Oktay Duman

2.3k total citations
113 papers, 1.7k citations indexed

About

Oktay Duman is a scholar working on Statistics and Probability, Numerical Analysis and Applied Mathematics. According to data from OpenAlex, Oktay Duman has authored 113 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 99 papers in Statistics and Probability, 78 papers in Numerical Analysis and 52 papers in Applied Mathematics. Recurrent topics in Oktay Duman's work include Approximation Theory and Sequence Spaces (98 papers), Mathematical Approximation and Integration (56 papers) and Iterative Methods for Nonlinear Equations (34 papers). Oktay Duman is often cited by papers focused on Approximation Theory and Sequence Spaces (98 papers), Mathematical Approximation and Integration (56 papers) and Iterative Methods for Nonlinear Equations (34 papers). Oktay Duman collaborates with scholars based in Türkiye, United States and Cyprus. Oktay Duman's co-authors include Mehmet Ali Özarslan, Cihan Orhan, Esra Erkuş-Duman, George A. Anastassiou, Canan Çelik, Kami̇l Demi̇rci̇, Mohammad Kazim Khan, H. M. Srivastava, H. Merdan and Biancamaria Della Vecchia and has published in prestigious journals such as SHILAP Revista de lepidopterología, Fuzzy Sets and Systems and Journal of Mathematical Analysis and Applications.

In The Last Decade

Oktay Duman

106 papers receiving 1.5k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Oktay Duman Türkiye 23 1.4k 1.1k 844 189 186 113 1.7k
J. Vasundhara Devi United States 18 375 0.3× 641 0.6× 1.6k 1.9× 78 0.4× 45 0.2× 48 2.0k
G. Papaschinopoulos Greece 22 282 0.2× 176 0.2× 1.3k 1.5× 1.2k 6.6× 41 0.2× 86 1.6k
Vijay Gupta India 28 2.7k 1.9× 1.9k 1.8× 1.8k 2.2× 3 0.0× 189 1.0× 251 3.0k
Frank Neubrander United States 10 91 0.1× 310 0.3× 1.4k 1.6× 119 0.6× 17 0.1× 21 2.1k
Vasile Lupulescu Romania 18 819 0.6× 108 0.1× 953 1.1× 41 0.2× 74 0.4× 57 1.3k
N. A. Perestyuk Ukraine 8 79 0.1× 720 0.7× 1.5k 1.8× 254 1.3× 6 0.0× 42 2.0k
Hüseyin Budak Türkiye 28 296 0.2× 294 0.3× 2.9k 3.5× 17 0.1× 212 1.1× 337 3.1k
S. Sivasundaram United States 16 58 0.0× 561 0.5× 1.0k 1.2× 81 0.4× 16 0.1× 57 1.4k
Heinrich P. Lotz United States 9 140 0.1× 84 0.1× 560 0.7× 75 0.4× 15 0.1× 19 973

Countries citing papers authored by Oktay Duman

Since Specialization
Citations

This map shows the geographic impact of Oktay Duman's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Oktay Duman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Oktay Duman more than expected).

Fields of papers citing papers by Oktay Duman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Oktay Duman. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Oktay Duman. The network helps show where Oktay Duman may publish in the future.

