| Project/Area Number |
26400116
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Basic analysis
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| Research Institution | University of Tsukuba (2016-2017)
Okayama University (2014-2015) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
田村 英男 岡山大学, 自然科学研究科, 特命教授 (30022734)
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| Co-Investigator(Renkei-kenkyūsha) |
KIYOHARA Kazuyoshi 岡山大学, 自然科学研究科, 教授 (80153245)
YAMADA Hirofumi 熊本大学, 大学院先端科学研究部(理), 教授 (40192794)
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| Research Collaborator |
GONZALEZ Fulton タフツ大学, 数学教室, 教授
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 対称空間 / シュレディンガー方程式 / 基本解 / 幾何解析 / ガウス和 / 平均値作用素 / 反応拡散系 / 時間大域解 / 爆発解 / 偶数重複度条件 |
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| Outline of Final Research Achievements |
In this research, we studied the following two subjects (A) and (B) which are closely related to geometric analysis of Schoedinger equations on symmetric spaces.(A) Mean value operators on symmetric spaces. (B) A certain reaction-diffusion system with the fractional Laplacian. Briefly our results are as follows.(A) We proved that under some conditions the mean value operator is surjective as an operator on the space of smooth functions on noncompact symmetric spaces. (B) We proved the existence of a global in time solution under some conditions on the nonlinear terms. We also determined the critical exponent for blowup of the solution. Moreover, we gave the optimal estimate for the lifespan of the blowup solution.
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