Journal of Combinatorial Theory Series B ( IF 1.2 ) Pub Date : 2023-06-20 , DOI: 10.1016/j.jctb.2023.05.004 Benjamin Moore , Luke Postle , Lise Turner
We propose local versions of Hadwiger's Conjecture, where only balls of radius around each vertex are required to be -minor-free. We ask: if a graph is locally--minor-free, is it t-colourable? We show that the answer is yes when , even in the stronger setting of list-colouring, and we complement this result with a -round distributed colouring algorithm in the LOCAL model. Further, we show that for large enough values of t, we can list-colour locally--minor-free graphs with colours, where is any value such that all -minor-free graphs are -list-colourable. We again complement this with a -round distributed algorithm.
中文翻译:
局部哈维格猜想
我们提出了哈维格猜想的本地版本,其中只有半径的球每个顶点周围都需要-无未成年人。我们问:如果一个图是局部的--无未成年人,可着色吗?我们证明答案是肯定的,即使在更强的列表着色设置中,我们用-LOCAL模型中的圆形分布式着色算法。此外,我们表明,对于足够大的t值,我们可以在本地列出颜色--无次要图表颜色,哪里是任何值使得所有-无次要图是-列表可着色。我们再次补充这一点-轮分布式算法。