Global well-posedness for a nonlocal semilinear pseudo-parabolic equation with conical degeneration

Global well-posedness for a nonlocal semilinear pseudo-parabolic equation with conical degeneration
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具有圆锥退化的非局部半线性伪抛物线方程的全局适定性

DOI:
10.1016/j.jde.2020.03.030
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发表时间:
2020-08
影响因子:
2.4
通讯作者:
尚亚东
尚亚东
中科院分区:
数学2区
文献类型:
--
作者:
狄华斐;尚亚东

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This paper deals with a class of nonlocal semilinear pseudo-parabolic equation with conical degeneration u t−△ B u t−△ B u=| u| p− 1 u− 1| B|∫ B| u| p− 1 u d x 1 x 1 d x′, on a manifold with conical singularity, where△ B is Fuchsian type Laplace operator with totally characteristic degeneracy on the boundary x 1= 0. By using the modified method of potential well with Galerkin approximation and concavity, the global existence, uniqueness, finite time blow up and asymptotic behavior of the solutions will be discussed at the low initial energy J (u 0)< d and critical initial energy J (u 0)= d, respectively. Furthermore, we investigate the global existence and finite time blow up of the solutions with the high initial energy J (u 0)> d by the variational method. Especially, we also derive the threshold results of global existence and nonexistence for the solutions at two different initial energy levels, ie low initial level and critical initial level.
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