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Blow-up properties of solutions to a class of p-Kirchhoff evolution equations
Electronic Research Archive 2022, 30(7): 2663-2680
Published: 15 July 2022
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This paper is devoted to an initial-boundary value problem for a class of p-Kirchhoff type parabolic equations. Firstly, we consider this problem with a general nonlocal coefficient M(upp) and a general nonlinearity k(t)f(u). A new finite time blow-up criterion is established, also, the upper and lower bounds for the blow-up time are derived. Secondly, we deal with the case that M(upp)=a+bupp, k(t)1 and f(u)=|u|q1u, which was considered by Li and Han [Math. Model. Anal. 2019; 24: 195-217] only for q>2p1. The threshold results for the existence of global and finite time blow-up solutions to this problem are obtained for the case 1<q2p1, which, together with the results given by Li and Han, shows that q=2p1 is critical for the existence of finite time blow-up solutions to this problem. These results partially generalize and extend some recent ones in previous literature.

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