Mathematics
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Winther
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I'm currently an associate professor at the Institute for Theoretical Astrophysics at University of Oslo working on cosmology and in particular large scale structure formulation. My main research interests these days is tests of gravity on cosmological scales and numerical (N-body) simulations of structure formation in gravitational theories that go beyond General Relativity. I got my PhD in at the University of Oslo in 2013.

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All Questions Answers
Score Newest
answer
51
Proof (claimed) for Riemann hypothesis on ArXiv
Aug 22, 2016
answer
33
Integration and differentiation of Fourier series
May 3, 2016
answer
31
The expected outcome of a random game of chess?
Jun 25, 2014
answer
25
An integral identity from Ramanujan's notebooks
Sep 2, 2015
answer
18
$f(f(f(x))) = x$. Prove or disprove that f is the identity function
Apr 30, 2017
answer
15
An integral identity from Ramanujan's notebooks
Sep 2, 2015
answer
15
The limit of $(n!)^{1/n}/n$ as $n\to\infty$
Sep 17, 2014
answer
14
Prove $\alpha \in\mathbb R$ is irrational, when $\cos(\alpha \pi) = \frac{1}{3}$
Sep 1, 2014
answer
14
How can I prove that $\int_{0}^{\infty }\frac{\log(1+x)}{x(1+x)}dx=\sum_{n=1}^{\infty }\frac{1}{n^2}$
Jan 5, 2015
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14
Proving that $\int_0^1 f(x)e^{nx}\,{\rm d}x = 0$ for all $n\in\mathbb{N}_0$ implies $f(x) = 0$
Jan 13, 2015
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9
Closed as off-topic after asking and answering own question
5
MathJax not rendering in comments and post preview
5
Requests for Reopen & Undeletion Votes, etc. (volume 01/2015 - 07/2018 )
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Problem with new MNRAS style files / newtx on arXiv
8
understanding a mathematica equation
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Creating n-dimensional mathematical vector classes through inheritance
5
Help me understand Gauss law
5
Error accumulation in NDSolve?

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