Keywords: ANR, finite polyhedron, homotopy equivalence, ▫$\varepsilon$▫-map, cellular map, almost-smooth manifold, ▫$|E_8|$▫-manifold, Kirby-Siebenmann class, Galewski-Stern obstruction, non-triangulable manifold, Alexandroff-Borsuk Manifold ProblemFull text (file, 563,72 KB)
Keywords: cohomology 3-manifold, cohomological dimension, Borel-Moore homology, Čech cohomology, Milnor-Harlap exact sequence, lens space, ANRFull text (file, 264,52 KB)
Keywords: planar acyclic space, cellular compactum, absolute neighborhood retract, nerve, fine covering, embedding into Euclidean space, Čech homologyFull text (file, 624,16 KB)