arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.14061math.OCmath-phmath.MP
收藏

约束非光滑变分问题

Constrained Nonsmooth Problems of the Calculus of Variations

M. V. Dolgopolik

摘要:

本文分析了具有边界附加约束和等周约束的非光滑多维变分问题的最优性条件。为了得到最优性条件,我们研究了非光滑函数可微性的广义概念,称为余可微性和拟可微性。在一些自然且易于验证的假设下,证明了定义在索伯列夫空间上的非光滑积分泛函是连续余可微的,并计算了它的余微分和拟微分.然后,我们应用巴拿赫空间中非光滑优化问题的一般最优性条件,得到变分法非光滑优化问题的最优性条件。通过一系列简单的例子,我们证明了我们的最优性条件有时比现有的各种次微分,在这个意义上,我们的最优性条件可以检测到一个给定的点的非最优性,当次微分为基础的最优性条件未能取消这个点作为非最优。

英文摘要:

The paper is devoted to an analysis of optimality conditions for nonsmooth multidimensional problems of the calculus of variations with various types of constraints, such as additional constraints at the boundary and isoperimetric constraints. To derive optimality conditions, we study generalised concepts of differentiability of nonsmooth functions called codifferentiability and quasidifferentiability. Under some natural and easily verifiable assumptions we prove that a nonsmooth integral functional defined on the Sobolev space is continuously codifferentiable and compute its codifferential and quasidifferential. Then we apply general optimality conditions for nonsmooth optimisation problems in Banach spaces to obtain optimality conditions for nonsmooth problems of the calculus of variations. Through a series of simple examples we demonstrate that our optimality conditions are sometimes better than existing ones in terms of various subdifferentials, in the sense that our optimality conditions can detect the non-optimality of a given point, when subdifferential-based optimality conditions fail to disqualify this point as non-optimal.

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。

↑