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born

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551 reputation
38
bio website wallenborn.net
location Bonn, Germany
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visits member for 1 year, 2 months
seen 43 mins ago
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551 reputation
 bio website wallenborn.net visits member for 1 year, 2 months
38 badges
 location Bonn, Germany seen 43 mins ago
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6 Accepts

suggestions reviews revisions comments badges posts accepts all
Feb
22
 accepted Serre's proof that zeta function is meromorphic
Feb
21
 accepted Set of locations where the Hilbert symbol is not equal to $1$
Dec
4
 accepted $p$-adic unit for $p\neq 2$ is a square in $\mathbb{Z}_p$ if and only if its first digit is quadratic residue modulo $p$.
Aug
31
 accepted equivalence of two definitions of norm equivalence: “$|\cdot|_1=|\cdot|_2^\alpha$” vs. “being a Cauchy sequence is the same for both norms”
Jul
11
 accepted $\alpha x^2+\beta y^2=\gamma$ solvable over $\mathbb Q$ iff $ax^2+by^2=z^2$ solvable over $\mathbb Z$ with coprime $x,y,z$?
Jun
25
 accepted Two elements $a$ and $b$ of a quadratic space generate a nondegenerate two dimensional subspace if and only if $(a\cdot a)(b\cdot b)\neq(a\cdot b)^2$
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