On a conjecture of Sokal concerning roots of the independence polynomial
On a conjecture of Sokal concerning roots of the independence polynomial
复制标题
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:
影响因子:
--
通讯作者:
Guus Regts
中科院分区:
文献类型:
--
作者:
Han Peters;Guus Regts
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.
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