Lozada-Cruz, German Jesus [UNESP]2015-04-272015-04-272012Revista Colombiana de Matematicas, v. 46, n. 2, p. 229-233, 2012.0034-7426http://hdl.handle.net/11449/122807In this short note we show that the results obtained by Walter in [4] remain valid if we change the metric by another metric. Furthermore, if we use the norm jjT; given in [3], Theorem B in[4] remains valid.Contraction, contraction principle, xed point. Resumen.En esta breve nota se muestra que los resultados obtenidos por Walter en [4] siguen siendo validos si se cambia la metrica por otra. Ademas, si se utiliza la norma jjT; usada en [3], el Teorema B en [4] sigue siendo valido.229-233engContractioncontraction principlexed pointArtigoAcesso aberto9125376680065204