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This paper investigates the blow-up properties of positive solutions to the following system of evolution p-Laplace equations with nonlocal sources and inner absorptionswith homogeneous Dirichlet boundary conditions in a smooth bounded domain Ω R N (N ≥ 1), where p, q > 2, m, n, r, s ≥ 1, a, b > 0. Under appropriate hypotheses, the authors discuss the global existence and blow-up of positive weak solutions by using a comparison principle.
This paper deals with the following doubly degenerate parabolic systemwith null Dirichlet boundary conditions in a smooth bounded domain R N , where m, n 1, p, q 2, r 1 , r 2 , s 1 , s 2 1, ,ˇ< 0. Under appropriate hypotheses, we prove that the solution either exists globally or blows up in finite time.
This paper deals with the following nonlocal doubly degenerate parabolic system 2 and a, b > 0 are positive constants. We first get the non-existence result for a related elliptic systems of non-increasing positive solutions. Secondly by using this non-existence result, blow-up estimates for above non-Newton polytropic filtration systems with the homogeneous Dirichlet boundary value conditions are obtained. Then under appropriate hypotheses, we establish local theory of the solutions and prove that the solution either exists globally or blows up in finite time. In the special case, β 1 = n(q − 1) − β 2 , α 2 = m(p − 1) − α 1 , we also give a criterion for the solution to exist globally or blow up in finite time, which depends on a, b and ζ(x), ϑ(x) as defined in the main results.
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