Motohiro Sobajima

526 total citations
43 papers, 291 citations indexed

About

Motohiro Sobajima is a scholar working on Mathematical Physics, Applied Mathematics and Computational Theory and Mathematics. According to data from OpenAlex, Motohiro Sobajima has authored 43 papers receiving a total of 291 indexed citations (citations by other indexed papers that have themselves been cited), including 38 papers in Mathematical Physics, 27 papers in Applied Mathematics and 22 papers in Computational Theory and Mathematics. Recurrent topics in Motohiro Sobajima's work include Advanced Mathematical Physics Problems (23 papers), Advanced Mathematical Modeling in Engineering (22 papers) and Stability and Controllability of Differential Equations (20 papers). Motohiro Sobajima is often cited by papers focused on Advanced Mathematical Physics Problems (23 papers), Advanced Mathematical Modeling in Engineering (22 papers) and Stability and Controllability of Differential Equations (20 papers). Motohiro Sobajima collaborates with scholars based in Japan, Italy and Netherlands. Motohiro Sobajima's co-authors include Masahiro Ikeda, Giorgio Metafune, Chiara Spina, Kyouhei Wakasa, Yuta Wakasugi, Noboru Okazawa, Tomomi Yokota, Philippe Clément, Hideo Kubo and Wei Dai and has published in prestigious journals such as Journal of Mathematical Analysis and Applications, Journal of Differential Equations and Nonlinear Analysis.

In The Last Decade

Motohiro Sobajima

38 papers receiving 270 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Motohiro Sobajima Japan 9 240 178 137 94 52 43 291
Daniele Del Santo Italy 7 200 0.8× 146 0.8× 81 0.6× 58 0.6× 42 0.8× 32 237
Sandra Lucente Italy 8 261 1.1× 196 1.1× 147 1.1× 50 0.5× 72 1.4× 28 299
Jinmyoung Seok South Korea 12 358 1.5× 384 2.2× 54 0.4× 167 1.8× 54 1.0× 31 452
Stefan Le Coz France 11 253 1.1× 87 0.5× 53 0.4× 40 0.4× 173 3.3× 18 307
Marco Ghimenti Italy 9 245 1.0× 296 1.7× 35 0.3× 150 1.6× 59 1.1× 39 364
Mihai Mariş France 10 202 0.8× 127 0.7× 25 0.2× 82 0.9× 110 2.1× 15 253
Yuta Wakasugi Japan 10 255 1.1× 162 0.9× 169 1.2× 50 0.5× 51 1.0× 35 286
Clayton Bjorland United States 8 105 0.4× 191 1.1× 51 0.4× 85 0.9× 23 0.4× 10 208
Jianqing Chen China 13 287 1.2× 392 2.2× 76 0.6× 267 2.8× 65 1.3× 59 495
Luca Fanelli Italy 14 499 2.1× 199 1.1× 59 0.4× 56 0.6× 101 1.9× 41 527

Countries citing papers authored by Motohiro Sobajima

Since Specialization
Citations

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

Fields of papers citing papers by Motohiro Sobajima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Motohiro Sobajima

