Rev.colomb.mat. - vol.44 issue1

Table of contents
Rev.colomb.mat. vol.44 no.1 Bogotá Jan./June 2010

Originals aeticles

	· Commensurator Subgroups of Surface Groups OCAMPO URIBE, OSCAR EDUARDO · abstract in English \| Spanish · text in English · pdf in English

	· Rigidity of the Stable Norm on Tori OSUNA, OSVALDO · abstract in English \| Spanish · text in English · pdf in English

	· A Variational Characterization of the Fucik Spectrum and Applications CASTRO, ALFONSO; CHANG, CHEN · abstract in English \| Spanish · text in English · pdf in English

	· Maximal Virtual Schottky Groups: Explicit Constructions HIDALGO, RUBÉN A. · abstract in English \| Spanish · text in English · pdf in English

	· An Alternative Proof of Hill's Criterion of Freeness for Abelian Groups MACÍAS-DÍAZ, JORGE EDUARDO · abstract in English \| Spanish · text in English · pdf in English

	· Theorems for Double-Index One-Parameter Bessel Functions CASTILLO, GREILYN; GALUÉ, LEDA · abstract in English \| Spanish · text in Spanish · pdf in Spanish