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Total Unimodularity of Matrices

โœ 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

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๐Ÿ“œ SIMILAR VOLUMES


On totally unimodular matrices
โœ A. Tamir ๐Ÿ“‚ Article ๐Ÿ“… 1976 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 431 KB

## 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.

A hierarchy of totally unimodular matric
โœ Martin Loebl; Svatopluk Poljak ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 556 KB

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 note on the total unimodularity of mat
โœ Manfred W. Padberg ๐Ÿ“‚ Article ๐Ÿ“… 1976 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 778 KB

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