unimodular matrix

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unimodular matrix

[¦yü·nə′mäj·ə·lər ′mā·triks]
(mathematics)
A unimodulus matrix with integer entries.
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We assume that X is totally unimodular with respect to [LAMBDA], i.
d] be a list of vectors that is totally unimodular and let p [member of] [P.
Let X C A C U = Rd be a list of vectors that is totally unimodular.
The Ehrhart polynomial of a zonotope that is defined by a totally unimodular matrix is also an evaluation of the Tutte polynomial (see e.
WLOG every totally unimodular list of vectors in R1 can be written in this way.
Since X is totally unimodular, [LAMBDA]/x [subset or equal to] U/x is a lattice for every x [member of] X and X/x is totally unimodular with respect to this lattice.
20) A matrix Y is called totally unimodular if each square submatrix of Y has determinant equal to 0, + 1 or - 1.
We want to show that the matrix defining a fine cell is totally unimodular.
And Y is a totally unimodular matrix due to Corollary 4.