0000-0002-8324-3774

7202453532

Koike, Shigeaki

Waseda University

Publications

Citations

395

h-index

Found

Without own publications

By date By citations

Without own publications

By date By citations

See full statistics

Total publications

Total citations

395

Citations per publication

11.62

Average publications per year

0.87

Average coauthors

1.09

Publications years

1986-2024 (39 years)

h-index

i10-index

m-index

0.28

o-index

g-index

w-index

Metrics description

h-index

A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

https://www.pnas.org/doi/full/10.1073/pnas.0507655102

i10-index

The number of the author's publications that received at least 10 links each.

https://scholar.googleblog.com/2011/11/google-scholar-citations-open-to-all.html

m-index

The researcher's m-index is numerically equal to the ratio of his h-index to the number of years that have passed since the first publication.

https://harzing.com/publications/white-papers/reflections-on-the-h-index

o-index

The geometric mean of the h-index and the number of citations of the most cited article of the scientist.

https://arxiv.org/abs/1511.01545

g-index

For a given set of articles, sorted in descending order of the number of citations that these articles received, the g-index is the largest number such that the g most cited articles received (in total) at least g² citations.

https://doi.org/10.1007/s11192-006-0144-7

w-index

If w articles of a researcher have at least 10w citations each and other publications are less than 10(w+1) citations, then the researcher's w-index is equal to w.

https://doi.org/10.1002/asi.21276

Top-100

See full statistics

Fields of science

	5 10 15 20 25
Applied Mathematics	Applied Mathematics, 23, 67.65% Applied Mathematics 23 publications, 67.65%
Analysis	Analysis, 16, 47.06% Analysis 16 publications, 47.06%
General Mathematics	General Mathematics, 6, 17.65% General Mathematics 6 publications, 17.65%
Control and Optimization	Control and Optimization, 4, 11.76% Control and Optimization 4 publications, 11.76%
Discrete Mathematics and Combinatorics	Discrete Mathematics and Combinatorics, 2, 5.88% Discrete Mathematics and Combinatorics 2 publications, 5.88%
Mathematical Physics	Mathematical Physics, 1, 2.94% Mathematical Physics 1 publication, 2.94%
Computational Mathematics	Computational Mathematics, 1, 2.94% Computational Mathematics 1 publication, 2.94%
Modeling and Simulation	Modeling and Simulation, 1, 2.94% Modeling and Simulation 1 publication, 2.94%
Geometry and Topology	Geometry and Topology, 1, 2.94% Geometry and Topology 1 publication, 2.94%
	5 10 15 20 25

Journals

Citing journals

Publishers

	2 4 6 8 10 12
Springer Nature	Springer Nature, 11, 32.35% Springer Nature 11 publications, 32.35%
Elsevier	Elsevier, 10, 29.41% Elsevier 10 publications, 29.41%
American Institute of Mathematical Sciences (AIMS)	American Institute of Mathematical Sciences (AIMS), 4, 11.76% American Institute of Mathematical Sciences (AIMS) 4 publications, 11.76%
Society for Industrial and Applied Mathematics (SIAM)	Society for Industrial and Applied Mathematics (SIAM), 3, 8.82% Society for Industrial and Applied Mathematics (SIAM) 3 publications, 8.82%
Mathematical Society of Japan	Mathematical Society of Japan, 2, 5.88% Mathematical Society of Japan 2 publications, 5.88%
Cambridge University Press	Cambridge University Press, 1, 2.94% Cambridge University Press 1 publication, 2.94%
Taylor & Francis	Taylor & Francis, 1, 2.94% Taylor & Francis 1 publication, 2.94%
Indiana University Press	Indiana University Press, 1, 2.94% Indiana University Press 1 publication, 2.94%
Hiroshima University - Department of Mathematics	Hiroshima University - Department of Mathematics, 1, 2.94% Hiroshima University - Department of Mathematics 1 publication, 2.94%
	2 4 6 8 10 12

