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相关论文: Cops and Robber on Hyperbolic Manifolds

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We study the zero-visibility cops and robbers game, where the robber is invisible to the cops until they are caught. This differs from the classic game where full information about the robber's location is known at any time. A previously…

离散数学 · 计算机科学 2025-09-08 Igor Potapov , Tymofii Prokopenko , John Sylvester

We consider a surrounding variant of cops and robbers on graphs of bounded genus. We obtain bounds on the number of cops required to surround a robber on planar graphs, toroidal graphs, and outerplanar graphs. We also obtain improved bounds…

组合数学 · 数学 2019-11-05 Peter Bradshaw , Seyyed Aliasghar Hosseini

We consider a game in which a cop searches for a moving robber on a graph using distance probes, studied by Carragher, Choi, Delcourt, Erickson and West, which is a slight variation on one introduced by Seager. Carragher, Choi, Delcourt,…

组合数学 · 数学 2020-08-12 John Haslegrave , Richard A. B. Johnson , Sebastian Koch

We consider a variant of Cops and Robbers in which both the cops and the robber are allowed to traverse up to $s$ edges on each of their turns, where $s \ge 2$. We give several general for this new model as well as establish bounds for the…

组合数学 · 数学 2025-06-27 William B. Kinnersley , Nikolas Townsend

We consider a variant of Cops and Robbers wherein each edge traversed by the robber is deleted from the graph. The focus is on determining the minimum number of cops needed to capture a robber on a graph $G$, called the {\em bridge-burning…

组合数学 · 数学 2018-12-27 William B. Kinnersley , Eric Peterson

We consider the cops and robber game variant consisting of one cop and one robber on time-varying graphs (TVG). The considered TVGs are edge periodic graphs, i.e., for each edge, a binary string $s_e$ determines in which time step the edge…

计算复杂性 · 计算机科学 2021-07-13 Nils Morawietz , Petra Wolf

We introduce and study the game of "Selfish Cops and Active Robber" (SCAR) which can be seen as an multiplayer variant of the "classic" two-player Cops and Robbers (CR) game. In classic CR all cops are controlled by a single player, who has…

离散数学 · 计算机科学 2018-09-13 G. Konstantinidis , Ath. Kehagias

The localization game is a two player combinatorial game played on a graph $G=(V,E)$. The cops choose a set of vertices $S_1 \subseteq V$ with $|S_1|=k$. The robber then chooses a vertex $v \in V$ whose location is hidden from the cops, but…

组合数学 · 数学 2022-09-07 Lyuben Lichev , Dieter Mitsche , Pawel Pralat

We consider a cops and robber game where the cops are blocking edges of a graph, while the robber occupies its vertices. At each round of the game, the cops choose some set of edges to block and right after the robber is obliged to move to…

离散数学 · 计算机科学 2020-09-09 Stratis Limnios , Christophe Paul , Joanny Perret , Dimitrios M. Thilikos

We consider a game in which a cop searches for a moving robber on a graph using distance probes, which is a slight variation on one introduced by Seager. Carragher, Choi, Delcourt, Erickson and West showed that for any n-vertex graph $G$…

组合数学 · 数学 2020-08-12 John Haslegrave , Richard A. B. Johnson , Sebastian Koch

In many variants of the game of Cops and Robbers on graphs, multiple cops play against a single robber. In 2019, Cox and Sanaei introduced a variant of the game that gives the robber a more active role than simply evading the cop. In their…

组合数学 · 数学 2022-05-17 Joshua Carlson , Meghan Halloran , Carolyn Reinhart

We investigate a pursuit-evasion game on an undirected graph in which a robber, moving at a fixed constant speed, attempts to evade a team of cops who are blind to the robber's location and can quickly travel between any pair of vertices in…

组合数学 · 数学 2025-12-01 Hector Buffière , Rutger Campbell , Kevin Hendrey , Sang-il Oum

We consider a game in which a cop searches for a moving robber on a connected graph using distance probes, which is a slight variation on one introduced by Seager. Carragher, Choi, Delcourt, Erickson and West showed that for any $n$-vertex…

组合数学 · 数学 2017-11-23 John Haslegrave , Richard A. B. Johnson , Sebastian Koch

The game of cops and robbers is a well-known game played on graphs. In this paper we consider the straight-ahead orientations of 4-regular quadrangulations of the torus and the Klein bottle and we prove that their cop number is bounded by a…

Various models to quantify the reliability of a network have been studied where certain components of the graph may fail at random and the probability that the remaining graph is connected is the proxy for reliability. In this work we…

组合数学 · 数学 2020-11-24 Maimoonah Ahmed , Ben Cameron

We investigate extremal graphs related to the game of Cops and Robbers. We focus on graphs where a single cop can catch the robber; such graphs are called cop-win. The capture time of a cop-win graph is the minimum number of moves the cop…

组合数学 · 数学 2019-03-21 David Offner , Kerry Ojakian

The deduction game is a variation of the game of cops and robber on graphs in which searchers must capture an invisible evader in at most one move. Searchers know each others' initial locations, but can only communicate if they are on the…

组合数学 · 数学 2024-12-24 Andrea Burgess , Danny Dyer , Mozhgan Farahani

In the ordinary version of the pursuit-evasion game "cops and robbers", a team of cops and a robber occupy vertices of a graph and alternately move along the graph's edges, with perfect information about each other. If a cop lands on the…

组合数学 · 数学 2016-06-29 Brendan W. Sullivan , Nikolas Townsend , Mikayla Werzanski

Here we merge the two fields of Cops and Robbers and Graph Pebbling to introduce the new topic of Cops and Robbers Pebbling. Both paradigms can be described by moving tokens (the cops) along the edges of a graph to capture a special token…

组合数学 · 数学 2026-02-10 Nancy Clarke , Joshua Forkin , Glenn Hurlbert

In this paper, we consider a variant of the cops and robbers game on a graph, introduced by Kinnersley and Peterson, in which every time the robber uses an edge, it is removed from the graph, known as bridge-burning cops and robbers. In…

组合数学 · 数学 2020-11-21 Rebekah Herrman , Peter van Hintum , Stephen G. Z. Smith