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Suborbits and Suborbital Graphs of the Symmetric Group n S acting on Ordered r-element Subsets
(2013)
The ranks and subdegrees of the symmetric group n S acting on [r] X , the set of all ordered r-element subsets from X have been studied (See Rimberia [4]). In this paper, we examine some properties of suborbits and suborbital ...
The – matrix completion problem for digraphs of matrices with less than four directed lines
(Innovative Journal, 2013)
A real matrix is said to be –matrix if its principal minors are nonnegative and all its non-diagonal entries are non-positive. In this project, we consider the –matrix completion problem. It is shown that any digraph with ...