Masami Sakai

609 total citations
42 papers, 350 citations indexed

About

Masami Sakai is a scholar working on Geometry and Topology, Mathematical Physics and Algebra and Number Theory. According to data from OpenAlex, Masami Sakai has authored 42 papers receiving a total of 350 indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Geometry and Topology, 22 papers in Mathematical Physics and 21 papers in Algebra and Number Theory. Recurrent topics in Masami Sakai's work include Advanced Topology and Set Theory (37 papers), Rings, Modules, and Algebras (21 papers) and Advanced Banach Space Theory (17 papers). Masami Sakai is often cited by papers focused on Advanced Topology and Set Theory (37 papers), Rings, Modules, and Algebras (21 papers) and Advanced Banach Space Theory (17 papers). Masami Sakai collaborates with scholars based in Japan, Italy and China. Masami Sakai's co-authors include Gary Gruenhage, Yoshio Tanaka, Angelo Bella, Chuan Liu, Sukeji Suzuki, Kenichiro Mori, Kazuo Ikeda and Takashi Amemiya and has published in prestigious journals such as Annals of the New York Academy of Sciences, Journal of Chromatography A and Pacific Journal of Mathematics.

In The Last Decade

Masami Sakai

35 papers receiving 306 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masami Sakai Japan 11 321 200 130 120 75 42 350
Paul J. Szeptycki Canada 8 339 1.1× 188 0.9× 149 1.1× 149 1.2× 85 1.1× 40 356
J. Gerlits Hungary 6 330 1.0× 200 1.0× 129 1.0× 138 1.1× 66 0.9× 17 349
Tsugunori Nogura Japan 11 320 1.0× 217 1.1× 102 0.8× 110 0.9× 105 1.4× 43 345
S. Garcı́a-Ferreira Mexico 8 253 0.8× 150 0.8× 122 0.9× 93 0.8× 63 0.8× 64 272
Dmitri Shakhmatov Japan 11 390 1.2× 273 1.4× 208 1.6× 124 1.0× 52 0.7× 52 418
Michael Hrušák Mexico 12 406 1.3× 211 1.1× 208 1.6× 199 1.7× 45 0.6× 72 441
Ireneusz Recław Poland 9 207 0.6× 124 0.6× 112 0.9× 85 0.7× 54 0.7× 26 265
William G. Fleissner United States 12 422 1.3× 282 1.4× 127 1.0× 201 1.7× 54 0.7× 54 447
Bohuslav Balcar Czechia 11 321 1.0× 179 0.9× 148 1.1× 203 1.7× 24 0.3× 40 396
Peter Nyikos United States 13 482 1.5× 318 1.6× 228 1.8× 222 1.9× 83 1.1× 73 561

Countries citing papers authored by Masami Sakai

Since Specialization
Citations

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

Fields of papers citing papers by Masami Sakai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masami Sakai

This figure shows the co-authorship network connecting the top 25 collaborators of Masami Sakai. A scholar is included among the top collaborators of Masami Sakai 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 Masami Sakai. Masami Sakai 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.
Sakai, Masami, et al.. (2017). Remarks on monotone (weak) Lindelöfness. Topology and its Applications. 225. 195–205.
2.
Sakai, Masami. (2017). The projective Menger property and an embedding of S into function spaces. Topology and its Applications. 220. 118–130. 5 indexed citations
3.
Sakai, Masami, et al.. (2017). On selective absolute star-Lindelöfness. Topology and its Applications. 221. 517–523. 6 indexed citations
4.
Bella, Angelo & Masami Sakai. (2015). Compactifications of a Pixley–Roy hyperspace. Topology and its Applications. 196. 173–182. 2 indexed citations
5.
Sakai, Masami. (2014). Quotient maps onto submaximal spaces. Topology and its Applications. 164. 248–258. 1 indexed citations
6.
Sakai, Masami. (2014). Star versions of the Menger property. Topology and its Applications. 176. 22–34. 18 indexed citations
7.
Bella, Angelo & Masami Sakai. (2013). Tight points of Pixley–Roy hyperspaces. Topology and its Applications. 160(16). 2061–2068. 4 indexed citations
8.
Sakai, Masami. (2013). The Pytkeev property and the Reznichenko property in function spaces. Note di matematica/Note di matematica - Università degli studi di Lecce. 22(2). 43–52. 7 indexed citations
9.
Sakai, Masami. (2012). Selective separability of Pixley–Roy hyperspaces. Topology and its Applications. 159(6). 1591–1598. 16 indexed citations
10.
Sakai, Masami. (2010). On k-networks and weak bases for spaces. Topology and its Applications. 157(15). 2383–2388. 1 indexed citations
11.
Sakai, Masami. (2008). Mapping theorems on $\aleph$-spaces. Commentationes Mathematicae Universitatis Carolinae. 49(1). 163–167. 1 indexed citations
12.
Sakai, Masami. (2008). Function spaces with a countable cs∗-network at a point. Topology and its Applications. 156(1). 117–123. 20 indexed citations
13.
Sakai, Masami. (2007). WEAK-OPEN MAPS AND SEQUENCE-COVERING MAPS. Scientiae mathematicae Japonicae. 66(1). 67–71. 2 indexed citations
14.
Sakai, Masami. (2006). COUNTEREXAMPLES ON GENERALIZED METRIC SPACES. Scientiae mathematicae Japonicae. 64(1). 73–76. 3 indexed citations
15.
Sakai, Masami. (2006). κ-Fréchet Urysohn property of Ck(X). Topology and its Applications. 154(7). 1516–1520. 3 indexed citations
16.
Sakai, Masami. (2006). The sequence selection properties of Cp(X). Topology and its Applications. 154(3). 552–560. 23 indexed citations
17.
Sakai, Masami. (2006). Two properties of Cp(X) weaker than the Fréchet Urysohn property. Topology and its Applications. 153(15). 2795–2804. 15 indexed citations
18.
Sakai, Masami. (1992). On embeddings into $C_p(X)$ where $X$ is Lindelöf. Commentationes Mathematicae Universitatis Carolinae. 33(1). 165–171. 2 indexed citations
19.
Sakai, Masami. (1992). Non-(ω, ω1)-regular ultrafilters and perfect κ-normality of product spaces. Topology and its Applications. 45(3). 165–172. 2 indexed citations
20.
Sakai, Masami. (1984). On $CL$-isocompactness and weak Borel completeness. Tsukuba Journal of Mathematics. 8(2). 2 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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