TY - JOUR T1 - A Blow-Up Result for a Class Doubly Nonlinear Parabolic Equations with Variable-Exponent Nonlinearities AU - Hu , Qingying AU - Li , Donghao AU - Zhang , Hongwei JO - Annals of Applied Mathematics VL - 2 SP - 145 EP - 151 PY - 2020 DA - 2020/08 SN - 35 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/aam/18073.html KW - doubly nonlinear parabolic equations, variable-exponent nonlinearities, blow-up. AB -
This paper deals with the following doubly nonlinear parabolic equations ($u$ + |$u$|$r(x)$−2$u$)$t$ − div(|∇$u$|$m(x)$−2∇$u$) = |$u$|$p(x)$−2$u$, where the exponents of nonlinearity $r(x)$, $m(x)$ and $p(x)$ are given functions. Under some appropriate assumptions on the exponents of nonlinearity, and with certain initial data, a blow-up result is established with positive initial energy.