This post is authored by Karim Adiprasito The past months have seen some exciting progress on diameter bounds for polytopes and polytopal complexes, both in the negative and in the positive direction.… more →
Combinatorics and morewrote 6 months ago: This post is authored by Karim Adiprasito The past months have seen some exciting progress on diamet … more →
wrote 9 months ago: A system of linear inequalities defines a polytope as a feasible region. The simplex algorithm begin … more →
wrote 2 years ago: This is a new polymath3 research thread. Our aim is to tackle the polynomial Hirsch conjecture which … more →
wrote 2 years ago: This is the 5th research thread of polymath3 studying the polynomial Hirsch conjecture. As you may r … more →
wrote 2 years ago: So where are we? I guess we are trying all sorts of things, and perhaps we should try even more thin … more →
wrote 2 years ago: Here we start the second research thread about the polynomial Hirsch conjecture. I hope that people … more →
wrote 2 years ago: Gil Kalai has officially started the Polymath3 project (Polynomial Hirsch conjecture) with a researc … more →
wrote 2 years ago: I would like to start here a research thread of the long-promised Polymath3 on the polynomial Hirsch … more →
wrote 2 years ago: Francisco (Paco) Santos’s paper “A Counterexample to the Hirsch Conjecture” is n … more →
wrote 3 years ago: Polymath3 is planned to study the polynomial Hirsch conjecture. In order not to conflict with Tim Go … more →
wrote 3 years ago: Here is a link for the just-posted paper Diameter of Polyhedra: The Limits of Abstraction by Freidr … more →
wrote 3 years ago: This post is devoted to the polymath-proposal about the polynomial Hirsch conjecture. My intention i … more →
wrote 3 years ago: I can see three main avenues toward making progress on the Polynomial Hirsch conjecture. One directi … more →
wrote 3 years ago: The Abstract Polynomial Hirsch Conjecture A convex polytope is the convex hull of a finite set of po … more →
wrote 3 years ago: This post is continued here. Eddie Kim and Francisco Santos have just uploaded a survey article on … more →
wrote 4 years ago: Our Diameter problem for families of sets Consider a family of subsets of size d of the set N={1,2 … more →
wrote 4 years ago: George Dantzig and Leonid Khachyan In this part we will not progress on the diameter problem that we … more →
wrote 4 years ago: 6. First subexponential bounds. Proposition 1: How to prove it: This is easy to prove: Given two se … more →
wrote 4 years ago: Let us consider another strategy to deal with our diameter problem. Let us try to associate other gr … more →