Top network posts

• 91 Which manifolds are homeomorphic to simplicial complexes?
• 68 Why are the characters of the symmetric group integer-valued?
• 57 Why does one think to Steenrod squares and powers?
• 43 What's an example of an $\infty$-topos not equivalent to sheaves on a Grothendieck site?
• 41 What is the "intuition" behind "brave new algebra"?
• 36 A possible generalization of the homotopy groups.
• 36 Are there pairs of highly connected finite CW-complexes with the same homotopy groups?
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