6:42 AM
0
Am I right to be surprised by this big clump of numbers divisible by large squares within a not-so-long interval? If so, should I be surprised because $(1)$ this rarely happens, or because $(2)$ it's something I didn't know about and couldn't have seen coming? Should $19^2\times205$ be given litt...
4
For graphs $F$ and $G$, let $\hom(F,G)$ denote the number of homomorphisms (adjacency preserving maps) from $F$ to $G$. Define a relation $\le_{\hom}$ on (isomorphism classes of) graphs as $G \le_{\hom} H$ if $\hom(F,G) \le \hom(F,H)$ for all graphs $F$. This relation is clearly reflexive and tra...
Dec 10, 2022 at 15:12, by Martin Sleziak
There are several tags that have been removed in the past - it might be worth checking from time to time whether some of those tags hasn't been created again. The ones I am aware of are arithmetic, calculus, classical-geometry, elementary, exact-solutions, inverse, proofs, representation, symplectic.
Posts where arithmetic was added/removed (with editors): data.stackexchange.com/mathoverflow/query/1105163/… data.stackexchange.com/mathoverflow/query/1038474/…
Most frequent taggers/removers for arithmetic: data.stackexchange.com/mathoverflow/query/1146497/… data.stackexchange.com/mathoverflow/query/1038477/…
Number of questions tagged arithmetic per month: data.stackexchange.com/mathoverflow/query/1073716/… data.stackexchange.com/mathoverflow/query/1651623/…
Number of questions tagged arithmetic per year: data.stackexchange.com/mathoverflow/query/1672251/… data.stackexchange.com/mathoverflow/query/1672252/…
« first day (3445 days earlier) ← previous day next day → last day (459 days later) »
Transcript for
Jan25
Jan '2327
Jan28
MO editors' lounge
Talk related to editing, tagging and related matters for the s...