We're sorry but this page doesn't work properly without JavaScript enabled. Please enable it to continue.
Feedback

Theorems of Caratheodory and Tverberg with no dimension

Formal Metadata

Title
Theorems of Caratheodory and Tverberg with no dimension
Title of Series
Number of Parts
21
Author
License
CC Attribution - NonCommercial - NoDerivatives 4.0 International:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
Publisher
Release Date
Language

Content Metadata

Subject Area
Genre
Abstract
Caratheodory's classic result says that if a point p lies in the convex hull of a set P⊂Rd, then it lies in the convex hull of a subset Q⊂P of size at most d+1. What happens if we want a subset Q of size k<d+1 such that p∈convQ? In general, this is impossible as convQ is too low dimensional. We offer some remedy: p is close, in an appropriate sense, to convQ for some subset Q of size k. Similar results hold for Tverberg's theorem as well. This is joint work with Nabil Mustafa.