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J-GLOBAL ID：200901061140415917
Update date: Apr. 17, 2024
Umehara Morimichi
ウメハラ モリミチ | Umehara Morimichi
Affiliation and department：
Job title：
Associate Professor
Homepage URL (1)：
http://www.cc.miyazaki-u.ac.jp/umehara/
Research field (2)：
Basic analysis
, Mathematical physics and basic theory
Research keywords (3)：
Partial differential equations
, Fluid dynamics
, Astrophysics
Research theme for competitive and other funds (7)：
- 2014 - 2018 Mathematical analysis of motions of some self-gravitating fluids from astronomical phenomena
- 2014 - 2017 Mathematical Analysis of Free Boundary Problems in EMHD and Related Topics
- 2014 - 2017 天文現象における自己重力流体の運動の数学解析
- 2011 - 2015 Mathematical analysis of the non-Newtonian fluids flow
- 2011 - 2013 Mathematical modeling and analysis of astronomical phenomena on the basis of continuum approximation
- 2009 - 2011 Development of representation of elastic waves and investigation of their fundamental properties
- 2009 - 2010 Mathematical analysis of the continuum model of astronomical objects
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Papers (7)：
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Morimichi Umehara. Global existence of the spherically symmetric flow of a self-gravitating viscous gas. NONLINEAR DYNAMICS IN PARTIAL DIFFERENTIAL EQUATIONS. 2015. 64. 515-522
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Morimichi Umehara, Atusi Tani. FREE-BOUNDARY PROBLEM OF THE ONE-DIMENSIONAL EQUATIONS FOR A VISCOUS AND HEAT-CONDUCTIVE GASEOUS FLOW UNDER THE SELF-GRAVITATION. MATHEMATICAL MODELS & METHODS IN APPLIED SCIENCES. 2013. 23. 8. 1377-1419
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Morimichi Umehara. Temporally Global Behaviour of the Spherically Symmetric Flow of a Viscous and Self-Gravitating Gas. NUMERICAL ANALYSIS AND APPLIED MATHEMATICS, VOLS I-III. 2010. 1281. 924-927
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M. Umehara, A. Tani. Global existence and asymptotic behaviour of the one-dimensional motion of a self-gravitating viscous and reactive gas. In: Proceedings of international conference on: Nonlinear Phenomena with Energy Dissipation, Mathematical Analysis, Modeling and simulation, edited by P. Colli, A. Damlamian, N. Kenmochi, M. Mimura and J. Sprekels, GAKUTO International Ser. Mathematical S. 2008. 29. 407-424
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Morimichi Umehara, Atusi Tani. Global solvability of the free-boundary problem for one-dimensional motion of a self-gravitating viscous radiative and reactive gas. PROCEEDINGS OF THE JAPAN ACADEMY SERIES A-MATHEMATICAL SCIENCES. 2008. 84. 7. 123-128
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MISC (8)：
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UMEHARA, Morimichi. A free-boundary problem for the spherically symmetric motion of a viscous heat-conducting and self-gravitating gas. RIMS Kokyuroku (The 22th workshop on: Mathematical analysis in fluid and gas dynamics). 2022. 2215. 119-127
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Morimichi Umehara. Large-time existence of the spherically symmetric flow of a self-gravitating viscous gas. RIMS Kokyuroku (Unified understanding of self-organizations in N-body systems governed by long-range interaction). 2014. 1885. 105-115
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Umehara Morimichi. Free-boundary problem of the equations for flows of viscous heat-conducting and self-gravitating gas (Mathematical Analysis in Fluid and Gas Dynamics). RIMS Kokyuroku (The 15th workshop on: Mathematical analysis in fluid and gas dynamics). 2014. 1883. 75-83
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On the free-boundary problem for self-gravitating viscous gaseous models. Seminar on mathematical sciences. 2009. 12. 94-108
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Global solvability and some uniform-in-time bounds of the solution for self-gravitating viscous stellar models. RIMS Kokyuroku (The 9th workshop on: Mathematical analysis in fluid and gas dynamics). 2008. 1592. 116-129
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Lectures and oral presentations (17)：
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Existence of a spherically symmetric and steady flow of the heat-conducting and self-gravitating fluids
(2023)
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A spherically symmetric and steady flow describing the motion of a viscous gaseous star
(10th international congress on industrial and applied mathematics 2023)
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Steady and spherically symmetric flows of a viscous heat-conducting and self-gravitating gas bounded by the free-surface
(Mathematical Analysis on Fluid Dynamics and Conservation Laws (in honor of Professor Shinya Nishibata on the occasion of his 60th birthday) 2022)
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A free-boundary problem for the spherically symmetric motion of a viscous heat-conducting and self-gravitating gas
(RIMS workshop on: Mathematical analysis in fluid and gas dynamics (The 22th workshop) 2021)
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On spherically symmetric motions of a viscous heat-conducting and self-gravitating gas
(The fifth China-Japan workshop on mathematical topics from fluid mechanics 2015)
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Professional career (2)：
- 修士(理学) (慶應義塾大学)
- 博士(理学) (慶應義塾大学)
Association Membership(s) (1)：
The Mathematical Society of Japan
