Citation Rankings
Highly Cited Researchers
Natural Sciences / Mathematical Sciences Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Fractional Differential equations
Lie Symmetry
Bio-Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,178
7,381
0.606
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,688
1,423
0.843
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Mathematical Biology
Optimal Control Theory
Infectious Disease Modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
780
767
0.983
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Topology
Commutative rings
Algebraic lattices
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,128
613
0.543
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Computational Methods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
860
603
0.701
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
BPM
CMMN
BPMN
Business Process Management
Case Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,415
398
0.165
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
The integration of everyday context and Mathematics
Mathematics and Mathematical literacy
Misconceptions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
361
343
0.950
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
288
0.857
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Mathematics education
teaching and learning of mathematics
Professional development
indigenization of mathematics learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
292
225
0.771
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Quantile Regression
Time Series Analysis and Forecasting
Robust Statistics
Regression Diagnostics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
183
169
0.923
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Matrix Theory
Linear Algebra
Abstract Algebra
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
445
120
0.270
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Pointfree topology
Commutative rings
f-rings
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
109
0.653
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Mathematics
Mathematics Education
Teacher Development in Mathematics
Curriculum Studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112
109
0.973
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Partial Differential Equations
Numerical Analysis and Fractional Calculus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103
102
0.990
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
mathematical problem solving
cognitivism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
157
87
0.554
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Pointfree topology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
169
86
0.509
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Relativistic Astrophyics
Quatum Gravity and Cosmology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105
80
0.762
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
Classroom practice
professional development of mathematics teachers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
117
74
0.632
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Mathematical modelling of infectious diseases
In-host modelling of viral infections and general mathematical modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73
73
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Longitudinal data analysis
Survival data analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74
72
0.973
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Intermediate and Senior phase Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61
58
0.951
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Approximation Theory and Financial Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
57
0.626
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Applied Mathematics
Mathematical Modelling
Dynamical Systems
Mathematical Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
51
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Stochastic processes
Harmonic analysis
fractal geometry
Algorithmic randomness
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71
40
0.563
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Statistics Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
25
0.490
* Last 6 Years Citation Counts Rankings
Rankings
56,249
230
8
Ranking Based On Selection: 1
Hossein Jafari
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,178
7,381
0.606
Fractional Differential equations
Lie Symmetry
Bio-Mathematics
* Last 6 Years Citation Counts Rankings
Rankings
360,968
1,691
49
Ranking Based On Selection: 2
Abdullahi Rashid Adem
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,688
1,423
0.843
* Last 6 Years Citation Counts Rankings
Rankings
572,738
2,882
106
Ranking Based On Selection: 3
Mayowa Micheal Ojo
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
780
767
0.983
Mathematical Biology
Optimal Control Theory
Infectious Disease Modeling
* Last 6 Years Citation Counts Rankings
Rankings
654,135
3,391
128
Ranking Based On Selection: 4
Themba Dube
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,128
