领先 发表于 2025-4-1 02:00:24

Topological Methods necessary in order that the subject develop rapidly. In any case, already in the twenties and thirties, people like Morse, Leray, Schauder, and others, were applying topological methods to differential equations. It is our purpose here to explain the relevance of some of these techniques to nonlinear differential equations.
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查看完整版本: Titlebook: Shock Waves and Reaction—Diffusion Equations; Joel Smoller Textbook 19831st edition Springer-Verlag New York Inc. 1983 Partielle Different