Determine if a matrix is totally unimodular using Heller and Tompkins criterium.

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Description

This function is deducorrect internal

Usage

1

Arguments

A

An object of class matrix in \{-1,0,1\}^{m\times n}. Each column must have exactly 2 nonzero elements. (This is tested by isTotallyUnimodular).

Value

TRUE if matrix is unimodular, otherwise FALSE

See Also

isTotallyUnimodular

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