613
0.543
Topology
Commutative rings
Algebraic lattices
* Last 6 Years Citation Counts Rankings
Rankings
660,252
3,434
129
Ranking Based On Selection: 5
Melusi Khumalo
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
860
603
0.701
* Last 6 Years Citation Counts Rankings
Rankings
823,630
4,493
188
Ranking Based On Selection: 6
Mike Marin
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,415
398
0.165
BPM
CMMN
BPMN
Business Process Management
Case Management
* Last 6 Years Citation Counts Rankings
Rankings
888,655
4,979
220
Ranking Based On Selection: 7
France Machaba
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
361
343
0.950
The integration of everyday context and Mathematics
Mathematics and Mathematical literacy
Misconceptions
* Last 6 Years Citation Counts Rankings
Rankings
966,219
5,552
266
Ranking Based On Selection: 8
Marcia Moremedi
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
288
0.857
* Last 6 Years Citation Counts Rankings
Rankings
1,079,387
6,472
328
Ranking Based On Selection: 9
Zingiswa Jojo
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
292
225
0.771
Mathematics education
teaching and learning of mathematics
Professional development
indigenization of mathematics learning
* Last 6 Years Citation Counts Rankings
Rankings
1,213,419
7,579
435
Ranking Based On Selection: 10
Edmore Ranganai
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
183
169
0.923
Quantile Regression
Time Series Analysis and Forecasting
Robust Statistics
Regression Diagnostics
* Last 6 Years Citation Counts Rankings
Rankings
1,370,928
8,981
557
Ranking Based On Selection: 11
JD Botha
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
445
120
0.270
Matrix Theory
Linear Algebra
Abstract Algebra
* Last 6 Years Citation Counts Rankings
Rankings
1,415,774
9,402
601
Ranking Based On Selection: 12
Oghenetega Ighedo
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
109
0.653
Pointfree topology
Commutative rings
f-rings
* Last 6 Years Citation Counts Rankings
Rankings
1,417,512
9,419
605
Ranking Based On Selection: 13
Chipo Makamure
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112
109
0.973
Mathematics
Mathematics Education
Teacher Development in Mathematics
Curriculum Studies
* Last 6 Years Citation Counts Rankings
Rankings
1,447,354
9,676
636
Ranking Based On Selection: 14
Mahluli Ncube
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103
102
0.990
Partial Differential Equations
Numerical Analysis and Fractional Calculus
* Last 6 Years Citation Counts Rankings
Rankings
1,514,729
10,277
693
Ranking Based On Selection: 15
Joseph Jabulane Dhlamini
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
157
87
0.554
mathematical problem solving
cognitivism
* Last 6 Years Citation Counts Rankings
Rankings
1,519,370
10,322
701
Ranking Based On Selection: 16
Inderasan Naidoo
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
169
86
0.509
* Last 6 Years Citation Counts Rankings
Rankings
1,551,131
10,600
737
Ranking Based On Selection: 17
Amos Kubeka
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105
80
0.762
Relativistic Astrophyics
Quatum Gravity and Cosmology
* Last 6 Years Citation Counts Rankings
Rankings
1,583,023
10,897
773
Ranking Based On Selection: 18
Mapula Ngoepe|Mapula Gertrude Ngoepe
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
117
74
0.632
Classroom practice
professional development of mathematics teachers
* Last 6 Years Citation Counts Rankings
Rankings
1,591,428
10,965
781
Ranking Based On Selection: 19
Zviiteyi Chazuka
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73
73
1.000
Mathematical modelling of infectious diseases
In-host modelling of viral infections and general mathematical modelling
* Last 6 Years Citation Counts Rankings
Rankings
1,596,483
11,012
791
Ranking Based On Selection: 20
Tafere Tilahun
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74
72
0.973
Longitudinal data analysis
Survival data analysis
* Last 6 Years Citation Counts Rankings
Rankings
1,681,164
11,746
872
Ranking Based On Selection: 21
Bronwin Meyer
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61
58
0.951
Intermediate and Senior phase Mathematics
* Last 6 Years Citation Counts Rankings
Rankings
1,685,497
11,787
873
Ranking Based On Selection: 22
Phillip Mashele
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91
57
0.626
Approximation Theory and Financial Mathematics
* Last 6 Years Citation Counts Rankings
Rankings
1,731,746
12,235
918
Ranking Based On Selection: 23
Tigabu Kasie
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
51
1.000
Applied Mathematics
Mathematical Modelling
Dynamical Systems
Mathematical Biology
* Last 6 Years Citation Counts Rankings
Rankings
1,810,512
12,969
998
Ranking Based On Selection: 24
Safari Mukeru
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71
40
0.563
Stochastic processes
Harmonic analysis
fractal geometry
Algorithmic randomness
* Last 6 Years Citation Counts Rankings
Rankings
1,951,883
14,330
1,141
Ranking Based On Selection: 25
Eva G. Makwakwa
University of South Africa
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51
25
0.490