%0 Book Section %T Ultrametric spaces, valued and semivalued groups arising from the theory of shape publisher UCM %D 2012 %U 978-84-695-4421-1 %@ https://hdl.handle.net/20.500.14352/45360 %X In this paper we construct many generalizad ultrametrics in the sets of shape morphisms between topological spaes. We recognize a topology in these sets which is independen on the shape representation of the spaces. We construct valuations an semivaluations on groups of shape equivalences and on n-th shape groups. We also connect shape theory, for arbitrary topological spaces, with the algebraic theory of generalized ultrametric spaces developed by S. Priess-Crampe and P. Ribenboim among other authors. %~