Motivated by the notion of a set of uniqueness in a locally compact group G, we introduce and study ideals of uniqueness in the Fourier algebra A(G) of G, and their accompanying operator version, masa-bimodules of uniqueness. We establish a transference between the two notions, and use this result to show that the property of being an ideal of uniqueness is preserved under natural operations.
I. G. Todorov
Queen's University Belfast
Chalmers, Mathematical Sciences, Analysis and Probability Theory