Translation representation for the solution of the non-Euclidean wave equation (1975)

by P D Lax, R S Phillips
Venue:CPAM 32 (1979), 617–667. 23 [NR] [P] [Pa] [R] [RS] [Ro1] P. Mohanty, S.K. Ray, R.P. Sarkar and A. Sitaram, Helgason Fourier Transform for Symmetric Spaces II, J. of Lie Theory 14 (2004