# incidence matrix

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## incidence matrix

[′in·səd·əns ‚mā·triks]
(mathematics)
In a graph, the p × q matrix (bij ) for which bij = 1 if the i th vertex is an end point of the j th edge, and bij = 0 otherwise.
References in periodicals archive ?
Chandrpal Singh and Ashwani Kumar,2014) explains about Graph theory and extended incidence matrix for solving the power flow tracing problem.
p] + p), where G is the link/O-D incidence matrix for the rapid transit mode.
First, some weights are assigned to a synthetic degree of gray incidence matrix to analyze the levels of intensity (weak or strong) in each company along with bankruptcy [19].
According to Equations (3)--(8), absolute incidence matrix A, relative incidence matrix B and synthetic incidence matrix C are calculated as follows.
Stembridge [Ste1, Section 7] showed that for n = m = 7, if S' is the complement of the incidence matrix of the Fano plane, then the number of invertible 7 x 7 matrices in [F.
binary 0 or 1) entries of part-machine incidence matrix alone [1-11].
Incidence matrix (vertices matrix), [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII], relating the arches and vertices of the network oriented graph, illustrating the network interconnection nodes and lines with the number of peaks N, and the columns at the arcs T.
ij] cell element in the data incidence matrix and multiplied by the same element [a.
5*NE,NE] is the face-element incidence matrix (with weights equal to -1) and, therefore, 5-1/2B is an orthogonal matrix.
Most of the procedures related to cell design in cellular manufacturing operate on the part-machine incidence matrix in an attempt to identify block diagonality.
Where Y is a vector of phenotypes, X is a design matrix, p is a vector of fixed and covariate effects, Z is an incidence matrix relating records to individuals, u is a vector of residual additive (polygenic) effects, T is an incidence matrix relating n individuals to 2n alleles at each QTL, v is a vector of allelic effects of the QTL, and e is a vector of uncorrelated residuals with constant variance.
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