This is a preview. Log in through your library . Abstract Consider a square matrix with independent and identically distributed entries of zero mean and unit variance. It is well known that if the ...

We consider the skew Laplacian matrix of a digraph G → obtained by giving an arbitrary direction to the edges of a graph G having n vertices and m edges. We obtain an upper bound for the skew ...

Combinatorics and discrete mathematics form a vibrant and expansive branch of modern mathematics, dedicated to the study of finite or countable structures and the methods used to count, classify, and ...