Organizations from articles

	2 4 6 8 10 12
Saitama University	Saitama University, 11, 23.4% Saitama University 11 publications, 23.4%
Georgia Institute of technology	Georgia Institute of technology, 6, 12.77% Georgia Institute of technology 6 publications, 12.77%
Tohoku University	Tohoku University, 6, 12.77% Tohoku University 6 publications, 12.77%
Organization not defined	Organization not defined, 5, 10.64% Organization not defined 5 publications, 10.64%
Waseda University	Waseda University, 5, 10.64% Waseda University 5 publications, 10.64%
Tokyo Metropolitan University	Tokyo Metropolitan University, 4, 8.51% Tokyo Metropolitan University 4 publications, 8.51%
Ehime University	Ehime University, 3, 6.38% Ehime University 3 publications, 6.38%
Chuo University	Chuo University, 3, 6.38% Chuo University 3 publications, 6.38%
University of Padua	University of Padua, 1, 2.13% University of Padua 1 publication, 2.13%
University of Salerno	University of Salerno, 1, 2.13% University of Salerno 1 publication, 2.13%
Kobe University	Kobe University, 1, 2.13% Kobe University 1 publication, 2.13%
Tottori University of Environmental Studies	Tottori University of Environmental Studies, 1, 2.13% Tottori University of Environmental Studies 1 publication, 2.13%
	2 4 6 8 10 12

Countries from articles

	5 10 15 20 25 30
Japan	Japan, 30, 57.69% Japan 30 publications, 57.69%
Country not defined	Country not defined, 8, 15.38% Country not defined 8 publications, 15.38%
USA	USA, 7, 13.46% USA 7 publications, 13.46%
France	France, 4, 7.69% France 4 publications, 7.69%
Italy	Italy, 2, 3.85% Italy 2 publications, 3.85%
Chile	Chile, 1, 1.92% Chile 1 publication, 1.92%
	5 10 15 20 25 30

