World Scientist and University Rankings 2025

Canada Natural Sciences / Mathematical Sciences 925 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 yearsAs of Jan 30, 2025, the rankings are determined according to the Total H IndexBETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].

* Total H IndexRankings
Ranking Based On Selection: 1
Stephen Walter
Statistics
Biostatistics
clinical epidemiology
public health
Metrics
H-Index
i10 Index
Citation Counts
135
438
95,721
* Total H IndexRankings
Ranking Based On Selection: 2
HM Srivastava
Special Functions
Number Theory
Integral Transforms
Fractional Calculus
Applied Analysis
Metrics
H-Index
i10 Index
Citation Counts
112
1,023
96,919
* Total H IndexRankings
Ranking Based On Selection: 3
Richard Cook
biostatistics
clinical trials
statistics
longitudinal data
life history data
Metrics
H-Index
i10 Index
Citation Counts
99
320
42,424
* Total H IndexRankings
Ranking Based On Selection: 5
Tibor Schuster
Statistics
Epidemiology
Causal Inference
Clinical Trials
Data Science
Metrics
H-Index
i10 Index
Citation Counts
85
300
26,827
* Total H IndexRankings
Ranking Based On Selection: 7
Daniel Ansari
Numerical Cognition
Mathematical Cognition
Developmental Cognitive Neuroscience
Educational Neuroscience
Dyscalculia
Metrics
H-Index
i10 Index
Citation Counts
82
169
23,326
* Total H IndexRankings
Ranking Based On Selection: 8
Mark Lewis
applied mathematics
conservation biology
mathematical biology
theoretical ecology
Metrics
H-Index
i10 Index
Citation Counts
79
235
28,950
* Total H IndexRankings
Ranking Based On Selection: 9
Paul Villeneuve
Epidemiology
Air pollution
Radiation Health Effects
Environmental health
Metrics
H-Index
i10 Index
Citation Counts
77
209
23,389
* Total H IndexRankings
Ranking Based On Selection: 10
JF Williams
adaptive numerical methods
PDEs
finite time singularities
Metrics
H-Index
i10 Index
Citation Counts
77
370
26,873

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H IndexRankings
Ranking Based On Selection: 11
Juncheng Wei
Partial Differential Equations
Nonlinear Analysis
Reaction-Diffusion Systems
Semilinear Elliptic
Metrics
H-Index
i10 Index
Citation Counts
75
388
22,127
* Total H IndexRankings
Ranking Based On Selection: 12
Jörn Diedrichsen
Cerebellum
Motor Control and learning
fMRI
Statistics
Metrics
H-Index
i10 Index
Citation Counts
74
154
22,746
* Total H IndexRankings
Ranking Based On Selection: 13
Troy Day
Evolutionary theory
applied mathematics
infectious diseases
Metrics
H-Index
i10 Index
Citation Counts
73
145
18,457
* Total H IndexRankings
Ranking Based On Selection: 14
Luc Devroye
Probabilistic analysis of algorithms
Metrics
H-Index
i10 Index
Citation Counts
73
266
33,021
* Total H IndexRankings
Ranking Based On Selection: 15
Arnold Mitnitski
mathematical modeling of phenotypic aging
Metrics
H-Index
i10 Index
Citation Counts
72
143
38,922
* Total H IndexRankings
Ranking Based On Selection: 16
Luis Radford
Mathematics Teaching and Learning
Semiotics
Ethics
Embodiment
Early Algebra
Metrics
H-Index
i10 Index
Citation Counts
71
192
17,278
* Total H IndexRankings
Ranking Based On Selection: 17
Michael C Mackey
biomathematics
irreversibility
statistical mechanics
Metrics
H-Index
i10 Index
Citation Counts
70
191
27,156
* Total H IndexRankings
Ranking Based On Selection: 18
Xinzhi Liu
Differential equations
Hybrid dynamical systems
Metrics
H-Index
i10 Index
Citation Counts
68
315
17,368
* Total H IndexRankings
Ranking Based On Selection: 20
D Marc Kilgour
game theory
electoral systems
international relations
operations research
systems engineering
Metrics
H-Index
i10 Index
Citation Counts
63
247
17,014
* Total H IndexRankings
Ranking Based On Selection: 21
Andrea Lodi
Applied Mathematics
Integer Programming
Mathematical Optimization
Data Science
Metrics
H-Index
i10 Index
Citation Counts
62
176
19,737
* Total H IndexRankings
Ranking Based On Selection: 22
Jerald Lawless
Statistics
Biostatistics
Metrics
H-Index
i10 Index
Citation Counts
62
146
31,419
* Total H IndexRankings
Ranking Based On Selection: 23
Péter Sólymos
Statistical Ecology
Conservation Biology
Ecology
Metrics
H-Index
i10 Index
Citation Counts
60
152
77,348
* Total H IndexRankings
Ranking Based On Selection: 24
Jacques Desrosiers
Combinatorial optimization
Column generation
Mathematical programming
Vehicle routing
Crew scheduling
Metrics
H-Index
i10 Index
Citation Counts
60
90
21,208
* Total H IndexRankings
Ranking Based On Selection: 25
Guy Desaulniers
mathématiques
recherche opérationnelle
Metrics
H-Index
i10 Index
Citation Counts
59
125
13,941
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Stephen Walter
Metrics
H-Index
i10-Index
Citation Counts
135
438
95,721
Statistics
Biostatistics
clinical epidemiology
public health
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
HM Srivastava
Metrics
H-Index
i10-Index
Citation Counts
112
1,023
96,919
Special Functions
Number Theory
Integral Transforms
Fractional Calculus
Applied Analysis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Richard Cook
Metrics
H-Index
i10-Index
Citation Counts
99
320
42,424
biostatistics
clinical trials
statistics
longitudinal data
life history data
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
N Balakrishnan
Metrics
H-Index
i10-Index
Citation Counts
97
732
88,568
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Tibor Schuster
Metrics
H-Index
i10-Index
Citation Counts
85
300
26,827
Statistics
Epidemiology
Causal Inference
Clinical Trials
Data Science
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Rollin Brant
Metrics
H-Index
i10-Index
Citation Counts
85
227
29,542
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Daniel Ansari
Metrics
H-Index
i10-Index
Citation Counts
82
169
23,326
Numerical Cognition
Mathematical Cognition
Developmental Cognitive Neuroscience
Educational Neuroscience
Dyscalculia
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Mark Lewis
Metrics
H-Index
i10-Index
Citation Counts
79
235
28,950
applied mathematics
conservation biology
mathematical biology
theoretical ecology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Paul Villeneuve
Metrics
H-Index
i10-Index
Citation Counts
77
209
23,389
Epidemiology
Air pollution
Radiation Health Effects
Environmental health
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
JF Williams
Metrics
H-Index
i10-Index
Citation Counts
77
370
26,873
adaptive numerical methods
PDEs
finite time singularities

