The international independent ranking organisation AD Scientific Index is more than an ordinary "Ranking". The "AD Scientific Index" analyses the academic work of scientists using the H-index, i10 index and number of citations, and provides results that can be used to evaluate the productivity and efficiency of individuals and institutions. In addition to ranking according to "total H-index" for individuals and institutions, you can also see the ranking and analyses according to "last 6 years H-index", "total i10 Productivity index", "last 6 years i10 Productivity index", "total citations" and "last 6 years citations" only in "AD Scientific Index". See also: Subject Rankings, University Subject Rankings and  Universities Rankings 2024 (Sort by: Last 6 years H Index).   Click here for individual or institutional registration.

Total 4 scientist
H-Index Rankings
University / Institution:
# 61
Country:
# 10,544
Region:
# 98,456
World:
# 495,466
H-Index
Total:
19
Last 6 Year:
12
Last 6 Year/Total:
0.632
i10 Index
Total:
35
Last 6 Year:
16
Last 6 Year/Total:
0.457
Citation
Total:
1,128
Last 6 Year:
421
Last 6 Year/Total:
0.373
H-Index Rankings
University / Institution:
# 110
Country:
# 21,471
Region:
# 268,824
World:
# 1,134,840
H-Index
Total:
7
Last 6 Year:
5
Last 6 Year/Total:
0.714
i10 Index
Total:
6
Last 6 Year:
1
Last 6 Year/Total:
0.167
Citation
Total:
168
Last 6 Year:
87
Last 6 Year/Total:
0.518
Ryuma Orita
Mathematics
Symplectic Geometry
Algebraic Topology
Dynamical Systems
H-Index Rankings
University / Institution:
# 132
Country:
# 27,499
Region:
# 417,596
World:
# 1,575,888
H-Index
Total:
3
Last 6 Year:
3
Last 6 Year/Total:
1.000
i10 Index
Total:
1
Last 6 Year:
0
Last 6 Year/Total:
0.000
Citation
Total:
37
Last 6 Year:
32
Last 6 Year/Total:
0.865
Takanori Nagamine
Commutative algebra
Algebraic geometry
Affine algebraic geometry
H-Index Rankings
University / Institution:
# 134
Country:
# 28,476
Region:
# 449,433
World:
# 1,658,346
H-Index
Total:
3
Last 6 Year:
2
Last 6 Year/Total:
0.667
i10 Index
Total:
0
Last 6 Year:
0
Last 6 Year/Total:
0
Citation
Total:
23
Last 6 Year:
13
Last 6 Year/Total:
0.565
AD Scientific Index - World Scientists Rankings - 2024 H INDEX i10 INDEX CITATION
University /
Institution
Country Region World Name Country University / Institution Subject Total Last 6 year Last 6 year/total Total Last 6 year Last 6 year/total Total Last 6 year Last 6 year/total
61 10,544 98,456 495,466
Japan Niigata University Niigata University Natural Sciences / Mathematical Sciences

Mathematics |

19 12 0.632 35 16 0.457 1,128 421 0.373
110 21,471 268,824 1,134,840
Japan Niigata University Niigata University Natural Sciences / Mathematical Sciences

Operator Algebras | Metric Spaces | Discrete Groups |

7 5 0.714 6 1 0.167 168 87 0.518
132 27,499 417,596 1,575,888
Japan Niigata University Niigata University Natural Sciences / Mathematical Sciences

Mathematics | Symplectic Geometry | Algebraic Topology | Dynamical Systems |

3 3 1.000 1 0 0.000 37 32 0.865
134 28,476 449,433 1,658,346
Japan Niigata University Niigata University Natural Sciences / Mathematical Sciences

Commutative algebra | Algebraic geometry | Affine algebraic geometry |

3 2 0.667 0 0 0 23 13 0.565