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SomeEE
  • Member for 10 years, 3 months
  • Last seen more than 9 years ago
  • United States
12 votes
Accepted

Hartshorne II Prop. 6.9

11 votes
Accepted

When is the global section functor exact?

5 votes
Accepted

Use of Routh-Hurwitz if you have the eigenvalues?

3 votes
Accepted

What are the applications of algebraic geometry to electronics?

2 votes

Old prelim exam problem: Suppose that $f$ is holomorphic on the unit disk. If $\exists$ $r \in (0,1)$ such that $|f(1/n)|\leq r^n$. Then $f=c$

2 votes

Why a closed subscheme give rise to a closed immersion

2 votes
Accepted

Proof help. Core-compactness, Hausdorff, Locally Compact

2 votes
Accepted

$\mu$-regular lines.

2 votes
Accepted

For each $\gamma$, the derived set of $A_\gamma$ is closed. Show that the derived set of $\cup A_\gamma$ is closed.

1 vote
Accepted

having so much trouble trying to see why the following is true

1 vote
Accepted

Morphism between covering spaces.

1 vote
Accepted

Proving this family is a basis for some topology.

1 vote

vector field on $\mathbb{R} P^2$

1 vote
Accepted

$I(X\times Y)=(f_{1},\dots,f_{r},g_{1},\dots,g_{s})$

1 vote

Interesting inequality question

1 vote

Linearization of a group action: why the map is equivariant?

1 vote

Establish that U1 and U2 are independent?

1 vote
Accepted

Question about a remark in Serre's Local Fields

1 vote

A question about the restriction of quotient maps to subsets of domain.

1 vote

What is meant with unique smallest/largest topology?

1 vote

Old prelim exam problem for $f(z)$ is analytical function on an open neighborhood $G$ of the unit circle, with $|f(z)|=1$ when $|z|=1$

0 votes

Proving a basic property about derived sets and unions

0 votes
Accepted

Finding all solutions to an initial value problem

0 votes
Accepted

Tensor of quotients question

0 votes

Prove for $ar^k = r^{-k}a$ all integers $k$