有向图的挠率与路复形
Torsion of digraphs and path complexes
摘要:
利用作者在\cite{Grigoryan-Lin-Muranov-Yau2013, Grigoryan-Lin-Muranov-Yau2014, Grigoryan-Lin-Muranov-Yau2015, Grigoryan-Lin-Muranov-Yau2020}中引入的路同调论,定义了有向图的Reidemeister挠和解析挠的概念.本文证明了两个挠率概念的同一性,并给出了有向图的笛卡儿积和并的挠率公式。
英文摘要:
We define the notions of Reidemeister torsion and analytic torsion for directed graphs by means of the path homology theory introduced by the authors in \cite{Grigoryan-Lin-Muranov-Yau2013, Grigoryan-Lin-Muranov-Yau2014, Grigoryan-Lin-Muranov-Yau2015, Grigoryan-Lin-Muranov-Yau2020}. We prove the identity of the two notions of torsions as well as obtain formulas for torsions of Cartesian products and joins of digraphs.
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