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On the effective secular equation

Quantum Physics 2024-12-17 v1 Mathematical Physics math.MP

Abstract

We show that the effective secular equation proposed several years ago is suitable for estimating the location of the exceptional points of eigenvalue equations. As an illustrative example we choose the well known Mathieu

Cite

@article{arxiv.2211.12335,
  title  = {On the effective secular equation},
  author = {Francisco M. Fernández},
  journal= {arXiv preprint arXiv:2211.12335},
  year   = {2024}
}
R2 v1 2026-06-28T06:35:46.858Z