e to the A, in a New Way
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).
 Publication:

arXiv eprints
 Pub Date:
 March 1999
 arXiv:
 arXiv:mathph/9903006
 Bibcode:
 1999math.ph...3006F
 Keywords:

 Mathematical Physics;
 Representation Theory
 EPrint:
 5 pages, added some details