Citing organizations

	20 40 60 80 100 120
Organization not defined	Organization not defined, 108, 26.21% Organization not defined 108 citations, 26.21%
Sapienza University of Rome	Sapienza University of Rome, 14, 3.4% Sapienza University of Rome 14 citations, 3.4%
University of Padua	University of Padua, 11, 2.67% University of Padua 11 citations, 2.67%
Université Paris Dauphine-PSL	Université Paris Dauphine-PSL, 11, 2.67% Université Paris Dauphine-PSL 11 citations, 2.67%
Sorbonne University	Sorbonne University, 9, 2.18% Sorbonne University 9 citations, 2.18%
University of Salerno	University of Salerno, 8, 1.94% University of Salerno 8 citations, 1.94%
Georgia Institute of technology	Georgia Institute of technology, 8, 1.94% Georgia Institute of technology 8 citations, 1.94%
Waseda University	Waseda University, 8, 1.94% Waseda University 8 citations, 1.94%
University of Oxford	University of Oxford, 7, 1.7% University of Oxford 7 citations, 1.7%
Tohoku University	Tohoku University, 5, 1.21% Tohoku University 5 citations, 1.21%
Paris Cité University	Paris Cité University, 5, 1.21% Paris Cité University 5 citations, 1.21%
Sichuan Normal University	Sichuan Normal University, 4, 0.97% Sichuan Normal University 4 citations, 0.97%
University of Rome Tor Vergata	University of Rome Tor Vergata, 4, 0.97% University of Rome Tor Vergata 4 citations, 0.97%
University of Chicago	University of Chicago, 4, 0.97% University of Chicago 4 citations, 0.97%
University of Waterloo	University of Waterloo, 4, 0.97% University of Waterloo 4 citations, 0.97%
Fukuoka University	Fukuoka University, 4, 0.97% Fukuoka University 4 citations, 0.97%
Saitama University	Saitama University, 4, 0.97% Saitama University 4 citations, 0.97%
N.N. Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Sciences	N.N. Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Sciences, 3, 0.73% N.N. Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Sciences 3 citations, 0.73%
Beijing Normal University	Beijing Normal University, 3, 0.73% Beijing Normal University 3 citations, 0.73%
Beijing Institute of Technology	Beijing Institute of Technology, 3, 0.73% Beijing Institute of Technology 3 citations, 0.73%
Lebanese University	Lebanese University, 3, 0.73% Lebanese University 3 citations, 0.73%
Norwegian University of Science and Technology	Norwegian University of Science and Technology, 3, 0.73% Norwegian University of Science and Technology 3 citations, 0.73%
University of Oslo	University of Oslo, 3, 0.73% University of Oslo 3 citations, 0.73%
University of Florence	University of Florence, 3, 0.73% University of Florence 3 citations, 0.73%
University of Trento	University of Trento, 3, 0.73% University of Trento 3 citations, 0.73%
Tokyo Metropolitan University	Tokyo Metropolitan University, 3, 0.73% Tokyo Metropolitan University 3 citations, 0.73%
Seoul National University	Seoul National University, 3, 0.73% Seoul National University 3 citations, 0.73%
Rutgers, The State University of New Jersey	Rutgers, The State University of New Jersey, 3, 0.73% Rutgers, The State University of New Jersey 3 citations, 0.73%
University of California, Berkeley	University of California, Berkeley, 3, 0.73% University of California, Berkeley 3 citations, 0.73%
University of California, Los Angeles	University of California, Los Angeles, 3, 0.73% University of California, Los Angeles 3 citations, 0.73%
University of California, San Diego	University of California, San Diego, 3, 0.73% University of California, San Diego 3 citations, 0.73%
University of Buenos Aires	University of Buenos Aires, 3, 0.73% University of Buenos Aires 3 citations, 0.73%
University of Tokyo	University of Tokyo, 3, 0.73% University of Tokyo 3 citations, 0.73%
University of Toronto	University of Toronto, 3, 0.73% University of Toronto 3 citations, 0.73%
Moscow Institute of Physics and Technology	Moscow Institute of Physics and Technology, 2, 0.49% Moscow Institute of Physics and Technology 2 citations, 0.49%
Technical University of Munich	Technical University of Munich, 2, 0.49% Technical University of Munich 2 citations, 0.49%
University of Lisbon	University of Lisbon, 2, 0.49% University of Lisbon 2 citations, 0.49%
Humboldt University of Berlin	Humboldt University of Berlin, 2, 0.49% Humboldt University of Berlin 2 citations, 0.49%
Nanjing University of Science and Technology	Nanjing University of Science and Technology, 2, 0.49% Nanjing University of Science and Technology 2 citations, 0.49%
ETH Zurich	ETH Zurich, 2, 0.49% ETH Zurich 2 citations, 0.49%
Central China Normal University	Central China Normal University, 2, 0.49% Central China Normal University 2 citations, 0.49%
Wuhan University	Wuhan University, 2, 0.49% Wuhan University 2 citations, 0.49%
Jiangsu Normal University	Jiangsu Normal University, 2, 0.49% Jiangsu Normal University 2 citations, 0.49%
North China Electric Power University	North China Electric Power University, 2, 0.49% North China Electric Power University 2 citations, 0.49%
University of Bologna	University of Bologna, 2, 0.49% University of Bologna 2 citations, 0.49%
Beijing Information Science and Technology University	Beijing Information Science and Technology University, 2, 0.49% Beijing Information Science and Technology University 2 citations, 0.49%
Imperial College London	Imperial College London, 2, 0.49% Imperial College London 2 citations, 0.49%
Lebanese American University	Lebanese American University, 2, 0.49% Lebanese American University 2 citations, 0.49%
National University of Singapore	National University of Singapore, 2, 0.49% National University of Singapore 2 citations, 0.49%
Michigan State University	Michigan State University, 2, 0.49% Michigan State University 2 citations, 0.49%
University of Bari Aldo Moro	University of Bari Aldo Moro, 2, 0.49% University of Bari Aldo Moro 2 citations, 0.49%
