English

On the index instability for some nonlocal elliptic problems

Analysis of PDEs 2014-05-05 v1

Abstract

The Fredholm index of unbounded operators defined on generalized solutions of nonlocal elliptic problems in plane bounded domains is investigated. It is known that nonlocal terms with smooth coefficients having zero of a certain order at the conjugation points do not affect the index of the unbounded operator. In this paper, we construct examples showing that the index may change under nonlocal perturbations with coefficients not vanishing at the points of conjugation of boundary-value conditions.

Keywords

Cite

@article{arxiv.1405.0367,
  title  = {On the index instability for some nonlocal elliptic problems},
  author = {Pavel Gurevich},
  journal= {arXiv preprint arXiv:1405.0367},
  year   = {2014}
}

Comments

12 pages, 3 figures

R2 v1 2026-06-22T04:04:36.218Z