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|標題:||An application of braid group theory to the finite time dead-core rate|
|期刊/報告no：:||Journal of Evolution Equations, Volume 10, Issue 4, Page(s) 835-855.|
|摘要:||We consider the dead-core problem for the semilinear heat equation with strong absorption and with positive boundary values in a ball. We investigate the dead-core rate, i.e. the rate at which the solution reaches its first zero. We first show, as in the one-dimensional case, that the dead-core rate is always faster than the self-similar rate. By using some special solutions and the braid group theory, we then derive the exact dead-core rates for a large class of initial data.|
|Appears in Collections:||應用數學系所|
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