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一类含有多重非线性项的双重退化抛物型方程组正解存在性

Existence of Positive Solutions for A Class of Doubly Degenerate Parabolic System with Multi-Coupled Nonlinearities
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摘要 本文主要讨论了含有内部源和非线性边界流耦合的双重退化非线性抛物型方程组解的整体存在和爆破性质,在合理的假设下,通过比较原理得到该方程组的所有正解整体存在的充分必要条件。 This paper studys the global existence and blow-up of solutions of doubly degenerate parabolic system coupled with local source and nonlinear boundary flux.Under appropriate hypotheses,by a weak comparison principle,necessary and sufficient conditions on the global existence of all positive solutions are obtained.
出处 《中国海洋大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第6期125-129,共5页 Periodical of Ocean University of China
基金 国家自然科学基金项目(10371050) 高校基本科研业务费青年教师科研专项基金项目(201113008)资助
关键词 双重退化抛物型方程组 全局存在性 爆破 内部源 非线性边界流 doubly degenerate parabolic system global existence blow-up local source nonlinearboundary flux
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参考文献9

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