## Abstract Conditions for a matrix to be totally unimodular, due to Camion, are applied to extend and simplify proofs of other characterizations of total unimodularity.
Total Unimodularity of Matrices
โ Scribed by Chandrasekaran, R.
- Book ID
- 118195458
- Publisher
- Society for Industrial and Applied Mathematics
- Year
- 1969
- Tongue
- English
- Weight
- 243 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0036-1399
- DOI
- 10.1137/0117092
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๐ SIMILAR VOLUMES
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 still totally unimodular. We present the following results. (i) A matrix is restricted unimodular if and only if it is 3-TU, (ii) for a 2-TU m
A ri43xsaty and sufficient chiiriweritation lrrf totally unimodular matrices is given ick is derived from a nixewrq~ condbtion for totdi unimodularity due to Camion. II~ ~~~~~~~~~~~~tj~n is then used in cunnectirsrh with a theorem of Hoffman and Kruskal to provide an elcment~ry prwf of the charactea