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Ludwig

Berlin, Germany

I'm interested in both pure and applied math.

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Top Questions
29 votes

Unconventional examples of mathematical modelling

soft-question ds.dynamical-systems mathematical-modeling asked Aug 15, 2019 at 5:33
mathoverflow.net

24 votes

Literary works authored by mathematicians

mathematics mathematicians biographical-details examples asked Feb 5, 2017 at 10:12
hsm.stackexchange.com

18 votes

A seemingly simple inequality

inequalities gm.general-mathematics conjectures asked Jan 15, 2017 at 9:05
mathoverflow.net

16 votes

The number of 0-1 normal matrices

co.combinatorics matrices matrix-theory matrix-equations asked May 4, 2019 at 16:58
mathoverflow.net

15 votes

$\sum\limits_i a_i^2\sum\limits_i b_i^2+\left(\sum\limits_ia_i b_i\right)^2\geq \sqrt{\sum\limits_i a_i^4\sum\limits_i b_i^4}+\sum\limits_ia_i^2b_i^2$

inequality conjectures asked Mar 20, 2016 at 22:31
math.stackexchange.com

15 votes

Behavior of $I(n) = \int_{-\pi}^{\pi}\int_{-\pi}^{\pi}e^{ i n (x+y)}\,\frac{2\sin^2(x)\sin^2(y)}{2k -\cos(x)-\cos( y)}\,\mathrm{d}x\,\mathrm{d}y$

integration analysis definite-integrals fourier-analysis asked Feb 18, 2020 at 17:11
math.stackexchange.com

14 votes

Why wasn't probability developed in ancient Greece?

ancient-greece probability asked Mar 8, 2016 at 21:29
hsm.stackexchange.com

14 votes

Published paper containing well-known results

journals ethics etiquette correspondence asked Jul 13, 2019 at 21:34
academia.stackexchange.com

13 votes

A log inequality for positive definite trace-one matrices

matrices inequalities eigenvalues asked Mar 13, 2016 at 20:50
mathoverflow.net

11 votes

A conjecture on the Lyapunov equation

linear-algebra matrices eigenvalues-eigenvectors matrix-equations positive-definite asked Sep 19, 2018 at 16:17
math.stackexchange.com

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