Strong Ramsey Games: Drawing on an infinite board
Abstract
We consider the strong Ramsey-type game , played on the edge set of the infinite complete -uniform hypergraph . Two players, called FP (the first player) and SP (the second player), take turns claiming edges of with the goal of building a copy of some finite predetermined -uniform hypergraph . The first player to build a copy of wins. If no player has a strategy to ensure his win in finitely many moves, then the game is declared a draw. In this paper, we construct a -uniform hypergraph such that is a draw. This is in stark contrast to the corresponding finite game , played on the edge set of . Indeed, using a classical game-theoretic argument known as \emph{strategy stealing} and a Ramsey-type argument, one can show that for every -uniform hypergraph , there exists an integer such that FP has a winning strategy for for every .
Keywords
Cite
@article{arxiv.1605.05443,
title = {Strong Ramsey Games: Drawing on an infinite board},
author = {Dan Hefetz and Christopher Kusch and Lothar Narins and Alexey Pokrovskiy and Clément Requilé and Amir Sarid},
journal= {arXiv preprint arXiv:1605.05443},
year = {2016}
}
Comments
16 pages, updated introduction and references; improved figure