Skip to main content

All Questions

Filter by
Sorted by
Tagged with
1 vote
0 answers
124 views

The smallest disk containing all cirular arcs

In a comment to my recent question about covering segments by a disk, Gerhard Paseman has suggested a generalisation: replacing the segments of the original $n$-gon by a simple closed (say, convex) ...
Wolfgang's user avatar
  • 13.4k
6 votes
0 answers
199 views

A polynomial counting some packings in $\mathbb Z/N\mathbb Z$

Given two integers $n$ and $N$ such that $N>{n+1\choose 2}$, we denote by $\alpha_n(N)$ the number of elements $(x_1,\dots,x_n)$ in $(\mathbb Z/N\mathbb Z)^n$ such that the $2n$ elements $x_1,x_1+1,...
Roland Bacher's user avatar