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In the game of Cops and Robbers, a team of cops attempts to capture a robber on a graph $G$. All players occupy vertices of $G$. The game operates in rounds; in each round the cops move to neighboring vertices, after which the robber does…

组合数学 · 数学 2018-06-20 William B. Kinnersley

A subset of the vertex set of a graph is geodetically convex if it contains every vertex on any shortest path between two elements of the subset. The convex hull of a set of vertices is the smallest convex set containing the set. We study…

组合数学 · 数学 2025-05-14 Bret J. Benesh , Dana C. Ernst , Marie Meyer , Sarah K. Salmon , Nandor Sieben

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 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

The Cops and Robber game is played on undirected finite graphs. A number of cops and one robber are positioned on vertices and take turns in sliding along edges. The cops win if they can catch the robber. The minimum number of cops needed…

组合数学 · 数学 2013-12-30 Nancy E. Clarke , Samuel Fiorini , Gwenaël Joret , Dirk Oliver Theis

The localization game is a variant of the game of Cops and Robber in which the robber is invisible and moves between adjacent vertices, but the cops can probe any $k$ vertices of the graph to obtain the distance between probed vertices and…

组合数学 · 数学 2026-02-10 Vesna Iršič Chenoweth , Matija Skrt

In a pursuit evasion game on a finite, simple, undirected, and connected graph $G$, a first player visits vertices $m_1,m_2,\ldots$ of $G$, where $m_{i+1}$ is in the closed neighborhood of $m_i$ for every $i$, and a second player probes…

组合数学 · 数学 2018-01-09 Dennis Dayanikli , Dieter Rautenbach

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

This paper introduced a pursuit and evasion game to be played on a connected graph. One player moves invisibly around the graph, and the other player must guess his position. At each time step the second player guesses a vertex, winning if…

组合数学 · 数学 2017-01-24 John Haslegrave

We study the $(a:b)$ Maker-Breaker subgraph game played on the edges of the complete graph $K_n$ on $n$ vertices, $n,a,b \in \mathbb{N}$ where the goal of Maker is to build a copy of a specific fixed subgraph $H$. In our work this is a…

组合数学 · 数学 2024-06-18 Adnane Fouadi , Mourad El Ouali , Anand Srivastav

In an introductory paper on dollar game played on a graph, Matt Baker wrote the following: ``The total number of borrowing moves required to win the game when playing the 'borrowing binge strategy' is independent of which borrowing moves…

组合数学 · 数学 2023-08-25 Marine Cases-Thomas

A gambler moves between the vertices $1, \ldots, n$ of a graph using the probability distribution $p_{1}, \ldots, p_{n}$. Multiple cops pursue the gambler on the graph, only being able to move between adjacent vertices. We investigate the…

离散数学 · 计算机科学 2016-10-11 Jesse Geneson

The semi-random graph process is a single player game in which the player is initially presented an empty graph on $n$ vertices. In each round, a vertex $u$ is presented to the player independently and uniformly at random. The player then…

组合数学 · 数学 2022-09-07 Pu Gao , Calum MacRury , Pawel Pralat

We study biased Maker-Breaker positional games between two players, one of whom is playing randomly against an opponent with an optimal strategy. In this work we focus on the case of Breaker playing randomly and Maker being "clever". The…

组合数学 · 数学 2016-04-01 Jonas Groschwitz , Tibor Szabó

In a Take-Away Game on hypergraphs, two players take turns to remove the vertices and the hyperedges of the hypergraphs. In each turn, a player must remove either a single vertex or a hyperedge. When a player chooses to remove one vertex,…

组合数学 · 数学 2022-03-21 T. H. Molena

In a Maker-Breaker game on a graph $G$, Breaker and Maker alternately claim edges of $G$. Maker wins if, after all edges have been claimed, the graph induced by his edges has some desired property. We consider four Maker-Breaker games…

组合数学 · 数学 2013-09-24 Andrew Beveridge , Andrzej Dudek , Alan Frieze , Tobias Muller , Milos Stojakovic

In the tournament game two players, called Maker and Breaker, alternately take turns in claiming an unclaimed edge of the complete graph on n vertices and selecting one of the two possible orientations. Before the game starts, Breaker fixes…

组合数学 · 数学 2019-02-20 Dennis Clemens , Heidi Gebauer , Anita Liebenau

In this paper we introduce and study the domination game on hypergraphs. This is played on a hypergraph $\mathcal{H}$ by two players, namely Dominator and Staller, who alternately select vertices such that each selected vertex enlarges the…

组合数学 · 数学 2017-10-03 Csilla Bujtás , Balázs Patkós , Zsolt Tuza , Máté vizer

The domination game is an optimization game played by two players, Dominator and Staller, who alternately select vertices in a graph $G$. A vertex is said to be dominated if it has been selected or is adjacent to a selected vertex. Each…

组合数学 · 数学 2023-02-03 Leo Versteegen

This paper considers a game in which a single cop and a single robber take turns moving along the edges of a given graph $G$. If there exists a strategy for the cop which enables it to be positioned at the same vertex as the robber…

数据结构与算法 · 计算机科学 2019-08-20 Thomas Erlebach , Jakob T. Spooner