e to the A, in a New Way
Mathematical Physics
2007-05-23 v2 High Energy Physics - Phenomenology
High Energy Physics - Theory
math.MP
Representation Theory
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).
Cite
@article{arxiv.math-ph/9903006,
title = {e to the A, in a New Way},
author = {Paul Federbush},
journal= {arXiv preprint arXiv:math-ph/9903006},
year = {2007}
}
Comments
5 pages, added some details