Event
Max Chemtov (º«¹úÂãÎè)
Wednesday, February 1, 2023 15:00to16:00
Burnside Hall
Room 920, 805 rue Sherbrooke Ouest, Montreal, QC, H3A 0B9, CA
Title: Nonpositive Towers in Contractible 3-Manifold Spines
Abstract: The nonpositive immersions property (NPI) and nonpositive towers property (NPT) are motivated via Whitehead’s asphericity conjecture, and a class of 2-complexes failing to have NPI is shown to still have NPT.
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