Some notes and proofs

Date Title
2025-01-31 Brief introduction to point set topology (in Spanish), Math Cub YT
2024-11-01 Induced cohomology functor in an abelian category
2024-10-10 Homotopy of cochain complexes is an equivalence relation on \(\text{Hom}_{\mathcal{C}(\mathcal{A})} (A^\bullet, B^\bullet)\)
2024-09-30 The category \(\mathcal{C}(\mathcal{A})\) of cochain complexes over an abelian category \(\mathcal{A}\) is abelian (in Spanish)
2024-09-25 Composition of morphisms in a localized category \(\mathcal{C}_{S}\) is well defined