Kyriazis, Eleftherios2012-09-182012-09-182012-09-18http://hdl.handle.net/10539/11953In this dissertation we study the notion of symmetry on groups, topological spaces, et cetera. The relationship between such structures with symmetries and Ramsey Theory is re ected by certain natural functions. We give a general picture of asymptotic behaviour of these functions.enSymmetry.Ramsey theory.Thesis