Mathematics

Why is a field extension $L:K$ normal if and only if $text{Aut}(L:K)$ acts transitively on the set of homomorphisms $Lto overline{K}$?

First post and replies  | Last post by Guest, 1 year ago

Proving set is Borel in $S^{n-1}$

First post and replies  | Last post by Guest, 1 year ago

Cox's exercise 5.1 on (eventually) proving ring of integers is a dedekind domain

First post and replies  | Last post by Guest, 1 year ago

$n$ heads in a row $2^n$ tosses, Borell Cantelli

First post and replies  | Last post by Guest, 1 year ago

Convergence in Probability of Stochastic Integral

First post and replies  | Last post by Guest, 1 year ago

Do all unitary matrices have fast multiplication algorithms?

First post and replies  | Last post by Guest, 1 year ago

Evaluate the expression step by step [closed]

First post and replies  | Last post by Guest, 1 year ago

whether $L^p$ harmonic function is constant for $0<p<1$?

First post and replies  | Last post by Guest, 1 year ago

Splitting field with Galois group $A_7$

First post and replies  | Last post by Guest, 1 year ago

Formula for Hessian of hypersurface in coordinates

First post and replies  | Last post by Guest, 1 year ago