论文标题

一个空间尺寸中完全非线性退化抛物线方程的能量公式

An energy formula for fully nonlinear degenerate parabolic equations in one spatial dimension

论文作者

Lappicy, Phillipo, Beatriz, Ester

论文摘要

能量(或Lyapunov)函数用于证明平衡的稳定性,或指示动态系统的梯度样结构。 Matano为准线性非降级抛物线方程构建了Lyapunov函数。我们修改了Matano的方法,以构建用于完全非线性退化抛物线方程的能量公式。我们提供了几个公式的例子,尤其是多孔培养基方程的新能量候选者。

Energy (or Lyapunov) functions are used to prove stability of equilibria, or to indicate a gradient-like structure of a dynamical system. Matano constructed a Lyapunov function for quasilinear non-degenerate parabolic equations. We modify Matano's method to construct an energy formula for fully nonlinear degenerate parabolic equations. We provide several examples of formulae, and in particular, a new energy candidate for the porous medium equation.

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