Fourier Algebras On Topological Foundation *-Semigroups
  We introduce the notion of the Fourier and Fouier-Stieltjes algebra of a topological *-semigroup and show that these are commutative Banach algebras. For a class of foundation semigroups, we show that these are preduals of von Neumann algebras. 
Massoud Amini, Alireza Medghalchi