Zonal spherical function
In mathematics, a zonal spherical function is a function on a locally compact group G with maximal compact subgroup K that arises as the matrix coefficient of a K-invariant vector in an irreducible representation of G.
In mathematics, a zonal spherical function is a function on a locally compact group G with maximal compact subgroup K that arises as the matrix coefficient of a K-invariant vector in an irreducible representation of G.