C. Xi et Zk. Min, THE UPPER-BOUNDS OF THE GENERALIZED MAXIMUM DENSITY INDEX OF IRREDUCIBLE BOOLEAN MATRICES, Linear algebra and its applications, 256, 1997, pp. 75-93
Let IBM(n, p) denote the set of all n x n irreducible Boolean matrices
with period p. This paper generalizes the concept of the index of max
imum density of A, where A is an element of IBM(n, p) with p > 1, and
obtains upper bounds on the generalized maximum density index of IBM(n
, p). (C) Elsevier Science Inc., 1997.