-11, 2005-05-13, Bakü, Azerbaycan, 2005. 100

1. Abdullayev, F.; Değer, U., Some properties of the orthogonal polynomials over area in domains of the complex plane. Int. Workshop "Analysis and its applications", 2004-09-07, 2004-09-11, Mersin, Türkiye, 2004. 100

1. Değer, U., On approximation to functions in W(L^{p};\ksi(t)) class by matrix mean. Mathematical Analysis, Differential Equations and their Applications, 2015-09-08, 2015-09-13, Baku, Azerbaycan, 2015. 50

1. Değer, U.; Kaya, M., On trigonometric approximation by Cesaro submethod. XXVI. National Mathematical Symposium, 2013-09-04, 2013-09-07, Diyarbakır, Türkiye, 2013. 50

1. DEĞER, U., 12. Sınıf Matematik . Taslak Ders Kitabı İnceleme Paneli , 2015-10-19, 2015-10-19, Ankara, Türkiye, 2015. 25

http://meb.gov.tr

1. KTMU-BAP- 20t8.F8E.05, , Proje No: , 3860 USD, Araştırmacı, 2018,Tamamlandı. 0

2. y -integrallerinin bazı sınıflarında yaklaşım özelliklerinin belirlenmesi , BAP, Proje No: 2017-1-TP3-2251, 7000 TL, Yürütücü, 2019,Tamamlandı. 100

1. Lipschitz Sınıfında Katlı Fourier Serilerinin Alt Metotları ile Yaklaşımın Derecesinin Belirlenmesi, BAP, Proje No: 2017-2-TP2-2649, 5551 TL, Yürütücü, 2018,Tamamlandı. 100

1. Yaklaşım Teorisinde Ekstremal Problemler, BAP, Proje No: BAP-FBE MB (UD) 2007-1 DR , 0 TL, Araştırmacı, 2008,Tamamlandı. 50

1. Lipschitz sınıfından olan fonksiyonlara trigonometrik polinomlar ile yaklaşım, BAP, Proje No: BAP-FBE MB (MK) 2012-2 YL , 9516 TL, Danışman (Yürütücü Gerçek Kişi), 2014,Tamamlandı. 0

1. Gezen Bilim Yollarda, TÜBİTAK, Proje No: , EUR, Eğitmen, 2018,Tamamlandı. 0

2. Musa Kaya, Lipschitz sınıfından olan fonksiyonlara trigonometrik polinomlar ile yaklaşım, Fen Bilimleri Enstitüsü, Mersin Üniversitesi, Tamamlandı. 200

1. Hilal Bayındır, Genelleştirilmiş Hölder Metriğinde Trigonometrik Polinomlar ile Yaklaşım, Fen Bilimleri Enstitüsü, Mersin Üniversitesi, 2015, Tamamlandı. 200

2. Hilal Bayındır, Tez aşamasında, Fen Bilimleri Enstitüsü, Mersin Üniversitesi, Devam ediyor. 400

1. Sibel Yasemin Gölbol, PSİ İNTEGRALLERİNİN BAZI SINIFLARINDA YAKLAŞIM ÖZELLİKLERİNİN BELİRLENMESİ, Fen Bilimleri Enstitüsü, Mersin Üniversitesi, 2019, Tamamlandı. 400

1. EUROPEAN JOURNAL OF PURE AND APPLIED MATHEMATICS , [ 2019 : 1 ] . 0

2. JOURNAL OF MATHEMATICAL EXTENSION , [ 2019 : 1 ] . 0

3. TURKISH JOURNAL OF MATHEMATICS , [ 2021 : 1 ] . 5

1. Würzburg Üniversitesi, Matematik Bölümü, Almanya , 2013-02-02 - 2013-08-31, Würzburg, Almanya.

1. Würzburg Üniversitesi, Matematik Bölümü, Würzburg, Almanya , 2012-06-07 - 2012-09-02, Würzburg, Almanya.

2. Katholische Universitesi, Eichstätt- Ingolstadt, Almanya , 2010-06-05 - 2010-06-12, Eichstätt- Ingolstadt, Almanya.

3. Ukrayna Bilimler Akademisi Matematik Enstitüsü, Kiev-UKRAYNA , 2007-04-05 - 2007-06-23, Kiev, Ukrayna.

4. Ukrayna Bilimler Akademisi Matematik Enstitüsü, Kiev-UKRAYNA , 2005-09-07 - 2006-05-06, Kiev, Ukrayna.

1. Türk Matematik Derneği , Üye No: 33, Türkiye, 2002-12-01-Devam ediyor.