Shichirô Oka

409 total citations
28 papers, 267 citations indexed

About

Shichirô Oka is a scholar working on Geometry and Topology, Mathematical Physics and Algebra and Number Theory. According to data from OpenAlex, Shichirô Oka has authored 28 papers receiving a total of 267 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Geometry and Topology, 15 papers in Mathematical Physics and 7 papers in Algebra and Number Theory. Recurrent topics in Shichirô Oka's work include Homotopy and Cohomology in Algebraic Topology (14 papers), Geometric and Algebraic Topology (7 papers) and Advanced Topics in Algebra (6 papers). Shichirô Oka is often cited by papers focused on Homotopy and Cohomology in Algebraic Topology (14 papers), Geometric and Algebraic Topology (7 papers) and Advanced Topics in Algebra (6 papers). Shichirô Oka collaborates with scholars based in Japan and Germany. Shichirô Oka's co-authors include Masahiro SUGAWARA, Hirosi Toda, Katsumi Shimomura, Osamu Nakamura and Kenichi Maruyama and has published in prestigious journals such as Proceedings of the Edinburgh Mathematical Society, Hiroshima Mathematical Journal and Japanese journal of mathematics.

In The Last Decade

Shichirô Oka

26 papers receiving 140 citations

Peers

Shichirô Oka
Thomas J. Lada United States
James P. Lin United States
Brayton Gray United States
Daniel S. Kahn United States
Hans Joachim Baues Germany
A. Zabrodsky Israel
W.T. van Est Netherlands
Zbigniew Fiedorowicz United States
A. Melle–Hernàndez Spain
Moira Chas United States
Thomas J. Lada United States
Shichirô Oka
Citations per year, relative to Shichirô Oka Shichirô Oka (= 1×) peers Thomas J. Lada

Countries citing papers authored by Shichirô Oka

Since Specialization
Citations

This map shows the geographic impact of Shichirô Oka'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 Shichirô Oka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Shichirô Oka more than expected).

Fields of papers citing papers by Shichirô Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Shichirô Oka. 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 Shichirô Oka. The network helps show where Shichirô Oka may publish in the future.

Co-authorship network of co-authors of Shichirô Oka

This figure shows the co-authorship network connecting the top 25 collaborators of Shichirô Oka. A scholar is included among the top collaborators of Shichirô Oka based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Shichirô Oka. Shichirô Oka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Oka, Shichirô. (1988). EXISTENCE OF THE UNSTABLE ADAMS MAP. Memoirs of the Faculty of Science Kyushu University Series A Mathematics. 42(2). 95–108. 6 indexed citations
2.
Oka, Shichirô, et al.. (1984). A NOTE ON THE QUATERNIONIC QUASI-PROJECTIVE SPACE. Memoirs of the Faculty of Science Kyushu University Series A Mathematics. 38(2). 277–284. 2 indexed citations
3.
Maruyama, Kenichi & Shichirô Oka. (1984). NOTE ON SOME EXOTIC MULTIPLICATION ON SU(n). Memoirs of the Faculty of Science Kyushu University Series A Mathematics. 38(1). 61–64. 2 indexed citations
4.
Oka, Shichirô. (1984). MULTIPLICATIONS ON THE MOORE SPECTRUM. Memoirs of the Faculty of Science Kyushu University Series A Mathematics. 38(2). 257–276. 19 indexed citations
5.
Oka, Shichirô & Katsumi Shimomura. (1982). On products of the $\beta $-elements in the stable homotopy of spheres. Hiroshima Mathematical Journal. 12(3). 12 indexed citations
6.
Oka, Shichirô. (1981). ON THE GROUP OF SELF-HOMOTOPY EQUIVALENCES OF H-SPACES OF LOW RANK, II. Memoirs of the Faculty of Science Kyushu University Series A Mathematics. 35(2). 307–323. 9 indexed citations
7.
Maruyama, Kenichi & Shichirô Oka. (1981). SELF-H-MAPS OF H-SPACES OF TYPE (3,7). Memoirs of the Faculty of Science Kyushu University Series A Mathematics. 35(2). 375–383. 4 indexed citations
8.
Oka, Shichirô. (1978). Corrections to: "Module spectra over the Moore spectrum". Hiroshima Mathematical Journal. 8(1). 1 indexed citations
9.
Oka, Shichirô. (1977). Module spectra over the Moore spectrum. Hiroshima Mathematical Journal. 7(1). 5 indexed citations
10.
Nakamura, Osamu & Shichirô Oka. (1977). Corrections to: ``Some differentials in the ${\rm mod}\ p$ Adams spectral sequence $(p\geq 5)$''. Hiroshima Mathematical Journal. 7(2). 2 indexed citations
11.
Nakamura, Osamu & Shichirô Oka. (1976). Some differentials in the ${\rm mod}\, p$ Adams spectral sequence $(p\geq 5)$. Hiroshima Mathematical Journal. 6(2). 5 indexed citations
12.
Oka, Shichirô. (1976). A new family in the stable homotopy groups of spheres. II. Hiroshima Mathematical Journal. 6(2). 19 indexed citations
13.
Oka, Shichirô & Hirosi Toda. (1975). 3-primary $\beta $-family in stable homotopy. Hiroshima Mathematical Journal. 5(3). 2 indexed citations
14.
Oka, Shichirô. (1975). The stable homotopy groups of spheres. III. Hiroshima Mathematical Journal. 5(3). 18 indexed citations
15.
Oka, Shichirô. (1975). A new family in the stable homotopy groups of spheres. Hiroshima Mathematical Journal. 5(1). 18 indexed citations
16.
Oka, Shichirô & Hirosi Toda. (1975). Non-triviality of an element in the stable homotopy groups of spheres. Hiroshima Mathematical Journal. 5(1). 10 indexed citations
17.
Oka, Shichirô. (1974). On the stable homotopy ring of Moore spaces. Hiroshima Mathematical Journal. 4(3). 13 indexed citations
18.
Oka, Shichirô, et al.. (1974). On the group of self-equivalences of a mapping cone. Hiroshima Mathematical Journal. 4(1). 37 indexed citations
19.
Oka, Shichirô. (1972). The stable homotopy groups of spheres. II. Hiroshima Mathematical Journal. 2(1). 13 indexed citations
20.
Oka, Shichirô. (1971). Some exact sequences of modules over the Steenrod algebra. Hiroshima Mathematical Journal. 1(1). 4 indexed citations

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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Thomas J. Lada Breakdown of academic impact, for papers by James P. Lin Breakdown of academic impact, for papers by Brayton Gray Breakdown of academic impact, for papers by Daniel S. Kahn Breakdown of academic impact, for papers by Hans Joachim Baues Breakdown of academic impact, for papers by A. Zabrodsky Breakdown of academic impact, for papers by W.T. van Est Breakdown of academic impact, for papers by Zbigniew Fiedorowicz Breakdown of academic impact, for papers by A. Melle–Hernàndez Breakdown of academic impact, for papers by Moira Chas
Rankless by CCL
2026