Hyperopic Cops and Robbers - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2017

Hyperopic Cops and Robbers

Résumé

We introduce a new variant of the game of Cops and Robbers played on graphs, where the robber is invisible unless outside the neighbor set of a cop. The hyperopic cop number is the corresponding analogue of the cop number, and we investigate bounds and other properties of this parameter. We characterize the cop-win graphs for this variant, along with graphs with the largest possible hyperopic cop number. We analyze the cases of graphs with diameter 2 or at least 3, focusing on when the hyperopic cop number is at most one greater than the cop number. We show that for planar graphs, as with the usual cop number, the hyperopic cop number is at most 3. The hyperopic cop number is considered for countable graphs, and it is shown that for connected chains of graphs, the hyperopic cop density can be any real number in [0, 1/2].
Fichier principal
Vignette du fichier
HyperopicCops1027.pdf (165.75 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01627391 , version 1 (01-11-2017)
hal-01627391 , version 2 (07-10-2018)

Identifiants

  • HAL Id : hal-01627391 , version 1

Citer

Anthony Bonato, Nancy E Clarke, Danielle Cox, Stephen Finbow, Fionn Mc Inerney, et al.. Hyperopic Cops and Robbers. 2017. ⟨hal-01627391v1⟩
503 Consultations
301 Téléchargements

Partager

Gmail Facebook X LinkedIn More