INCREMENTAL CONSTRUCTION OF 2-STRUCTURES
: EHRENFEUCHT A, HARJU T, ROZENBERG G
Publisher: ELSEVIER SCIENCE BV
: 1994
Discrete Mathematics
: DISCRETE MATHEMATICS
: DISCRETE MATH
: 128
: 1-3
: 113
: 141
: 29
: 0012-365X
DOI: https://doi.org/10.1016/0012-365X(94)90107-4
A labeled 2-structure g is an edge-labeled directed graph with a reversibility condition on the labels. Each labeled 2-structure g can be represented as a tree, the prime tree of g. We characterize a labeled 2-structure h in terms of the prime tree of a labeled 2-structure g which results from h by removing one element from h. This leads to an O(n3) algorithm for the construction of the prime tree.