Sampei Usui
Impact in
- Geometry and Topology top 5%
- Algebraic Geometry and Number Theory
- Geometry and complex manifolds
- Advanced Differential Equations and Dynamical Systems
- Algebraic structures and combinatorial models
- Mathematical Physics top 5%
- Advanced Algebra and Geometry
- Homotopy and Cohomology in Algebraic Topology
Papers in
-
- Algebraic Geometry and Number Theory 24
- Advanced Differential Equations and Dynamical Systems 4
- Mathematics and Applications 4
- Geometric and Algebraic Topology 4
- Algebraic structures and combinatorial models 2
-
- Advanced Algebra and Geometry 16
- Homotopy and Cohomology in Algebraic Topology 11
- Mathematical Dynamics and Fractals 4
- Co-authors
- Kazuya Katô (10 shared papers)Chikara Nakayama (10 shared papers)Kazuya Kato (1 shared paper)Kazuya Kato (2 shared papers)Masa-Hiko Saito (2 shared papers)
- Journals
- Kyoto journal of mathematics (4 papers)Journal of Algebraic Geometry (3 papers)Tohoku Mathematical Journal (3 papers)Duke Mathematical Journal (2 papers)Astérisque (1 paper)
- Partner nations
- JapanUnited States
In The Last Decade
Sampei Usui
28 papers receiving 155 citations
Peers
Comparison fields: 5 of 13
- Geometry and Topology 188
- Mathematical Physics 148
- Algebra and Number Theory 27
- Applied Mathematics 21
- Discrete Mathematics and Combinatorics 6
Countries citing papers authored by Sampei Usui
This map shows the geographic impact of Sampei Usui's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Sampei Usui with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sampei Usui more than expected).
Fields of papers citing papers by Sampei Usui
This network shows the impact of papers produced by Sampei Usui. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Sampei Usui. The network helps show where Sampei Usui may publish in the future.
Co-authors
The 5 scholars most cited alongside Sampei Usui, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 32 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | 1984 | 27 | |
| 2 | 2009 | 21 | |
| 3 | 2007 | 17 | |
| 4 | Classifying Spaces of Degenerating Polarized Hodge Structures. | 2008 | 16 |
| 5 | 2001 | 12 | |
| 6 | 1983 | 12 | |
| 7 | 1981 | 8 | |
| 8 | 2010 | 7 | |
| 9 | 1976 | 7 | |
| 10 | 2010 | 6 | |
| 11 | 1993 | 6 | |
| 12 | 2011 | 6 | |
| 13 | Recovery of Vanishing Cycles by Log Geometry : Case of Several Variables | 1999 | 5 |
| 14 | 2010 | 5 | |
| 15 | 1991 | 4 | |
| 16 | 2013 | 4 | |
| 17 | 2008 | 4 | |
| 18 | 2011 | 3 | |
| 19 | 1977 | 3 | |
| 20 | 1995 | 3 |
About Sampei Usui
Sampei Usui is a scholar working on Geometry and Topology, Mathematical Physics, Algebra and Number Theory, Computational Mechanics and Computational Theory and Mathematics, having authored 32 papers that have together received 192 indexed citations. Recurring topics across this work include Algebraic Geometry and Number Theory (24 papers), Advanced Algebra and Geometry (16 papers), Homotopy and Cohomology in Algebraic Topology (11 papers), Advanced Differential Equations and Dynamical Systems (4 papers), Mathematics and Applications (4 papers), Geometric and Algebraic Topology (4 papers), Mathematical Dynamics and Fractals (4 papers) and Algebraic structures and combinatorial models (2 papers). The work is most often cited by research in Geometry and Topology (188 citations), Mathematical Physics (148 citations), Algebra and Number Theory (27 citations), Applied Mathematics (21 citations) and Discrete Mathematics and Combinatorics (6 citations). Sampei Usui has collaborated with scholars based in Japan and United States. Frequent co-authors include Kazuya Katô, Chikara Nakayama, Kazuya Kato, Kazuya Kato and Masa-Hiko Saito. Their work appears in journals such as Kyoto journal of mathematics, Journal of Algebraic Geometry, Tohoku Mathematical Journal, Duke Mathematical Journal and Astérisque.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.