Dual algebras.
Dual spaces and translation invariant means on group von Neumann algebras
Let G be a locally compact group. Its dual space, G*, is the set of all extreme points of the set of normalized continuous positive definite functions of G. In the early 1970s, Granirer and Rudin proved independently that if G is amenable as discrete, then G is discrete if and only if all the translation invariant means on are topologically invariant. In this paper, we define and study G*-translation operators on VN(G) via G* and investigate the problem of the existence of G*-translation invariant...
Dualité, et transformation de Fourier -adiques
Dualité et transformation de Fourier p-adiques
Duals of Orbit Spaces in Groups With Relatively Compact Inner Automorphism Groups Are Hypergroups.
Duals of subhypergroups and quotients of commutative hypergroups.