Tsuyoshi Andô

3.1k total citations · 1 hit paper
64 papers, 2.0k citations indexed

About

Tsuyoshi Andô is a scholar working on Applied Mathematics, Computational Theory and Mathematics and Mathematical Physics. According to data from OpenAlex, Tsuyoshi Andô has authored 64 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Applied Mathematics, 24 papers in Computational Theory and Mathematics and 17 papers in Mathematical Physics. Recurrent topics in Tsuyoshi Andô's work include Matrix Theory and Algorithms (17 papers), Mathematical Inequalities and Applications (12 papers) and Holomorphic and Operator Theory (11 papers). Tsuyoshi Andô is often cited by papers focused on Matrix Theory and Algorithms (17 papers), Mathematical Inequalities and Applications (12 papers) and Holomorphic and Operator Theory (11 papers). Tsuyoshi Andô collaborates with scholars based in Japan, United States and Canada. Tsuyoshi Andô's co-authors include Fumio Kubo, Fumio Hiai, Xingzhi Zhan, Mau-Hsiang Shih, Hiroaki Nishimura, Keiji Nagai, N. Miyanaga, K. Mima, T. Norimatsu and Yasukazu Izawa and has published in prestigious journals such as Physical Review Letters, Reviews of Modern Physics and Applied Physics Letters.

In The Last Decade

Tsuyoshi Andô

61 papers receiving 1.5k citations

Hit Papers

Means of positive linear operators 1980 2026 1995 2010 1980 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Means of positive linear operators
    1980 531 citations Tsuyoshi Andô et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tsuyoshi Andô Japan 20 1.1k 620 483 332 312 64 2.0k
Leonard Gross United States 22 1.3k 1.2× 551 0.9× 1.4k 2.8× 209 0.6× 276 0.9× 51 2.5k
R. Seeley United States 21 954 0.9× 554 0.9× 1.1k 2.3× 178 0.5× 202 0.6× 42 1.8k
A. I. Markushevich United States 8 527 0.5× 211 0.3× 257 0.5× 130 0.4× 312 1.0× 15 1.3k
M. A. Naĭmark United States 6 684 0.6× 624 1.0× 902 1.9× 172 0.5× 120 0.4× 16 1.7k
Heinz Langer Germany 24 909 0.8× 1.1k 1.8× 1.5k 3.2× 251 0.8× 84 0.3× 141 2.3k
Bernard Helffer France 33 1.1k 1.0× 1.3k 2.1× 2.8k 5.8× 651 2.0× 329 1.1× 217 3.9k
Joachim Weidmann Germany 16 659 0.6× 732 1.2× 1.4k 2.9× 334 1.0× 74 0.2× 30 1.9k
Eli Berger Israel 14 235 0.2× 363 0.6× 168 0.3× 248 0.7× 159 0.5× 40 1.2k
Peter D. Hislop United States 18 291 0.3× 546 0.9× 1.1k 2.4× 412 1.2× 73 0.2× 79 1.7k
Yves Colin de Verdìère France 24 464 0.4× 453 0.7× 1.1k 2.2× 230 0.7× 572 1.8× 73 1.8k

