English

Best constant for Ulam stability of first-order h-difference equations with periodic coefficient

Classical Analysis and ODEs 2020-04-08 v1

Abstract

We establish the best (minimum) constant for Ulam stability of first-order linear hh-difference equations with a periodic coefficient. First, we show Ulam stability and find the Ulam stability constant for a first-order linear equation with a period-two coefficient, and give several examples. In the last section we prove Ulam stability for a periodic coefficient function of arbitrary finite period. Results on the associated first-order perturbed linear equation with periodic coefficient are also included.

Keywords

Cite

@article{arxiv.2004.03465,
  title  = {Best constant for Ulam stability of first-order h-difference equations with periodic coefficient},
  author = {Douglas R. Anderson and Masakazu Onitsuka and John Michael Rassias},
  journal= {arXiv preprint arXiv:2004.03465},
  year   = {2020}
}

Comments

17 pages

R2 v1 2026-06-23T14:43:00.654Z