We develop equivalent conditions for strong unimodularity, first in algebraic, then in graph theoretic terms. This provides a link with the theory of unimodular ...
This work presents the implications of the decomposition of regular matroids to networks and related classes of matrices, and shows that strongly unimodular ...
We develop equivalent conditions for strong unimodularity, first in algebraic, then in graph theoretic terms. This provides a link with the theory of unimodular ...
Strong unimodularity for matrices and hypergraphs. Authors. Yves Crama · Peter L. Hammer · Toshihide Ibaraki. Publication date: 1986. Publisher: Published by ...
In this paper we give a very simple algorithm to test whether a matrix is restricted unimodular and we show that all strongly unimodular matrices can be ...
Strong unimodularity for matrices and hypergraphs · Contents. Discrete Applied Mathematics. Volume 15, Issue 2-3 · PREVIOUS ARTICLE. Generalized neighbourhoods ...
We say that a totally unimodular matrix is k-totally unimodular (k-TU), if every matrix obtained from it by setting to zero a subset of at most k entries is ...
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Feb 25, 2021 · The notion of totally unimodular matrices will help us obtain sufficient conditions for a polyhedron to be integral. Definition 1. A matrix A is ...
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Jul 12, 2024 · First, we derive a strong proximity result for the case where A is a general totally unimodular matrix: Given an optimal solution of the linear ...
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[PDF] On the Discrepancy of Strongly Unimodular Matrices - CiteSeerX
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A matrix A is said to be totally unimodular if the determinant of each square submatrix of A is 0 or ±1. Clearly the entries of a totally unimodular matrix ...