Takeo Ohsawa

2.6k total citations
102 papers, 1.2k citations indexed

About

Takeo Ohsawa is a scholar working on Geometry and Topology, Applied Mathematics and Mathematical Physics. According to data from OpenAlex, Takeo Ohsawa has authored 102 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 78 papers in Geometry and Topology, 66 papers in Applied Mathematics and 23 papers in Mathematical Physics. Recurrent topics in Takeo Ohsawa's work include Geometry and complex manifolds (53 papers), Holomorphic and Operator Theory (47 papers) and Algebraic Geometry and Number Theory (27 papers). Takeo Ohsawa is often cited by papers focused on Geometry and complex manifolds (53 papers), Holomorphic and Operator Theory (47 papers) and Algebraic Geometry and Number Theory (27 papers). Takeo Ohsawa collaborates with scholars based in Japan, United States and Germany. Takeo Ohsawa's co-authors include Kenshô Takegoshi, Klas Diederich, Nessim Sibony, Gregor Herbort, Saburou Saitoh, Joseph A. Ball, Daniel Alpay, Kazuko Matsumoto, Junjirō Noguchi and Masa-atsu Yamada and has published in prestigious journals such as Cancer Letters, Annals of Mathematics and Lecture notes in mathematics.

In The Last Decade

Takeo Ohsawa

97 papers receiving 1.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Takeo Ohsawa Japan	20	1.0k	895	336	92	32	102	1.2k
Zbigniew Słodkowski United States	12	391 0.4×	511 0.6×	311 0.9×	80 0.9×	66 2.1×	54	658
Pekka Tukia Finland	16	796 0.8×	592 0.7×	415 1.2×	20 0.2×	67 2.1×	40	908
Mario Bonk United States	17	705 0.7×	658 0.7×	268 0.8×	11 0.1×	79 2.5×	45	844
Peter Ebenfelt United States	17	634 0.6×	1.1k 1.2×	321 1.0×	236 2.6×	58 1.8×	65	1.1k
Steven R. Bell United States	18	563 0.6×	908 1.0×	150 0.4×	110 1.2×	40 1.3×	65	988
Paulo Sad Brazil	10	695 0.7×	370 0.4×	492 1.5×	44 0.5×	44 1.4×	27	835
Josip Globevnik Slovenia	16	390 0.4×	615 0.7×	251 0.7×	80 0.9×	51 1.6×	85	739
H. Alexander United States	14	321 0.3×	400 0.4×	120 0.4×	58 0.6×	64 2.0×	46	516
L. E. Jones United States	16	687 0.7×	154 0.2×	639 1.9×	121 1.3×	68 2.1×	63	806
Gilbert Hector France	10	304 0.3×	189 0.2×	254 0.8×	54 0.6×	30 0.9×	23	408

Countries citing papers authored by Takeo Ohsawa

Since Specialization

Citations

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

Fields of papers citing papers by Takeo Ohsawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takeo Ohsawa

This figure shows the co-authorship network connecting the top 25 collaborators of Takeo Ohsawa. A scholar is included among the top collaborators of Takeo Ohsawa 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 Takeo Ohsawa. Takeo Ohsawa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Ohsawa, Takeo. (2024). L2 ∂¯-cohomology with weights and bundle convexity of certain locally pseudoconvex domains. Kyoto journal of mathematics. 64(4).

Ohsawa, Takeo. (2013). Nonexistence of Certain Levi Flat Hypersurfaces in Kähler Manifolds from the Viewpoint of Positive Normal Bundles. Publications of the Research Institute for Mathematical Sciences. 49(2). 229–239. 5 indexed citations

Ohsawa, Takeo. (2012). On Projectively Embeddable Complex-Foliated Structures. Publications of the Research Institute for Mathematical Sciences. 48(3). 735–747. 2 indexed citations

Ohsawa, Takeo. (2012). On the complement of effective divisors with semipositive normal bundle. Kyoto journal of mathematics. 52(3). 3 indexed citations

Ohsawa, Takeo. (2010). A Tower of Riemann Surfaces whose Bergman Kernels Jump at the Roof. Publications of the Research Institute for Mathematical Sciences. 46(3). 473–478. 3 indexed citations

Ohsawa, Takeo, et al.. (2009). On a Curvature Property of Effective Divisors and Its Application to Sheaf Cohomology. Publications of the Research Institute for Mathematical Sciences. 45(4). 1033–1039. 3 indexed citations

Ohsawa, Takeo. (2007). An Interpolation Theorem on Cycle Spaces for Functions Arising as Integrals of $\bar ∂$ Closed Forms. Publications of the Research Institute for Mathematical Sciences. 43(4). 911–922. 1 indexed citations

Diederich, Klas & Takeo Ohsawa. (2007). On the Displacement Rigidity of Levi Flat Hypersurfaces—The Case of Boundaries of Disc Bundles Over Compact Riemann Surfaces. Publications of the Research Institute for Mathematical Sciences. 43(1). 171–180. 7 indexed citations

Ohsawa, Takeo. (2007). A remark on pseudoconvex domains with analytic complements in compact Kähler manifolds. Kyoto journal of mathematics. 47(1). 3 indexed citations

10.

Ohsawa, Takeo. (2006). A Levi-flat in a Kummer surface whose complement is strongly pseudoconvex. Osaka Journal of Mathematics. 43(4). 747–750. 4 indexed citations

11.

Ohsawa, Takeo. (2006). On the Levi-ﬂats in Complex Tori of Dimension Two. Publications of the Research Institute for Mathematical Sciences. 42(2). 361–377. 8 indexed citations

12.

Ohsawa, Takeo. (2006). Counting the Patterns on Some Symmetric Polyhedrons-Rotations in a Question of Japan Mathematics Contest. Forma. 21(2). 169–173. 1 indexed citations

13.

Ohsawa, Takeo. (2005). On a Curvature Condition that Implies a Cohomology Injectivity Theorem of Kollár–Skoda Type. Publications of the Research Institute for Mathematical Sciences. 41(3). 565–577. 16 indexed citations

14.

Ohsawa, Takeo. (1995). Addendum to “On the Bergman kernel of hyperconvex domains”, Nagoya Math. J. 129 (1993), 43–52. Nagoya Mathematical Journal. 137. 145–148. 14 indexed citations

15.

Diederich, Klas & Takeo Ohsawa. (1992). A Continuity Principle for the Bergman Kernel Function. Publications of the Research Institute for Mathematical Sciences. 28(3). 495–501. 2 indexed citations

16.

Ohsawa, Takeo. (1992). On the L² cohomology of complex spaces II. Nagoya Mathematical Journal. 127. 49–59. 2 indexed citations

17.

Noguchi, Junjirō & Takeo Ohsawa. (1991). Prospects in Complex Geometry. Lecture notes in mathematics. 5 indexed citations

18.

Ohsawa, Takeo & Kenshô Takegoshi. (1988). Hodge spectral sequence on pseudoconvex domains. Mathematische Zeitschrift. 197(1). 1–12. 24 indexed citations

19.

Ohsawa, Takeo. (1984). Completeness of Noncompact Analytic Spaces. Publications of the Research Institute for Mathematical Sciences. 20(3). 683–692. 29 indexed citations

20.

Ohsawa, Takeo. (1981). On analytic families of submanifolds and holomorphical convexity of neighbourhoods of P1. Journal of the Mathematical Society of Japan. 33(4). 1 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.

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