University of Parma	University of Parma, 2, 0.49% University of Parma 2 citations, 0.49%
University of L'Aquila	University of L'Aquila, 2, 0.49% University of L'Aquila 2 citations, 0.49%
Free International University of Social Studies "Guido Carli"	Free International University of Social Studies "Guido Carli", 2, 0.49% Free International University of Social Studies "Guido Carli" 2 citations, 0.49%
Columbia University	Columbia University, 2, 0.49% Columbia University 2 citations, 0.49%
Shandong University	Shandong University, 2, 0.49% Shandong University 2 citations, 0.49%
Loyola University Chicago	Loyola University Chicago, 2, 0.49% Loyola University Chicago 2 citations, 0.49%
University of Cologne	University of Cologne, 2, 0.49% University of Cologne 2 citations, 0.49%
University of Wisconsin–Madison	University of Wisconsin–Madison, 2, 0.49% University of Wisconsin–Madison 2 citations, 0.49%
Ehime University	Ehime University, 2, 0.49% Ehime University 2 citations, 0.49%
Chuo University	Chuo University, 2, 0.49% Chuo University 2 citations, 0.49%
Universidade Estadual de Campinas	Universidade Estadual de Campinas, 2, 0.49% Universidade Estadual de Campinas 2 citations, 0.49%
Tottori University of Environmental Studies	Tottori University of Environmental Studies, 2, 0.49% Tottori University of Environmental Studies 2 citations, 0.49%
Tsuda University	Tsuda University, 2, 0.49% Tsuda University 2 citations, 0.49%
Université Côte d'Azur	Université Côte d'Azur, 2, 0.49% Université Côte d'Azur 2 citations, 0.49%
University of Évry Val d'Essonne	University of Évry Val d'Essonne, 2, 0.49% University of Évry Val d'Essonne 2 citations, 0.49%
Paris Sciences et Lettres	Paris Sciences et Lettres, 2, 0.49% Paris Sciences et Lettres 2 citations, 0.49%
P.N. Lebedev Physical Institute of the Russian Academy of Sciences	P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 1, 0.24% P.N. Lebedev Physical Institute of the Russian Academy of Sciences 1 citation, 0.24%
Saint Petersburg State University	Saint Petersburg State University, 1, 0.24% Saint Petersburg State University 1 citation, 0.24%
Yerevan State University	Yerevan State University, 1, 0.24% Yerevan State University 1 citation, 0.24%
Institute of Mathematics National Academy of Sciences of the Republic of Armenia	Institute of Mathematics National Academy of Sciences of the Republic of Armenia, 1, 0.24% Institute of Mathematics National Academy of Sciences of the Republic of Armenia 1 citation, 0.24%
King Abdullah University of Science and Technology	King Abdullah University of Science and Technology, 1, 0.24% King Abdullah University of Science and Technology 1 citation, 0.24%
King Abdulaziz University	King Abdulaziz University, 1, 0.24% King Abdulaziz University 1 citation, 0.24%
Indian Institute of Science	Indian Institute of Science, 1, 0.24% Indian Institute of Science 1 citation, 0.24%
Indian Institute of Science Education and Research, Pune	Indian Institute of Science Education and Research, Pune, 1, 0.24% Indian Institute of Science Education and Research, Pune 1 citation, 0.24%
Indian Institute of Technology Gandhinagar	Indian Institute of Technology Gandhinagar, 1, 0.24% Indian Institute of Technology Gandhinagar 1 citation, 0.24%
Tsinghua University	Tsinghua University, 1, 0.24% Tsinghua University 1 citation, 0.24%
Shanghai Jiao Tong University	Shanghai Jiao Tong University, 1, 0.24% Shanghai Jiao Tong University 1 citation, 0.24%
Huazhong University of Science and Technology	Huazhong University of Science and Technology, 1, 0.24% Huazhong University of Science and Technology 1 citation, 0.24%
Fudan University	Fudan University, 1, 0.24% Fudan University 1 citation, 0.24%
Sichuan University	Sichuan University, 1, 0.24% Sichuan University 1 citation, 0.24%
Qatar University	Qatar University, 1, 0.24% Qatar University 1 citation, 0.24%
Dalian University of Technology	Dalian University of Technology, 1, 0.24% Dalian University of Technology 1 citation, 0.24%
Basque Foundation for Science	Basque Foundation for Science, 1, 0.24% Basque Foundation for Science 1 citation, 0.24%
KTH Royal Institute of Technology	KTH Royal Institute of Technology, 1, 0.24% KTH Royal Institute of Technology 1 citation, 0.24%
Beijing University of Technology	Beijing University of Technology, 1, 0.24% Beijing University of Technology 1 citation, 0.24%
Parthenope University of Naples	Parthenope University of Naples, 1, 0.24% Parthenope University of Naples 1 citation, 0.24%
Sun Yat-sen University	Sun Yat-sen University, 1, 0.24% Sun Yat-sen University 1 citation, 0.24%
Polytechnic University of Milan	Polytechnic University of Milan, 1, 0.24% Polytechnic University of Milan 1 citation, 0.24%
University of International Business and Economics	University of International Business and Economics, 1, 0.24% University of International Business and Economics 1 citation, 0.24%
Polytechnic University of Turin	Polytechnic University of Turin, 1, 0.24% Polytechnic University of Turin 1 citation, 0.24%
Durham University	Durham University, 1, 0.24% Durham University 1 citation, 0.24%
Jiaxing University	Jiaxing University, 1, 0.24% Jiaxing University 1 citation, 0.24%
Tianjin University of Finance and Economics	Tianjin University of Finance and Economics, 1, 0.24% Tianjin University of Finance and Economics 1 citation, 0.24%
Tianjin University	Tianjin University, 1, 0.24% Tianjin University 1 citation, 0.24%
Shanghai University	Shanghai University, 1, 0.24% Shanghai University 1 citation, 0.24%
University of Bergen	University of Bergen, 1, 0.24% University of Bergen 1 citation, 0.24%
University of Palermo	University of Palermo, 1, 0.24% University of Palermo 1 citation, 0.24%
Kanazawa University	Kanazawa University, 1, 0.24% Kanazawa University 1 citation, 0.24%
University of Verona	University of Verona, 1, 0.24% University of Verona 1 citation, 0.24%

