Title
Approximately locating an invisible agent in a graph with relative distance queries.
Abstract
In a pursuit evasion game on a finite, simple, undirected, and connected graph G, a first player visits vertices m1,m2,… of G, where mi+1 is in the closed neighborhood of mi for every i, and a second player probes arbitrary vertices c1,c2,… of G, and learns whether or not the distance between ci+1 and mi+1 is at most the distance between ci and mi. Up to what distance d can the second player determine the position of the first? For trees of bounded maximum degree and grids, we show that d is bounded by a constant. We conjecture that d=O(logn) for every graph G of order n, and show that d=0 if mi+1 may differ from mi only if i is a multiple of some sufficiently large integer.
Year
DOI
Venue
2018
10.1016/j.disc.2018.05.006
Discrete Mathematics
Keywords
Field
DocType
Pursuit and evasion game
Integer,Discrete mathematics,Binary logarithm,Combinatorics,Vertex (geometry),Pursuit-evasion,Degree (graph theory),Connectivity,Conjecture,Mathematics,Bounded function
Journal
Volume
Issue
ISSN
341
8
0012-365X
Citations 
PageRank 
References 
0
0.34
8
Authors
2
Name
Order
Citations
PageRank
Dennis Dayanikli100.34
Dieter Rautenbach2946138.87