Co-authorship network of co-authors of Oktay Duman

This figure shows the co-authorship network connecting the top 25 collaborators of Oktay Duman. A scholar is included among the top collaborators of Oktay Duman based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Oktay Duman. Oktay Duman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Duman, Oktay & Esra Erkuş-Duman. (2025). Nonlinear approximation of vector-valued functions by Shepard operators based on max-product and max-min operations. Fuzzy Sets and Systems. 509. 109332–109332.
2.
Duman, Oktay, Biancamaria Della Vecchia, & Esra Erkuş-Duman. (2024). Kantorovich Version of Vector-Valued Shepard Operators. Axioms. 13(3). 181–181.
3.
Duman, Oktay. (2023). Max-product Shepard operators based on multivariable Taylor polynomials. Journal of Computational and Applied Mathematics. 437. 115456–115456. 3 indexed citations
4.
Duman, Oktay & Biancamaria Della Vecchia. (2023). Vector-Valued Shepard Processes: Approximation with Summability. Axioms. 12(12). 1124–1124. 2 indexed citations
5.
Anastassiou, George A. & Oktay Duman. (2013). Advances in applied mathematics and approximation theory : contributions from AMAT 2012. CERN Document Server (European Organization for Nuclear Research). 1 indexed citations
6.
Anastassiou, George A. & Oktay Duman. (2010). Fractional Trigonometric Korovkin Theory in Statistical Sense. Bulgarian Digital Mathematics Library (BulDML) at IMI-BAS (Institute of Mathematics and Informatics). 35(2). 121–136. 1 indexed citations
7.
Duman, Oktay. (2010). Fuzzy approximation based on statistical rates. Publicationes Mathematicae Debrecen. 76(3). 453–464. 1 indexed citations
8.
Anastassiou, George A. & Oktay Duman. (2010). Statistical convergence of double-complex Picard integral operators. Applied Mathematics Letters. 23(8). 852–858. 3 indexed citations
9.
Anastassiou, George A. & Oktay Duman. (2010). Statistical approximation by double complex Gauss–Weierstrass integral operators. Applied Mathematics Letters. 24(4). 438–443. 2 indexed citations
10.
Anastassiou, George A. & Oktay Duman. (2010). StatisticalLp-approximation by double Gauss–Weierstrass singular integral operators. Computers & Mathematics with Applications. 59(6). 1985–1999. 3 indexed citations
11.
Özarslan, Mehmet Ali, et al.. (2010). Rates of convergence of certain King-type operators for functions with derivative of bounded variation. Mathematical and Computer Modelling. 52(1-2). 334–345. 21 indexed citations
12.
Duman, Oktay. (2007). Higher Order Generalization of Positive Linear Operators Defined by a Class of Borel Measures. TURKISH JOURNAL OF MATHEMATICS. 31(3). 333–339. 1 indexed citations
13.
Anastassiou, George A. & Oktay Duman. (2007). A Baskakov type generalization of statistical Korovkin theory. Journal of Mathematical Analysis and Applications. 340(1). 476–486. 32 indexed citations
14.
Demi̇rci̇, Kami̇l, et al.. (2007). Equi-statistical convergence of positive linear operators. Journal of Mathematical Analysis and Applications. 339(2). 1065–1072. 53 indexed citations
15.
Duman, Oktay & Mehmet Ali Özarslan. (2007). Szász–Mirakjan type operators providing a better error estimation. Applied Mathematics Letters. 20(12). 1184–1188. 70 indexed citations
16.
Özarslan, Mehmet Ali, Oktay Duman, & H. M. Srivastava. (2007). Statistical approximation results for Kantorovich-type operators involving some special polynomials. Mathematical and Computer Modelling. 48(3-4). 388–401. 39 indexed citations
17.
Duman, Oktay & Esra Erkuş-Duman. (2006). Approximation of Continuous Periodic Functions Via Statistical Convergence. Computers & Mathematics with Applications. 52(6-7). 967–974. 10 indexed citations
18.
Duman, Oktay, Esra Erkuş-Duman, & Vijay Gupta. (2006). Statistical rates on the multivariate approximation theory. Mathematical and Computer Modelling. 44(9-10). 763–770. 30 indexed citations
19.
Duman, Oktay & Cihan Orhan. (2005). Rates of A-statistical convergence of positive linear operators. Applied Mathematics Letters. 18(12). 1339–1344. 19 indexed citations
20.
Duman, Oktay. (2004). The effects of matrix summability methodson bounds of function sequences. Applied Mathematics Letters. 17(11). 1221–1229. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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