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Questions
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When can we determine an $f$-vector or rank-generating function from its unordered list of coefficients?

nov 15 at 20:53 Patricia Hersh 2,685●1●9●21

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Continuous notions with compelling discrete analogues

aug 24 at 13:33 Patricia Hersh 2,685●1●9●21

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How to “see” that double suspension of homology 3-sphere is homeomorphic to a sphere?

jun 14 at 1:04 Sergey Melikhov 3,692●12●19

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Can the Alexander horned sphere arise as a cell boundary in a finite CW-sphere?

jun 4 at 12:58 Sergey Melikhov 3,692●12●19