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# Questions

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### Geometric interpretation of characteristic polynomial

jul 29 10 at 2:48 Per Vognsen 1,041515

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15
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### When is a symplectic manifold equivalent to a cotangent bundle?

aug 20 10 at 22:16 Will Merry 343148

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### Bijective proof of weak form of Stirling’s approximation

aug 2 10 at 8:45 Igor Pak 8,20621757

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### Conceptual explanation of Strassen’s trick for matrix multiplication

sep 24 at 5:37 Denis Serre 18.7k13193

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### Cubical cohomology and de Rham cohomology

jul 28 10 at 9:06 Peter Arndt 6,8881842

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