This figure shows the co-authorship network connecting the top 25 collaborators of Motohiro Sobajima. A scholar is included among the top collaborators of Motohiro Sobajima 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 Motohiro Sobajima. Motohiro Sobajima 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.
Sobajima, Motohiro, et al.. (2024). Lifespan estimates for semilinear damped wave equation in a two-dimensional exterior domain. Calculus of Variations and Partial Differential Equations. 63(9).
2.
Sobajima, Motohiro, Motohiro Sobajima, & Yuta Wakasugi. (2023). Asymptotic expansion of solutions to the wave equation with space-dependent damping. Asymptotic Analysis. 134(1-2). 241–279. 1 indexed citations
3.
Sobajima, Motohiro. (2023). Weighted energy method for semilinear wave equations with time-dependent damping. Journal of Evolution Equations. 23(3). 1 indexed citations
4.
Sobajima, Motohiro. (2023). Asymptotic behavior for wave equations with space-dependent damping in a weighted energy class. Communications on Pure & Applied Analysis. 22(7). 2078–2098.
5.
Sobajima, Motohiro. (2022). On global existence for semilinear wave equations with space-dependent critical damping. Journal of the Mathematical Society of Japan. 75(2).
6.
Sobajima, Motohiro. (2022). Higher-order asymptotic expansion for abstract linear second-order differential equations with time-dependent coefficients. Journal of Differential Equations. 327. 226–258. 1 indexed citations
7.
Sobajima, Motohiro & Yuta Wakasugi. (2021). Supersolutions for parabolic equations with unbounded or degenerate diffusion coefficients and their applications to some classes of parabolic and hyperbolic equations. Journal of the Mathematical Society of Japan. 73(4). 4 indexed citations
8.
Dai, Wei, Hideo Kubo, & Motohiro Sobajima. (2020). Blow-up for Strauss type wave equation with damping and potential. Nonlinear Analysis Real World Applications. 57. 103195–103195. 6 indexed citations
9.
Sobajima, Motohiro & Kyouhei Wakasa. (2019). Finite time blowup of solutions to semilinear wave equation in an exterior domain. Journal of Mathematical Analysis and Applications. 484(1). 123667–123667. 4 indexed citations
10.
Ikeda, Masahiro, Motohiro Sobajima, & Kyouhei Wakasa. (2019). Blow-up phenomena of semilinear wave equations and their weakly coupled systems. Journal of Differential Equations. 267(9). 5165–5201. 38 indexed citations
11.
Metafune, Giorgio, et al.. (2019). Rellich inequalities in bounded domains. Mathematische Annalen. 379(1-2). 765–824. 8 indexed citations
12.
Ikeda, Masahiro & Motohiro Sobajima. (2018). Remark on upper bound for lifespan of solutions to semilinear evolution equations in a two-dimensional exterior domain. Journal of Mathematical Analysis and Applications. 470(1). 318–326. 10 indexed citations
13.
Metafune, Giorgio, Noboru Okazawa, Motohiro Sobajima, & Chiara Spina. (2016). Scale invariant elliptic operators with singular coefficients. Journal of Evolution Equations. 16(2). 391–439. 10 indexed citations
14.
Sobajima, Motohiro & Yuta Wakasugi. (2016). Diffusion phenomena for the wave equation with space-dependent damping in an exterior domain. Journal of Differential Equations. 261(10). 5690–5718. 14 indexed citations
15.
Metafune, Giorgio, Motohiro Sobajima, & Chiara Spina. (2015). Rellich and Calderón–Zygmund inequalities for an operator with discontinuous coefficients. Annali di Matematica Pura ed Applicata (1923 -). 195(4). 1305–1331. 6 indexed citations
16.
Okazawa, Noboru, Motohiro Sobajima, & Tomomi Yokota. (2014). Existence of solutions to heat equations with singular lower order terms. Journal of Differential Equations. 256(11). 3568–3593. 2 indexed citations
17.
Sobajima, Motohiro. (2014). A class of relatively bounded perturbations for generators of bounded analytic semigroups in Banach spaces. Journal of Mathematical Analysis and Applications. 416(2). 855–861. 2 indexed citations
18.
Sobajima, Motohiro. (2013). $L^p$-theory for second-order elliptic operators with unbounded drift (New developments of the theory of evolution equations in the analysis of non-equilibria). Kyoto University Research Information Repository (Kyoto University). 1856. 75–88. 1 indexed citations
19.
Sobajima, Motohiro. (2012). L p -theory for second-order elliptic operators with unbounded coefficients. Journal of Evolution Equations. 12(4). 957–971. 7 indexed citations
20.
Clément, Philippe, Noboru Okazawa, Motohiro Sobajima, & Tomomi Yokota. (2012). A simple approach to the Cauchy problem for complex Ginzburg–Landau equations by compactness methods. Journal of Differential Equations. 253(4). 1250–1263. 10 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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