非局部反应扩散方程的一致爆破行为 |
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引用本文: | 陈莉,陈玉娟.非局部反应扩散方程的一致爆破行为[J].南通工学院学报(自然科学版),2011(2):90-94. |
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作者姓名: | 陈莉 陈玉娟 |
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作者单位: | 南通大学理学院,江苏南通226007 |
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基金项目: | 南通市应用研究计划项目(K2010042) |
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摘 要: | 研究了具有Dirichlet边界条件的非线性非局部方程ut=Δu+∫Ωup(t,y)dy+kuq(t,x)的正解,对于径向对称且非增的初始数据,证明了当p〉q≥1时,解整体爆破,并得到爆破率估计((p-1)︱Ω︱)-1/p-1 ≤u(t,x).(T*-t)1/p-1 ≤((p-1)1/s1 (0))-1/p-1.
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关 键 词: | 非局部源 反应扩散方程 爆破 积分抛物方程 |
Uniform Blow-up Behavior for Nonlocal Reaction-Diffusion Equations |
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Authors: | CHEN Li CHEN Yu-juan |
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Institution: | (School of Sciences,Nantong University,Nantong 226007,China) |
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Abstract: | In this study,the positive solution of nonlinear nonlocal equation ut=Δu+∫Ωup(t,y)dy+kuq(t,x) with Dirichlet boundary condition is discussed.For radially symmetric and non-increasing initial data,it is shown that the solution blows up everywhere if p q ≥ 1.Moreover,the estimated blow-up rate of u(x,t) is determined in the case. |
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Keywords: | nonlocal source reaction-diffusion equation blow-up integro-parabolic equation |
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