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Juncheng Wei
Metrics
H-Index
i10-Index
Citation Counts
75
388
22,127
Partial Differential Equations
Nonlinear Analysis
Reaction-Diffusion Systems
Semilinear Elliptic
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Jörn Diedrichsen
Metrics
H-Index
i10-Index
Citation Counts
74
154
22,746
Cerebellum
Motor Control and learning
fMRI
Statistics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Troy Day
Metrics
H-Index
i10-Index
Citation Counts
73
145
18,457
Evolutionary theory
applied mathematics
infectious diseases
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Luc Devroye
Metrics
H-Index
i10-Index
Citation Counts
73
266
33,021
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Arnold Mitnitski
Metrics
H-Index
i10-Index
Citation Counts
72
143
38,922
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Luis Radford
Metrics
H-Index
i10-Index
Citation Counts
71
192
17,278
Mathematics Teaching and Learning
Semiotics
Ethics
Embodiment
Early Algebra
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Michael C Mackey
Metrics
H-Index
i10-Index
Citation Counts
70
191
27,156
biomathematics
irreversibility
statistical mechanics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Xinzhi Liu
Metrics
H-Index
i10-Index
Citation Counts
68
315
17,368
Differential equations
Hybrid dynamical systems
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Manuele Margni
Metrics
H-Index
i10-Index
Citation Counts
63
157
22,177
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
D Marc Kilgour
Metrics
H-Index
i10-Index
Citation Counts
63
247
17,014
game theory
electoral systems
international relations
operations research
systems engineering
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Andrea Lodi
Metrics
H-Index
i10-Index
Citation Counts
62
176
19,737
Applied Mathematics
Integer Programming
Mathematical Optimization
Data Science
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Jerald Lawless
Metrics
H-Index
i10-Index
Citation Counts
62
146
31,419
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Péter Sólymos
Metrics
H-Index
i10-Index
Citation Counts
60
152
77,348
Statistical Ecology
Conservation Biology
Ecology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Jacques Desrosiers
Metrics
H-Index
i10-Index
Citation Counts
60
90
21,208
Combinatorial optimization
Column generation
Mathematical programming
Vehicle routing
Crew scheduling
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Guy Desaulniers
Metrics
H-Index
i10-Index
Citation Counts
59
125
13,941