English

Weighted Analytic Torsion for Weighted Digraphs

Algebraic Topology 2023-10-12 v2

Abstract

In 2020, Alexander Grigor'yan, Yong Lin and Shing-Tung Yau [4] introduced the Reidemeister torsion and the analytic torsion for digraphs by means of the path complex and the path homology theory. Based on the analytic torsion for digraphs introduced in [4], we consider the notion of weighted analytic torsion for vertex-weighted digraphs. For any non-vanishing real functions ff and gg on the vertex set, we consider the vertex-weighted digraphs with the weights (f,g)(f,g). We calculate the (f,g)(f,g)-weighted analytic torsion by examples and prove that the (f,g)(f,g)-weighted analytic torsion only depend on the ratio f/gf/g. In particular, if the weight is of the diagonal form (f,f)(f,f), then the weighted analytic torsion equals to the usual (un-weighted) torsion.

Cite

@article{arxiv.2103.09552,
  title  = {Weighted Analytic Torsion for Weighted Digraphs},
  author = {Shiquan Ren and Chong Wang},
  journal= {arXiv preprint arXiv:2103.09552},
  year   = {2023}
}
R2 v1 2026-06-24T00:16:08.025Z