| Project/Area Number |
23540196
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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 | Gifu University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
NAITO Manabu 愛媛大学, 大学院理工学研究科, 教授 (00106791)
KAMO Ken-ichi 札幌医科大学, 医療人育成センター, 准教授 (10404740)
TANIGAWA Tomoyuki 熊本大学, 教育学部, 准教授 (10332008)
TERAMOTO Tomomitsu 尾道大学, 経済情報学部, 助教 (20398465)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | 常微分方程式 / 漸近挙動 / 波動方程式 / 逆問題 / 準線形 / 解の爆発 / フーリエ解析 / 漸近解析 / Karamata関数 / 楕円型方程式 / 競争系 |
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| Outline of Final Research Achievements |
(1) We found the asymptotic forms of solutions of quasilinear ordinary differential equations. In particular, we found asymptotic behavior of positive solutions belonging to classes of Karamata functions under considerably weak assumptions. We could also find existence results for so-called intermediate growth solutions. Finally, we could solve inverse problems concerning to blow-up times.
(2) We could analyze linear hyperbolic equations with damping terms based on Fourier Analysis. In order to examine asymptotic behavior of solutions of reaction-diffusion systems, we analyzed Lanchester type ordinary differential systems. We found that, as in the classical systems, there are critical values for initial data classifying asymptotic behavior of solutions essentially.
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