论文标题

稀疏随机图中的单环组件中给定长度的循环

Cycles of given lengths in unicyclic components in sparse random graphs

论文作者

Noy, Marc, Rasendrahasina, Vonjy, Ravelomanana, Vlady, Rué, Juanjo

论文摘要

令$ l $为$ \ {3,4,\ dots \} $的子集,让$ x_ {n,m}^{(l)} $是属于单轮的组件的周期数,其长度在随机图$ g(n,m)$中的长度为$ l $。我们发现$ x_ {n,m}^{(l)} $的限制分布在$ c <1/2 $和关键方案$ m = \ frac {n} {n} {2} {2} \ left(1+μn^{ - 1+μn^{ - 1/3} \ right)$(1)$(1)$(1)$(1)$(1)$(1)。取决于涉及系列$ \ sum_ {l \ in L} \ frac {z^l} {2l} $的条件,我们以poisson或正态分布为$ n \ to \ infty $。

Let $L$ be subset of $\{3,4,\dots\}$ and let $X_{n,M}^{(L)}$ be the number of cycles belonging to unicyclic components whose length is in $L$ in the random graph $G(n,M)$. We find the limiting distribution of $X_{n,M}^{(L)}$ in the subcritical regime $M=cn$ with $c<1/2$ and the critical regime $M=\frac{n}{2}\left(1+μn^{-1/3}\right)$ with $μ=O(1)$. Depending on the regime and a condition involving the series $\sum_{l \in L} \frac{z^l}{2l}$, we obtain in the limit either a Poisson or a normal distribution as $n\to\infty$.

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