English

Two-parametric $\delta'$-interactions: approximation by Schr\"odinger operators with localized rank-two perturbations

Spectral Theory 2018-07-03 v2 Mathematical Physics math.MP

Abstract

We construct a norm resolvent approximation to the family of point interactions f(+0)=αf(0)+βf(0)f(+0)=\alpha f(-0)+\beta f'(-0), f(+0)=α1f(0)f'(+0)=\alpha^{-1}f'(-0) by Schr\"odinger operators with localized rank-two perturbations coupled with short range potentials. In particular, a new approximation to the δ\delta'-interactions is obtained.

Cite

@article{arxiv.1801.09469,
  title  = {Two-parametric $\delta'$-interactions: approximation by Schr\"odinger operators with localized rank-two perturbations},
  author = {Yuriy Golovaty},
  journal= {arXiv preprint arXiv:1801.09469},
  year   = {2018}
}

Comments

Submitted to JPA. 13 pages, 1 figure

R2 v1 2026-06-23T00:00:56.799Z