On a conjecture of Sokal concerning roots of the independence polynomial

On a conjecture of Sokal concerning roots of the independence polynomial
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关于独立多项式根的索卡尔猜想

DOI:
10.1307/mmj/1541667626
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发表时间:
2017
期刊:
ArXiv
影响因子:
--
通讯作者:
Guus Regts
Guus Regts
中科院分区:
--
文献类型:
--
作者:
Han Peters;Guus Regts

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Sokal(2 0 0 1)关于图的独立多项式的非零域的猜想指出,给定任意自然数$\delta3$,在区间$[0,\frac{(\Delta-1)^{\Delta-1}}{(\Delta-2)^{\Delta}})$]的$\mathbbb C$中存在一个邻域,在该邻域上,任何至多具有最大度$\Delta$的图的独立多项式在其上不为零.在这里,我们证明了Sokal猜想成立,以及一个多元版本,并证明了在非零域上的最优性。重要的一步是将设置翻译成复杂动态系统的语言。
A conjecture of Sokal (2001) regarding the domain of non-vanishing for independence polynomials of graphs, states that given any natural number $\Delta \ge 3$, there exists a neighborhood in $\mathbb C$ of the interval $[0, \frac{(\Delta-1)^{\Delta-1}}{(\Delta-2)^{\Delta}})$ on which the independence polynomial of any graph with maximum degree at most $\Delta$ does not vanish. We show here that Sokal's Conjecture holds, as well as a multivariate version, and prove optimality for the domain of non-vanishing. An important step is to translate the setting to the language of complex dynamical systems.
Lee–Yang–Fisher Zeros 为 DHL 和 2D Rational Dynamics 提供,II。
DOI: --
发表时间: 2020
期刊: The Journal of geometric analysis
影响因子: --
作者:
Bleher, Pavel;Lyubich, Mikhail;Roeder, Roland
通讯作者: Roeder, Roland