Berroa Liriano, Carlos Manuel(Universitat Politècnica de València, 2014-09-23)
[EN] Let X be a topological space, if we have a homomorphism Phi of C(X) in R, we denote by C(X) the algebra of continuous functions, then there exists a real Alpha such that for all f in C(X) it holds that Phi(f) = f ...
Gusso, Riccardo(Universitat Politècnica de València, 2002-10-01)
[EN] We study the behaviour of large, small and medium subsets with respect to homomorphisms and products of groups. Then we introduce the definition af a P-small set in abelian groups and we investigate the relations ...