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Related papers: Online Ramsey turnaround numbers

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The restricted $(m,n;N)$-online Ramsey game is a game played between two players, Builder and Painter. The game starts with $N$ isolated vertices. Each turn Builder picks an edge to build and Painter chooses whether that edge is red or…

Combinatorics · Mathematics 2019-06-10 David Gonzalez , Xiaoyu He , Hanzhi Zheng

The $(m,n)$-online Ramsey game is a combinatorial game between two players, Builder and Painter. Starting from an infinite set of isolated vertices, Builder draws an edge on each turn and Painter immediately paints it red or blue. Builder's…

Combinatorics · Mathematics 2018-11-06 David Conlon , Jacob Fox , Andrey Grinshpun , Xiaoyu He

Consider a two-player game between players Builder and Painter. Painter begins the game by picking a coloring of the edges of $K_n$, which is hidden from Builder. In each round, Builder points to an edge and Painter reveals its color.…

Combinatorics · Mathematics 2020-08-20 Joseph Briggs , Christopher Cox

Online Ramsey game is played between Builder and Painter on an infinite board $K_{\mathbb N}$. In every round Builder selects an edge, then Painter colors it red or blue. Both know target graphs $H_1$ and $H_2$. Builder aims to create…

Combinatorics · Mathematics 2023-03-28 Grzegorz Adamski , Małgorzata Bednarska-Bzdȩga , Václav Blažej

Given a class $\mathcal{C}$ of graphs and a fixed graph $H$, the online Ramsey game for $H$ on $\mathcal C$ is a game between two players Builder and Painter as follows: an unbounded set of vertices is given as an initial state, and on each…

Combinatorics · Mathematics 2020-01-24 Hojin Choi , Ilkyoo Choi , Jisu Jeong , Sang-il Oum

The online ordered Ramsey game is played between two players, Builder and Painter, on an infinite sequence of vertices with ordered graphs $(G_1,G_2)$, which have linear orderings on their vertices. On each turn, Builder first selects an…

Combinatorics · Mathematics 2024-09-04 Emily Heath , Dylan King , Grace McCourt , Hannah Sheats , Justin Wisby

An online Ramsey game is a game between Builder and Painter, alternating in turns. They are given a graph $H$ and a graph $G$ of an infinite set of independent vertices. In each round Builder draws an edge and Painter colors it either red…

Discrete Mathematics · Computer Science 2019-01-14 Václav Blažej , Pavel Dvořák , Tomáš Valla

Consider the following one-player game played on an initially empty graph with $n$ vertices. At each stage a randomly selected new edge is added and the player must immediately color the edge with one of $r$ available colors. Her objective…

Combinatorics · Mathematics 2016-03-25 Andreas Noever

Given two graphs $H_1$ and $H_2$, an online Ramsey game is played on the edge set of $K_\mathbb{N}$. In every round Builder selects an edge and Painter colors it red or blue. Builder is trying to force Painter to create a red copy of $H_1$…

Combinatorics · Mathematics 2025-04-22 Natalia Adamska , Grzegorz Adamski

An ordered graph is a graph with a linear ordering on its vertices. The online Ramsey game for ordered graphs $G$ and $H$ is played on an infinite sequence of vertices; on each turn, Builder draws an edge between two vertices, and Painter…

Combinatorics · Mathematics 2024-03-29 Felix Christian Clemen , Emily Heath , Mikhail Lavrov

Consider a game played on the edge set of the infinite clique by two players, Builder and Painter. In each round, Builder chooses an edge and Painter colours it red or blue. Builder wins by creating either a red copy of $G$ or a blue copy…

Combinatorics · Mathematics 2014-10-21 Joanna Cyman , Tomasz Dzido , John Lapinskas , Allan Lo

In this paper we consider a game played on the edge set of the infinite clique $K_\mathbb{N}$ by two players, Builder and Painter. In each round of the game, Builder chooses an edge and Painter colors it red or blue. Builder wins when…

Combinatorics · Mathematics 2023-05-09 Mateusz Litka

Given two graphs $G$ and $H$, the online Ramsey number $\tilde{r}(G,H)$ is defined to be the minimum number of rounds that Builder can always guarantee a win in the following $(G, H)$-online Ramsey game between Builder and Painter. Starting…

Combinatorics · Mathematics 2023-02-20 Ruyu Song , Sha Wang , Yanbo Zhang

Consider the following probabilistic one-player game: The board is a graph with $n$ vertices, which initially contains no edges. In each step, a new edge is drawn uniformly at random from all non-edges and is presented to the player,…

Combinatorics · Mathematics 2009-11-20 Michael Belfrage , Torsten Mütze , Reto Spöhel

Consider the following game between two players, Builder and Painter. Builder draws edges one at a time and Painter colours them, in either red or blue, as each appears. Builder's aim is to force Painter to draw a monochromatic copy of a…

Combinatorics · Mathematics 2009-02-11 David Conlon

The online Ramsey game for graphs $G$ and $H$ is played on the infinite complete graph $K_\mathbb{N}$. Each round, Builder chooses an edge, and Painter colors it red or blue. The online Ramsey number $\tilde{r}(G,H)$ is the smallest integer…

Combinatorics · Mathematics 2026-04-21 Sam Beilis , Israel R. Curbelo

Motivated by the investigation of sharpness of thresholds for Ramsey properties in random graphs, Friedgut, Kohayakawa, R\"odl, Ruci\'nski and Tetali introduced two variants of a single-player game whose goal is to colour the edges of…

Combinatorics · Mathematics 2023-05-05 Yahav Alon , Patrick Morris , Wojciech Samotij

Given two graphs $G$ and $H$, a size Ramsey game is played on the edge set of $K_\mathbb{N}$. In every round, Builder selects an edge and Painter colours it red or blue. Builder's goal is to force Painter to create a red copy of $G$ or a…

Combinatorics · Mathematics 2022-12-15 Grzegorz Adamski , Małgorzata Bednarska-Bzdęga

Given two graph families $\mathcal H_1$ and $\mathcal H_2$, a size Ramsey game is played on the edge set of $K_\mathbb{N}$. In every round, Builder selects an edge and Painter colours it red or blue. Builder is trying to force Painter to…

Combinatorics · Mathematics 2022-11-02 Grzegorz Adamski , Małgorzata Bednarska-Bzdęga

Consider the following Ramsey game played on the edge set of $K_{\mathbb N}$. In every round, Builder selects an edge and Painter colours it red or blue. Builder's goal is to force Painter to create a red copy of a path $P_k$ on $k$…

Combinatorics · Mathematics 2023-10-17 Małgorzata Bednarska-Bzdȩga
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