e to the A, in a New Way

1999/03/03 by Paul Federbush, Federbush, Paul
Computer Science · Mathematics · Physics and Astronomy · #FOS: Mathematics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Mathematical Physics (math-ph) #Mathematical functions and polynomials #Mathematics and Applications #Matrix Theory and Algorithms #Representation Theory (math.RT) #hep-ph #hep-th #math-ph #math.MP #math.RT

paper · pdf · doi:10.48550/arxiv.math-ph/9903006

5 pages, added some details

openalex publication_date 1999/03/03 · arxiv created 1999/04/20 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Apparently new expressions are given for the exponential of a hermitian matrix,A, in the 2x2,3x3,and 4x4 cases. Replacing A by iA these are explicit formulas for the Fourier transform of exp(iA).

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