Top Network Posts
- 51Sexy vacuity ....
- 31Why are free groups residually finite?
- 15If $B\subseteq A$ are free & finite rank $R$-algebras, is $R\to A \otimes_B R$ injective?
- 10Is the following invariant of rooted trees a complete invariant?
- 8When can one extend a flat family from a subscheme to the whole scheme?
- 8Why are inverse images more important than images in mathematics?
- 7Is 2 a zerodivisor in the ring parametrizing rank-n algebras?
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