Abstract
This paper studies a fast diffusive p-Laplace equation with the nonlocal source |u|q−⨍Ω|u|qdx in a bounded domain, subject to homogeneous Neumann boundary value condition. A critical criterion is determined that the changing sign solutions blow up in finite time with q>1 and non-positive initial energy associated, and must be global for any initial energy if q⩽1. In particular, the conditions are obtained under which the changing sign solutions vanish in finite time.
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