	20 40 60 80 100 120

Citing countries

	10 20 30 40 50 60 70
Country not defined	Country not defined, 62, 14.45% Country not defined 62 citations, 14.45%
France	France, 62, 14.45% France 62 citations, 14.45%
Italy	Italy, 56, 13.05% Italy 56 citations, 13.05%
USA	USA, 45, 10.49% USA 45 citations, 10.49%
Japan	Japan, 38, 8.86% Japan 38 citations, 8.86%
China	China, 32, 7.46% China 32 citations, 7.46%
Brazil	Brazil, 18, 4.2% Brazil 18 citations, 4.2%
Chile	Chile, 16, 3.73% Chile 16 citations, 3.73%
Russia	Russia, 10, 2.33% Russia 10 citations, 2.33%
United Kingdom	United Kingdom, 10, 2.33% United Kingdom 10 citations, 2.33%
Canada	Canada, 10, 2.33% Canada 10 citations, 2.33%
Germany	Germany, 9, 2.1% Germany 9 citations, 2.1%
Lebanon	Lebanon, 7, 1.63% Lebanon 7 citations, 1.63%
Romania	Romania, 6, 1.4% Romania 6 citations, 1.4%
Portugal	Portugal, 5, 1.17% Portugal 5 citations, 1.17%
Bulgaria	Bulgaria, 5, 1.17% Bulgaria 5 citations, 1.17%
Spain	Spain, 5, 1.17% Spain 5 citations, 1.17%
Norway	Norway, 4, 0.93% Norway 4 citations, 0.93%
Republic of Korea	Republic of Korea, 4, 0.93% Republic of Korea 4 citations, 0.93%
Argentina	Argentina, 3, 0.7% Argentina 3 citations, 0.7%
India	India, 3, 0.7% India 3 citations, 0.7%
Austria	Austria, 2, 0.47% Austria 2 citations, 0.47%
Poland	Poland, 2, 0.47% Poland 2 citations, 0.47%
Saudi Arabia	Saudi Arabia, 2, 0.47% Saudi Arabia 2 citations, 0.47%
Singapore	Singapore, 2, 0.47% Singapore 2 citations, 0.47%
Switzerland	Switzerland, 2, 0.47% Switzerland 2 citations, 0.47%
Ecuador	Ecuador, 2, 0.47% Ecuador 2 citations, 0.47%
Ukraine	Ukraine, 1, 0.23% Ukraine 1 citation, 0.23%
Australia	Australia, 1, 0.23% Australia 1 citation, 0.23%
Armenia	Armenia, 1, 0.23% Armenia 1 citation, 0.23%
Belgium	Belgium, 1, 0.23% Belgium 1 citation, 0.23%
Hungary	Hungary, 1, 0.23% Hungary 1 citation, 0.23%
Qatar	Qatar, 1, 0.23% Qatar 1 citation, 0.23%
Sweden	Sweden, 1, 0.23% Sweden 1 citation, 0.23%

	10 20 30 40 50 60 70

We do not take into account publications without a DOI.
Statistics recalculated daily.

