Characterization of the Existence of an N0-Completion of a Partial N0-Matrix with an Associated Directed Cycle

الملخص EN

An n×n matrix is called an N0-matrix if all its specified principal minors are nonpositive.

In the context of partial matrices, a partial matrix is called a partial N0-matrix if all its specified principal minors are nonpositive.

In this paper we characterize the existence of an N0-matrix completion of a partial N0-matrix whose associated graph is a directed cycle.