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Yuyi Zhang

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 7 months
  • 69 profile views
  • Last seen yesterday

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Top posts (41) All Questions Answers | Votes Newest

5 A map is injective if it is nonzero at the generic point? Apr 15
4 If $\alpha,\beta\in C$ are algebraic over $Q$, show that $\alpha+\beta$ is a root of a quadratic polynomial in $Q[x]$ (with conditions). Oct 15 '18
3 Why Hessian is a (0,2) symmetry tensor? Oct 10 '18
2 Example of not smooth morphisim Mar 29
2 How to understand fibres of morphisms of schemes. Mar 31
2 Compute Cech cohomology of a subscheme defined by a homogeneous equations in $P^2_k$ Mar 8
1 Is this an exact sequence split? Mar 12
1 How to understand a point of a scheme? Nov 19 '18
1 Definition of degree of invertible sheaf? May 10
1 Measure of the set of points with differential zero Apr 20
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