	1 2 3 4
Journal of Mathematical Analysis and Applications	Journal of Mathematical Analysis and Applications, 4, 11.76% Journal of Mathematical Analysis and Applications 4 publications, 11.76%
Nonlinear Analysis, Theory, Methods and Applications	Nonlinear Analysis, Theory, Methods and Applications, 4, 11.76% Nonlinear Analysis, Theory, Methods and Applications 4 publications, 11.76%
Springer Proceedings in Mathematics and Statistics	Springer Proceedings in Mathematics and Statistics, 3, 8.82% Springer Proceedings in Mathematics and Statistics 3 publications, 8.82%
SIAM Journal on Control and Optimization	SIAM Journal on Control and Optimization, 2, 5.88% SIAM Journal on Control and Optimization 2 publications, 5.88%
Applied Mathematics and Optimization	Applied Mathematics and Optimization, 2, 5.88% Applied Mathematics and Optimization 2 publications, 5.88%
Mathematische Annalen	Mathematische Annalen, 2, 5.88% Mathematische Annalen 2 publications, 5.88%
Communications on Pure & Applied Analysis	Communications on Pure & Applied Analysis, 2, 5.88% Communications on Pure & Applied Analysis 2 publications, 5.88%
Journal of the Mathematical Society of Japan	Journal of the Mathematical Society of Japan, 1, 2.94% Journal of the Mathematical Society of Japan 1 publication, 2.94%
Annales de l'Institut Henri Poincare (C) Analyse Non Lineaire	Annales de l'Institut Henri Poincare (C) Analyse Non Lineaire, 1, 2.94% Annales de l'Institut Henri Poincare (C) Analyse Non Lineaire 1 publication, 2.94%
Journal of Fixed Point Theory and Applications	Journal of Fixed Point Theory and Applications, 1, 2.94% Journal of Fixed Point Theory and Applications 1 publication, 2.94%
Bulletin of the Australian Mathematical Society	Bulletin of the Australian Mathematical Society, 1, 2.94% Bulletin of the Australian Mathematical Society 1 publication, 2.94%
Funkcialaj Ekvacioj	Funkcialaj Ekvacioj, 1, 2.94% Funkcialaj Ekvacioj 1 publication, 2.94%
Journal des Mathematiques Pures et Appliquees	Journal des Mathematiques Pures et Appliquees, 1, 2.94% Journal des Mathematiques Pures et Appliquees 1 publication, 2.94%
Nonlinear Differential Equations and Applications	Nonlinear Differential Equations and Applications, 1, 2.94% Nonlinear Differential Equations and Applications 1 publication, 2.94%
Indiana University Mathematics Journal	Indiana University Mathematics Journal, 1, 2.94% Indiana University Mathematics Journal 1 publication, 2.94%
Calculus of Variations and Partial Differential Equations	Calculus of Variations and Partial Differential Equations, 1, 2.94% Calculus of Variations and Partial Differential Equations 1 publication, 2.94%
SIAM Journal on Mathematical Analysis	SIAM Journal on Mathematical Analysis, 1, 2.94% SIAM Journal on Mathematical Analysis 1 publication, 2.94%
Communications in Partial Differential Equations	Communications in Partial Differential Equations, 1, 2.94% Communications in Partial Differential Equations 1 publication, 2.94%
Hiroshima Mathematical Journal	Hiroshima Mathematical Journal, 1, 2.94% Hiroshima Mathematical Journal 1 publication, 2.94%
Discrete and Continuous Dynamical Systems - Series B	Discrete and Continuous Dynamical Systems - Series B, 1, 2.94% Discrete and Continuous Dynamical Systems - Series B 1 publication, 2.94%
Discrete and Continuous Dynamical Systems	Discrete and Continuous Dynamical Systems, 1, 2.94% Discrete and Continuous Dynamical Systems 1 publication, 2.94%
Partial Differential Equations and Applications	Partial Differential Equations and Applications, 1, 2.94% Partial Differential Equations and Applications 1 publication, 2.94%
	1 2 3 4