English

Hyers--Ulam stability for quantum equations

Classical Analysis and ODEs 2020-05-12 v1

Abstract

We introduce and study the Hyers--Ulam stability (HUS) of a Cayley quantum (qq-difference) equation of first order, where the constant coefficient is allowed to range over the complex numbers. In particular, if this coefficient is non-zero, then the quantum equation has Hyers--Ulam stability for certain values of the Cayley parameter, and we establish the best (minimal) HUS constant in terms of the coefficient only, independent of qq and the Cayley parameter. If the Cayley parameter equals one half, then there is no Hyers--Ulam stability for any coefficient value in the complex plane.

Keywords

Cite

@article{arxiv.2005.05122,
  title  = {Hyers--Ulam stability for quantum equations},
  author = {Douglas R. Anderson and Masakazu Onitsuka},
  journal= {arXiv preprint arXiv:2005.05122},
  year   = {2020}
}

Comments

13 pages, preprint

R2 v1 2026-06-23T15:27:28.329Z