Introduction to geometric group theory Olga Salazar-Díaz, Gabriel Vergara-Ríos 15-30 PDF (Español (España))
Isometric immersions into Riemannian Manifolds Carlos Alberto Marín Arango 31-54 PDF (Español (España))
Equivariant vector bundles on compacthomogeneous spaces: Retracted Article. The editorial board of Revista Integración has decided to retract the following article: González Díaz F.R., Fibrados vectoriales equivariantes en espacios homogéneos compactos, Rev. Integr. temas mat. 29 (2011), No. 1, 55-58, because it is mainly a translation of the introduction and Section 2 of the article of Rieffel M. A., A global view of equivariant vector bundles and Dirac operators on some compact homogeneous spaces. Contemp. Math., 449 (2008), 399-415. Bucaramanga, september 25, 2020. Fernando Ricardo González Díaz 55-58 PDF (Español (España))
Timelike and null equatorial geodesics in the Bonnor-Sackfield relativistic disk Guillermo A. González, Framsol López-Suspes 59-72 PDF (Español (España))
Proving activity: participating in the production of a theorem Óscar Molina Molina, Carmen Samper, Patricia Perry, Leonor Camargo 73-96 PDF (Español (España))