Citation Rankings
Highly Cited Researchers

Çankaya University Highly Cited Researchers CitationNatural Sciences / Mathematical Sciences Rankings 2025

Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Total Citation Counts Rankings
Ranking Based On Selection :1
Türkiye
Erdal Karapınar
Functional Analysis
Operator Theory
Linear Topological Invariants
Fixed Point Theory
Best
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,883
12,326
0.590
* Total Citation Counts Rankings
Ranking Based On Selection :2
Türkiye
Fahd Jarad
Fractional calculus
Painleve analysis
Fractional differential equations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,594
9,441
0.891
* Total Citation Counts Rankings
Ranking Based On Selection :3
Türkiye
Billur Kaymakçalan
Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,130
505
0.237
* Total Citation Counts Rankings
Ranking Based On Selection :4
Türkiye
Ekin Uğurlu
Operator theory
Spectral analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,095
803
0.733
* Total Citation Counts Rankings
Ranking Based On Selection :5
Türkiye
Alexander Kushpel
Approximation Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
666
191
0.287
* Total Citation Counts Rankings
Ranking Based On Selection :6
Türkiye
Taylan Demir
Applied Mathematics
Mathematical Physics
Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
45
1.000
* Total Citation Counts Rankings
Rankings
36,998
Türkiye
115
1
Ranking Based On Selection: 1
Erdal Karapınar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,883
12,326
0.590
Functional Analysis
Operator Theory
Linear Topological Invariants
Fixed Point Theory
Best
* Total Citation Counts Rankings
Rankings
89,518
Türkiye
332
2
Ranking Based On Selection: 2
Fahd Jarad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,594
9,441
0.891
Fractional calculus
Painleve analysis
Fractional differential equations
* Total Citation Counts Rankings
Rankings
411,176
Türkiye
4,722
6
Ranking Based On Selection: 3
Billur Kaymakçalan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,130
505
0.237
* Total Citation Counts Rankings
Rankings
633,783
Türkiye
10,452
15
Ranking Based On Selection: 4
Ekin Uğurlu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,095
803
0.733
* Total Citation Counts Rankings
Rankings
809,788
Türkiye
16,199
21
Ranking Based On Selection: 5
Alexander Kushpel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
666
191
0.287
* Total Citation Counts Rankings
Rankings
1,837,170
Türkiye
61,038
86
Ranking Based On Selection: 6
Taylan Demir
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
45
1.000
Applied Mathematics
Mathematical Physics
Engineering