Tuesday, August 18, 2015
±Ê°ù´Ç´Ú±ð²õ²õ´Ç°ùÌý of the University of À¶Ý®ÊÓƵ and his colleagues  (Max Planck Society and Hebrew University) and (Clay Mathematical Institute and Princeton University) have proved Rota's 45-year old conjecture on the log concavity of the characteristic polynomial of matroids.
Read more via Combinatorics and Optimization news.