数学研究及应用2024,Vol.44Issue(6) :795-806.DOI:10.3770/j.issn:2095-2651.2024.06.008

Existence of Solution to a Class of Elliptic Equations with Lower Order Terms and Variable Exponents

Zhongqing LI
数学研究及应用2024,Vol.44Issue(6) :795-806.DOI:10.3770/j.issn:2095-2651.2024.06.008

Existence of Solution to a Class of Elliptic Equations with Lower Order Terms and Variable Exponents

Zhongqing LI1
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作者信息

  • 1. School of Mathematics and Statistics,Guizhou University of Finance and Economics,Guizhou 550025,P.R.China
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Abstract

We study a class of nonlinear elliptic equations with nonstandard growth condition.The main feature is that two lower order terms,a non-coercive divergence term divΦ(x,u)and a gradient term H(x,u,▽u)with no growth restriction on u,appear simultaneously in the variable exponents setting.These characteristics prevent us from directly obtaining the existence of solutions by employing the classical theory on existence results.By choosing some appropriate test functions in the perturbed problem,some a priori estimates are obtained under the variable exponent framework.Based on these estimates,we prove the almost everywhere convergence of the gradient sequence{▽u∈}∈,which helps to pass to the limit to find a weak solution.

Key words

elliptic equations/nonstandard growth condition/lower order terms/weak solutions

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出版年

2024
数学研究及应用
大连理工大学

数学研究及应用

CSCD
影响因子:0.094
ISSN:2095-2651
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