2born (2born) wrote,
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Сказка о трех диагонализациях

A tale of three diagonalizations: https://arxiv.org/abs/2009.03990
Howard E. Haber
In addition to the diagonalization of a normal matrix by a unitary similarity transformation, there are two other types of diagonalization procedures that sometimes arise in quantum theory applications---the singular value decomposition and the Autonne-Takagi factorization. In these pedagogical notes, we carry out each of these diagonalization procedures for the most general 2×2 matrices for which the corresponding diagonalization is possible and provide explicit analytical results in each of the three cases.
Comments: 27 pages
Tags: КЭД, Мегаучебник или Что я читал и похвалил, разгребая arXiv'ы
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