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(geometric/intuitive) interpretation of ext

jan 4 at 18:03 Johannes 167●4

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Smith normalform of a Matrix with -1 outside the diagonal

mar 5 at 17:58 i707107 829●3●8

 
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What is the geometric point of view of an algebraic line bundle compared to a analytic line bundle?

apr 4 12 at 10:18 Allen Knutson 12.4k●1●23●64

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Invariant Polynomes under group action - given the invariants looking for the group. algorithmic solution?

aug 16 11 at 8:52 Johannes 167●4

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Function or bounds for the number of solutions of `$\sum\limits_{i=0}^k \frac{1}{x_k} = 1$`

mar 15 11 at 14:51 Johannes 167●4