A useful expansion of the exponential of the sum of two non-commuting matrices, one of which is diagonal

DOI10.1088/0305-4470/36/3/314zbMath1049.15017OpenAlexW1990471661MaRDI QIDQ4465829

Christoph Koch, John C. H. Spence

Publication date: 9 June 2004

Published in: Journal of Physics A: Mathematical and General (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1088/0305-4470/36/3/314

zbMATH Keywords

convergencemultiple scatteringTaylor expansionmatrix inversionmatrix exponentialsystem of linear differential equationshigh energy electrons in a cyrstal

Mathematics Subject Classification ID

Linear ordinary differential equations and systems (34A30) (S)-matrix theory, etc. in quantum theory (81U20) Matrices over function rings in one or more variables (15A54)

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