𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A Helly Type Theorem for Abstract Projective Geometries

✍ Scribed by Jorge L. Arocha; Javier Bracho


Publisher
Springer
Year
2010
Tongue
English
Weight
288 KB
Volume
45
Category
Article
ISSN
0179-5376

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Helly-type theorems for spheres
✍ Hiroshi Maehara πŸ“‚ Article πŸ“… 1989 πŸ› Springer 🌐 English βš– 359 KB
A Helly-type theorem for simple polygons
✍ Marilyn Breen πŸ“‚ Article πŸ“… 1996 πŸ› Springer 🌐 English βš– 321 KB

Let P be a family of simple polygons in the plane. If every three (not necessarily distinct) members of P have a simply connected union and every two members of P have a nonempty intersection, then N{P:P in P) Β’ Β’. Applying the result to a finite family C of orthogonally convex polygons, the set fq{

Helly-Type Theorems for Approximate Cove
✍ Julien Demouth; Olivier Devillers; Marc Glisse; Xavier Goaoc πŸ“‚ Article πŸ“… 2009 πŸ› Springer 🌐 English βš– 526 KB