Citation Rankings
Highly Cited Researchers

Saint John\\\\\\\'s University Highly Cited Researchers CitationNatural Sciences / Mathematical Sciences Rankings (Sort by last 6 years Citation Index) 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

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
United States
Genady Ya Grabarnik
operator algebras
ergodic theory
statistics
sparse modeling
machine learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,659
1,414
0.386
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
United States
Mikhail Ostrovskii
Functional Analysis
Graph Theory
Metric Geometry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,414
528
0.373
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
United States
Igor V Nikolaev
Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
619
180
0.291
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
United States
Regina Mistretta
Mathematics Teacher Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
340
111
0.326
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
United States
Bret Benesh
Finite Group Theory and Combinatorial Game Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
166
103
0.620
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
United States
Alexander A Katz
Mathematics
Functional Analysis
Operator Algebras
Topological Algebras
Ergodic Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61
8
0.131
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
United States
Kazi Obaidullah
Wireless Body Area Network and Security
Net. & Cyber Security
OO Programs
Data Struct and Algorithms
Machine Lear & Logic D
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
5
0.185
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Tanzania
Meseyeki Saiguran
Mathematics of real world systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
United States
Raeann Kyriakou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Last 6 Years Citation Counts Rankings
Rankings
346,967
United States
109,846
19
Ranking Based On Selection: 1
Genady Ya Grabarnik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,659
1,414
0.386
operator algebras
ergodic theory
statistics
sparse modeling
machine learning
* Last 6 Years Citation Counts Rankings
Rankings
689,641
United States
198,843
50
Ranking Based On Selection: 2
Mikhail Ostrovskii
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,414
528
0.373
Functional Analysis
Graph Theory
Metric Geometry
* Last 6 Years Citation Counts Rankings
Rankings
1,152,141
United States
286,372
104
Ranking Based On Selection: 3
Igor V Nikolaev
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
619
180
0.291
* Last 6 Years Citation Counts Rankings
Rankings
1,374,703
United States
320,380
127
Ranking Based On Selection: 4
Regina Mistretta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
340
111
0.326
* Last 6 Years Citation Counts Rankings
Rankings
1,409,097
United States
325,362
7
Ranking Based On Selection: 5
Bret Benesh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
166
103
0.620
Finite Group Theory and Combinatorial Game Theory
* Last 6 Years Citation Counts Rankings
Rankings
2,170,381
United States
426,293
196
Ranking Based On Selection: 6
Alexander A Katz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61
8
0.131
Mathematics
Functional Analysis
Operator Algebras
Topological Algebras
Ergodic Theory
* Last 6 Years Citation Counts Rankings
Rankings
2,234,616
United States
433,467
203
Ranking Based On Selection: 7
Kazi Obaidullah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
5
0.185
Wireless Body Area Network and Security
Net. & Cyber Security
OO Programs
Data Struct and Algorithms
Machine Lear & Logic D
* Last 6 Years Citation Counts Rankings
Rankings
2,269,944
Tanzania
3,082
10
Ranking Based On Selection: 8
Meseyeki Saiguran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Last 6 Years Citation Counts Rankings
Rankings
2,358,176
United States
445,439
210
Ranking Based On Selection: 9
Raeann Kyriakou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000