Title
Complexity aspects of ℓ-chord convexities.
Abstract
For a graph G of order n and an integer ℓ≥1, the ℓ-chord interval of a set of vertices S of G is the set formed by S and the vertices of any path between two vertices of S having chords of length at most ℓ. The ℓ-chord interval number of G is the cardinality of a minimum set whose ℓ-chord interval is equal to V(G). If S is equal to its ℓ-chord interval, then S is ℓ-chord convex. The ℓ-chord convex hull of S is the minimum ℓ-chord convex set containing S. Our main contributions are polynomial-time algorithms for computing the (n−ℓ)-chord interval of S and the (n−ℓ)-chord interval number of G when ℓ is upper bounded by a constant, and computing the ℓ-chord convex hull of S when ℓ is part of the input.
Year
DOI
Venue
2020
10.1016/j.dam.2020.04.022
Discrete Applied Mathematics
Keywords
DocType
Volume
Convex hull,Interval number,Monophonic convexity,Triangle path convexity
Journal
284
ISSN
Citations 
PageRank 
0166-218X
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Mitre Dourado19018.43
Rodolfo Alves de Oliveira241.45