3 Answers votes newest views recent 8How should one present curl and divergence in an undergraduate multivariable calculus class? 1Computing channel capacities for non-symmetric channels 3Ax=0, estimate min(Hamming(x)) ? Equivalently: Bipartite graph. How to find (estimate) minimal number of vertices1 which are connected with EVEN number of vertices2 ? Equivalently: estimate minimal weight of error correcting code ?