Theory . He also hosts English translation of Markov's paper on insolubility of homeomorphy . Tu, Oct 6 Simplicial Complexes. [EH09] Section III.1 On Wikipedia: Simplex , Simplicial complex , Abstract simplicial complex , Barycentric subdivision . Th, Oct 8 Nerves. [EH09] Sections III.2 , III.3 , III.4 . [H01] Section