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David Goldberg's user avatar
David Goldberg's user avatar
David Goldberg's user avatar
David Goldberg
  • Member for 10 years, 8 months
  • Last seen this week
3 votes

Find an example about the connectedness.

2 votes

Find a measurable set A$\subset(-1,1)$ such that $f(x)=m(A\cap(-1,x))$ has $f'(0)=1/2$

2 votes
Accepted

Forster's proof of the local behavior of holomorphic mappings

1 vote
Accepted

Does a pair of complex embeddings correspond to a single complex prime?

1 vote

How to calculate a conductor - Neukirch Proposition 8.5

1 vote

Question on Proposition 10.3 Neukirch - Splitting of prime ideals in $\mathbb{Q}(\zeta_n)$

1 vote
Accepted

Neukirch Corollary 11.7

1 vote

Prove that there is no holomorphic map $s: \mathbb{P}^n \to \mathbb{C}^{n+1} \setminus \{0\}$ with $p \circ s = \operatorname{id}$.

1 vote

$\mathcal{O}/(\mathcal{O}\cap I\mathcal{O}_P)\cong \mathcal{O}_P/I\mathcal{O}_p$ if $\mathcal{O}$ is a noetherian one dimensional domain.

1 vote
Accepted

Is $e^{it\Delta} g(x)$ continuous in $\mathcal{S}(\mathbb{R}^d)$?

1 vote
Accepted

Are these two results applied Mean Value Theorem appropriately?

1 vote

Determine all values of $z$ (if any) where $\,f (z)= \cos(|z|^2)$ is analytic?

0 votes

A characterisation of tame ramification

0 votes

Why is a general element in $G(L/K)$ a power of the Frobenius automorphism when restricted to $L \cap \tilde{K}$?

0 votes

Proof of the general reciprocity law (Algebraic Number Theory)