For those interested in the details, the (excellent, as always) blog of Richard Lipton sheds some light http://rjlipton.wordpress.com/2011/11/29/a-breakthrough

For those interested in the details, the (excellent, as always) blog of Richard Lipton sheds some light http://rjlipton.wordpress.com/2011/11/29/a-breakthrough-on-matrix-product/ http://rjlipton.wordpress.com/2011/11/29/a-breakthrough-on-m...