RICHARD W. KENYON, DAVID B. WILSON, SPANNING TREES OF GRAPHS ON SURFACES AND THE INTENSITY OF LOOP-ERASED RANDOM WALK ON PLANAR GRAPHS, Journal of the American Mathematical Society, Vol. 28, No. 4 ...

Recently, Knuth and Ciucu independently proved the surprising fact, conjectured by Stanley, that one connected component of the tensor product of a path with itself (the so-called "Aztec diamond graph ...