RICCI , F

If (G, K) is a Gelfand pair, with G a Lie group of polynomial growth and K a compact subgroup of G, the Gelfand spectrum & sigma; of the bi-K-invariant algebra L1(K\G/K) admits natural embeddings into Rt spaces as a closed subset.For any such embedding, define S(& sigma;) as the space of restrictions to & sigma; of Schwartz functions on Rt. We...