English

An eigenvalue result for Neumann BVPs with functional terms

Classical Analysis and ODEs 2026-04-15 v1 Numerical Analysis Numerical Analysis

Abstract

We study the existence and localization of eigenvalue-eigenfunction pairs for parameter-dependent Neumann BVPs with a functional term. By reformulating the problems as a Hammerstein integral equation, we apply an existence and localization result and propose a convergent fixed-point iteration scheme. Finally, two pseudocodes and a MATLAB implementation are provided to numerically approximate the eigenvalues and validate the theoretical localization bounds. We also illustrate an approximation of the eigenfunctions for a fixed norm.

Keywords

Cite

@article{arxiv.2604.12415,
  title  = {An eigenvalue result for Neumann BVPs with functional terms},
  author = {Giuseppe Antonio Veltri},
  journal= {arXiv preprint arXiv:2604.12415},
  year   = {2026}
}

Comments

19 pages, 5 figures

R2 v1 2026-07-01T12:08:13.814Z