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arXiv 1706.04746cs.DCcs.DS
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改进的分布式度分裂和边着色

Improved Distributed Degree Splitting and Edge Coloring

Mohsen Ghaffari, Juho Hirvonen, Fabian Kuhn, Yannic Maus, Jukka Suomela, Jara Uitto

摘要:

度分裂问题需要将图的边着色为红色或蓝色,使得每个节点在每种颜色下具有几乎相同数量的边,直到一个小的添加剂差异。该问题的有向变体需要定向边,使得每个节点具有几乎相同数量的传入和传出边,再次达到小的添加剂差异。我们为这两种变体提出了确定性分布式算法,这些算法改进了Ghaffari和Su [SODA'17]提出的对应算法:我们的算法显着更简单,更快,并且具有更小的差异。这也导致了一个更快,更简单的确定性算法的$(2+o(1))Δ$ -边着色,改进的Ghaffari和苏。

英文摘要:

The degree splitting problem requires coloring the edges of a graph red or blue such that each node has almost the same number of edges in each color, up to a small additive discrepancy. The directed variant of the problem requires orienting the edges such that each node has almost the same number of incoming and outgoing edges, again up to a small additive discrepancy. We present deterministic distributed algorithms for both variants, which improve on their counterparts presented by Ghaffari and Su [SODA'17]: our algorithms are significantly simpler and faster, and have a much smaller discrepancy. This also leads to a faster and simpler deterministic algorithm for $(2+o(1))Δ$-edge-coloring, improving on that of Ghaffari and Su.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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