On Gelfand Pairs Associated with Solvable Lie Groups
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In this article, the authors consider the case where G is a connected, simply connected solvable Lie group and K C Aut(G) is a compact, connected group and determine a moduli space for the associated K-spherical functions.Abstract:
Let G be a locally compact group, and let K be a compact subgroup of Aut(G) , the group of automorphisms of G. There is a natural action of K on the convolution algebra L (G), and we denote by LK(G) the subalgebra of those elements in L (G) that are invariant under this action. The pair (K, G) is called a Gelfand pair if LI(G) is commutative. In this paper we consider the case where G is a connected, simply connected solvable Lie group and K C Aut(G) is a compact, connected group. We characterize such Gelfand pairs (K, G), and determine a moduli space for the associated K-spherical functions.read more
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Theodor Bröcker,Tammo tom Dieck +1 more
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