/explore

Click through on any links that interest you or select the planets on the right to continue exploring the Outer Web.
You are here

mycqstate.wordpress.com
| | lucatrevisan.wordpress.com
4.0 parsecs away

Travel
| | In which we show how to find the eigenvalues and eigenvectors of Cayley graphs of Abelian groups, we find tight examples for various results that we proved in earlier lectures, and, along the way, we develop the general theory of harmonic analysis which includes the Fourier transform of periodic functions of a real variable, the...
| | nickhar.wordpress.com
2.1 parsecs away

Travel
| | 1. Low-rank approximation of matrices Let $latex {A}&fg=000000$ be an arbitrary $latex {n \times m}&fg=000000$ matrix. We assume $latex {n \leq m}&fg=000000$. We consider the problem of approximating $latex {A}&fg=000000$ by a low-rank matrix. For example, we could seek to find a rank $latex {s}&fg=000000$ matrix $latex {B}&fg=000000$ minimizing $latex { \lVert A - B...
| | francisbach.com
3.6 parsecs away

Travel
| | [AI summary] This mathematical post explores the geometry of positive semi-definite matrices using the von Neumann entropy and related Bregman divergences to derive concentration inequalities for random matrices.
| | ladyonmotorbike.com
18.8 parsecs away

Travel
| We're merrily riding along and Gary says to me, over the intercom, 'I think I have a puncture'. 'Oh' I say, 'I guess we'd better stop then'. But what to do? We had packed a puncture repair kit but have not had to repair a puncture before. Fortunately, we were with friends so Perry to...