arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1503.04124math.CO
收藏

Quasi-Carousel Tournaments

Leonardo Nagami Coregliano

英文摘要:

A tournament is called locally transitive if the outneighbourhood and the inneighbourhood of every vertex are transitive. Equivalently, a tournament is locally transitive if it avoids the tournaments $W_4$ and $L_4$, which are the only tournaments up to isomorphism on four vertices containing a unique $3$-cycle. On the other hand, a sequence of tournaments $(T_n)_{n\in\mathbb{N}}$ with $|V(T_n)| = n$ is called almost balanced if all but $o(n)$ vertices of $T_n$ have outdegree $(1/2 + o(1))n$. In the same spirit of quasi-random properties, we present several characterizations of tournament sequences that are both almost balanced and asymptotically locally transitive in the sense that the density of $W_4$ and $L_4$ in $T_n$ goes to zero as $n$ goes to infinity.

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。

↑