incidence matrix

(redirected from Incidence relation)

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 ?
alpha][member of]A] L([alpha]) with R(b,a)[member of]L(a) is an incidence relation, which represents a degree from the structure L(a) in which an element b[member of]B has a given attribute A [member of] A.
Finally, the incidence relation R is given in Table 1.
Decide whether there exists (in affirmative case also find) an incidence relation R: B x A [right arrow] [[union].
Algorithm I for deciding existence of the incidence relation R Input: a set of pairs C Output: answer YES or NO 1: [C.
We describe a procedure for finding the incidence relation corresponding to C.
This yields that the value of the incidence relation R(b, a) is fully determined by the a-th projection of [{b}.
Hence we define the incidence relation R: B x A [right arrow] [[union].