Locating Conical Degeneracies in the Spectra of Parametric Self-adjoint Matrices
DOI10.1137/20M134174XzbMath1467.65028arXiv2001.02753MaRDI QIDQ5857843
Gregory Berkolaiko, Advait Parulekar
Publication date: 8 April 2021
Published in: SIAM Journal on Matrix Analysis and Applications (Search for Journal in Brave)
Full work available at URL: https://arxiv.org/abs/2001.02753
dispersion relationconical pointseigenvalue multiplicityDirac pointsparametric families of self-adjoint matrices
Numerical computation of eigenvalues and eigenvectors of matrices (65F15) Eigenvalues, singular values, and eigenvectors (15A18) Dispersion theory, dispersion relations arising in quantum theory (81U30)
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