Julian Rosen's user avatar
Julian Rosen's user avatar
Julian Rosen's user avatar
Julian Rosen
  • Member for 13 years, 11 months
  • Last seen more than a month ago
3 votes
Accepted

Existence of matrices with some invertibility properties

5 votes
Accepted

Is a proper quotient of $\mathbb{F}_{q^n}[x]$ considered as an $\mathbb{F}_q$-algebra always a quotient of $\mathbb{F}_q[x]$?

13 votes
Accepted

Must a continuous $\varphi:\mathbb R^n\to\mathbb R^n$ with $\mathbb Q^n \subseteq \varphi[\mathbb Q^n]$ be surjective?

2 votes
Accepted

Interpolation of scheme-theoretic endomorphisms of closed fibers

3 votes

An averaging procedure on finite multisets of $2$-adic integers

8 votes

Weil cohomologies with given field of definition and coefficient field

1 vote
Accepted

non-archimedean valuations on graded rings

3 votes

Estimate for $\sum_{a=1}^{p-1}\sum_{b=1}^{p-1}\frac{b}{a(ab)_p}$, where $p$ is a large prime

6 votes

Generalize $H^1_{dR}(X)=\mathrm{Hom} (\pi_1(X),\mathbb R)$ to fundamental Groupoid

8 votes
Accepted

Lie Algebra of Automorphism Group of $\mathbb{P}_k^1$

4 votes

How to cook up an Artin motive from a positive-dimensional variety

2 votes
Accepted

$p$-adic realisation of Kummer motive and Frobenius matrix

39 votes
Accepted

Why these surprising proportionalities of integrals involving odd zeta values?

17 votes

The underlying space of a scheme remembers its affineness?

6 votes
Accepted

Lie algebra preserving ideal of functions

27 votes

Does there exist a full and faithful embedding of $\mathsf{Poset}$ in $\mathsf{Set}$?

1 vote
Accepted

On a special type of subring of $\mathbb C[x_0,...,x_{q-1}]$

10 votes
Accepted

“Algebraization" of $p$-adic fields

3 votes

$p$-adic sums of $p$ terms

5 votes
Accepted

Effective cycles of codimension 1 and field extensions

7 votes
Accepted

A Rng of rotations?

43 votes

What are reasons to believe that e is not a period?

23 votes
Accepted

Similar matrices over $\mathbb Z_p$

13 votes
Accepted

Motives associated to a Number Field

4 votes

$p$-adic periods

16 votes
Accepted

Is a topological fiber-bundle, whose total space admits a retraction onto a fiber, trivial?

1 vote
Accepted

Profinite extension of a Lie group

15 votes

Measuring a presheaf's failure to be a sheaf?

5 votes
Accepted

Which elements of $1+(x_1,x_2)\subset\mathbb{Z}_p[[x_1,x_2]]^\times$ are in $\langle 1+x_1,1+x_2\rangle$?

2 votes

Which elements of $1+(x_1,x_2)\subset\mathbb{Z}_p[[x_1,x_2]]^\times$ are in $\langle 1+x_1,1+x_2\rangle$?