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arXiv math/0612742math.APmath.DG
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黎曼流形上二阶偏微分方程的黏性解

Viscosity solutions to second order partial differential equations on Riemannian manifolds

Daniel Azagra, Juan Ferrera, Beatriz Sanz

摘要:

本文证明了有限维黎曼流形$M$上一类完全非线性二阶偏微分方程$F(x, u, du, d^{2}u)=0$黏性解的比较、唯一性和存在性结果.最佳结果(假设要求函数$F$是退化椭圆的,即在二阶导数变量中不增加,并且关于变量$x$一致连续)是在$M$具有非负截面曲率的假设下获得的,而,如果另外要求$F$以一致连续的方式依赖于$d^{2}u$,则在没有关于曲率的限制性假设的情况下建立比较结果。

英文摘要:

We prove comparison, uniqueness and existence results for viscosity solutions to a wide class of fully nonlinear second order partial differential equations $F(x, u, du, d^{2}u)=0$ defined on a finite-dimensional Riemannian manifold $M$. Finest results (with hypothesis that require the function $F$ to be degenerate elliptic, that is nonincreasing in the second order derivative variable, and uniformly continuous with respect to the variable $x$) are obtained under the assumption that $M$ has nonnegative sectional curvature, while, if one additionally requires $F$ to depend on $d^{2}u$ in a uniformly continuous manner, then comparison results are established with no restrictive assumptions on curvature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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