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Ruben's user avatar
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Ruben
  • Member for 3 years, 9 months
  • Last seen more than 3 years ago
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  • Mathematics
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Top network posts
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17
How to show $0 < \frac{x}{x+y} < 1$ given $0 < x$ and $0 < y$
7
Proof that $\sqrt{2}$ is irrational is not convincing. Please help.
6
Does the Grothendieck group of finitely generated modules form a commutative ring where the multiplication structure is induced from tensor product?
5
Is the inverse image exact on locally free sheaves?
5
What is the probability that the i-th urn is empty?
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