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 adaptively selects a vertex $v$, and adds the edge $uv$ to the graph. For a fixed monotone graph property, the objective of the player is to force the graph to satisfy this property with high probability in as few rounds as possible. In this paper, we investigate the following three properties: containing a complete graph of order $k$, having the chromatic number at least $k$, and not having an independent set of size at least $k$.
翻译:半随机图过程是一个单人游戏,在一开始有一个$n$个顶点的空图。每一轮,随机选择一个顶点$u$,玩家需要适应性选择一个顶点$v$,将边$uv$加入到图中。对于一个固定的单调图属性,玩家的目标是在尽可能少的回合中强制图以高概率满足该属性。在本文中,我们调查了以下三个属性:包含一个$k$阶完全图,其色数至少为$k$,并且不存在大小至少为$k$的独立集。