Open Access Research Article

A computational investigation of an integro-differential inequality with periodic potential

BM Brown1 and VG Kirby2*

  • * Corresponding author: VG Kirby

Author Affiliations

1 Department of Computer Science, Cardiff University, P.O. Box 916, Cardiff CF3 3XF, UK

2 School of Mathematics, Kingston University, Penrhyn Road, Kingston Upon Thames, Surrey KT1 2EE, UK

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Journal of Inequalities and Applications 2000, 2000:605989 doi:10.1155/S1025583400000163

Published:

Abstract

This paper is concerned with a certain integral inequality whose associated differential expression contains a periodic potential. In these problems the spectrum consists of bands which may have eigenvalues in the gaps. We use numerical methods to estimate the location of these bands and position of the eigenvalues and use this information to produce new examples of the HELP inequality.

Keywords:
Integral inequality; Ordinary differential equations; Titchmarsh–Weyl m-function; Periodic potential; Numerical methods