2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56545Expressions are given for the exponential of a hermitian matrix, A. Replacing A by iA these are explicit formulas for the Fourier transform of exp(iA). They extend to any size matrix the previous results for the 2 X 2, 3 X 3, and 4 X 4 cases. The expressions are elegant and should prove useful.5 pages, Added detailed proofMathematical PhysicsHigh Energy Physics - Theorytext