Countries citing papers authored by Tsuyoshi Andô

Since Specialization
Citations

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

Fields of papers citing papers by Tsuyoshi Andô

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tsuyoshi Andô

This figure shows the co-authorship network connecting the top 25 collaborators of Tsuyoshi Andô. A scholar is included among the top collaborators of Tsuyoshi Andô 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 Tsuyoshi Andô. Tsuyoshi Andô 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.
Yamaguchi, Teruhide, Takashi Ogawa, Tsuyoshi Andô, et al.. (2024). Points-to-consider: the mRNA vaccine reflection paper. 6(1). 20–27. 1 indexed citations
2.
Andô, Tsuyoshi, et al.. (2020). Rajendra Bhatia and his mathematical achievements. Advances in Operator Theory. 5(3). 850–863. 1 indexed citations
3.
Andô, Tsuyoshi. (2016). Square inequality and strong order relation. Advances in Operator Theory. 1(1). 1–7. 1 indexed citations
4.
Andô, Tsuyoshi & Minghua Lin. (2015). Proof of a conjectured lower bound on the chromatic number of a graph. Linear Algebra and its Applications. 485. 480–484. 16 indexed citations
5.
Miyata, Toshio, Tsuyoshi Andô, Kanako Watanabe, et al.. (2014). Drug discovery in renal disease—towards a more efficient framework. Nature Reviews Nephrology. 10(5). 290–296. 6 indexed citations
6.
Andô, Tsuyoshi. (2011). Unbounded or bounded idempotent operators in Hilbert space. Linear Algebra and its Applications. 438(10). 3769–3775. 15 indexed citations
7.
Takahara, Junichi, et al.. (2010). Anticoagulant activity of enzymatically synthesized amylose derivatives containing carboxy or sulfonate groups. Acta Biomaterialia. 6(8). 3138–3145. 7 indexed citations
8.
Andô, Tsuyoshi. (2009). Projections in Krein spaces. Linear Algebra and its Applications. 431(12). 2346–2358. 18 indexed citations
9.
Andô, Tsuyoshi. (2009). Trace-Inequalities and Matrix-Convex Functions. Fixed Point Theory and Applications. 2010(1). 1 indexed citations
10.
Andô, Tsuyoshi, Raúl E. Curto, Il Bong Jung, & Woo Young Lee. (2008). Recent Advances in Operator Theory and Applications. Birkhäuser Basel eBooks. 4 indexed citations
11.
Fujioka, Shinsuke, Tsuyoshi Andô, Hirokazu Sakaguchi, et al.. (2008). Neutral Debris Mitigation in Laser Produced Extreme Ultraviolet Light Source by the Use of Minimum-Mass Tin Target. Applied Physics Express. 1. 56001–56001. 22 indexed citations
12.
Murakami, M., et al.. (2006). Simple Analytical Model for Conversion Efficiency of Extreme Ultraviolet Radiation in Laser-produced Plasmas (Phys. Plasmas Vol. 13 (2006) 033107). 1 indexed citations
13.
Fujioka, Shinsuke, Hiroaki Nishimura, Katsunobu Nishihara, et al.. (2005). Opacity Effect on Extreme Ultraviolet Radiation from Laser-Produced Tin Plasmas. Physical Review Letters. 95(23). 235004–235004. 139 indexed citations
14.
Andô, Tsuyoshi, et al.. (1995). Sea urchin egg tropomyosin isoforms with muscle-type and nonmuscle-type antigenicities. Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology. 112(3). 415–427. 7 indexed citations
15.
Andô, Tsuyoshi & Fumio Hiai. (1994). Log majorization and complementary Golden-Thompson type inequalities. Linear Algebra and its Applications. 197-198. 113–131. 147 indexed citations
16.
Andô, Tsuyoshi, et al.. (1992). Another approach to the strong Parrott theorem. Journal of Mathematical Analysis and Applications. 171(1). 125–130. 4 indexed citations
17.
Alzer, Horst, et al.. (1990). The inequalities of W. Sierpinski and Ky Fan. Journal of Mathematical Analysis and Applications. 149(2). 497–512. 6 indexed citations
18.
Andô, Tsuyoshi, et al.. (1976). Characterizations of operations derived from network connections. Journal of Mathematical Analysis and Applications. 53(3). 539–549. 31 indexed citations
19.
Andô, Tsuyoshi. (1973). Closed range theorems for convex sets and linear liftings. Pacific Journal of Mathematics. 44(2). 393–410. 57 indexed citations
20.
Andô, Tsuyoshi, et al.. (1970). Positive selfadjoint extensions of positive symmetric operators. Tohoku Mathematical Journal. 22(1). 74 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 Leonard Gross Breakdown of academic impact, for papers by R. Seeley Breakdown of academic impact, for papers by A. I. Markushevich Breakdown of academic impact, for papers by M. A. Naĭmark Breakdown of academic impact, for papers by Heinz Langer Breakdown of academic impact, for papers by Bernard Helffer Breakdown of academic impact, for papers by Joachim Weidmann Breakdown of academic impact, for papers by Eli Berger Breakdown of academic impact, for papers by Peter D. Hislop Breakdown of academic impact, for papers by Yves Colin de Verdìère
Rankless by CCL
2026