Alternative proof of the a priori \(\tan \theta\) theorem

DOI10.1134/S0040577916010074zbMath1338.81203arXiv1510.02316MaRDI QIDQ290081

Alexander K. Motovilov

Publication date: 1 June 2016

Published in: Theoretical and Mathematical Physics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1510.02316

zbMATH Keywords

\(\tan \theta\) theoremoperator Riccati equationperturbation of spectral subspace

Mathematics Subject Classification ID

Selfadjoint operator theory in quantum theory, including spectral analysis (81Q10) Perturbation theories for operators and differential equations in quantum theory (81Q15)

Related Items (1)

Rayleigh--Ritz Majorization Error Bounds of Mixed Type

Cites Work

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