JournalsaihpdVol. 6, No. 1pp. 97–121

The bundle Laplacian on discrete tori

  • Fabien Friedli

    Université de Genève, Switzerland
The bundle Laplacian on discrete tori cover
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Abstract

We prove an asymptotic formula for the determinant of the bundle Laplacian on discrete dd-dimensional tori as the number of vertices tends to infinity. This determinant has a combinatorial interpretation in terms of cycle-rooted spanning forests. We also establish a relation (in the limit) between the spectral zeta function of a line bundle over a discrete torus, the spectral zeta function of the infinite graph Zd\mathbb Z^d and the Epstein–Hurwitz zeta function. The latter can be viewed as the spectral zeta function of the twisted continuous torus which is the limit of the sequence of discrete tori.

Cite this article

Fabien Friedli, The bundle Laplacian on discrete tori. Ann. Inst. Henri Poincaré Comb. Phys. Interact. 6 (2019), no. 1, pp. 97–121

DOI 10.4171/AIHPD/66