A non-commutative Reidemeister-Turaev torsion of homology cylinders

Autor: Nozaki, Yuta, Sato, Masatoshi, Suzuki, Masaaki
Rok vydání: 2022
Předmět:
Zdroj: Trans. Amer. Math. Soc., electronically published on April 19, 2023
Druh dokumentu: Working Paper
DOI: 10.1090/tran/8925
Popis: We compute the Reidemeister-Turaev torsion of homology cylinders which takes values in the $K_1$-group of the $I$-adic completion of the group ring $\mathbb{Q}\pi_1\Sigma_{g,1}$, and prove that its reduction to $\widehat{\mathbb{Q}\pi_1\Sigma_{g,1}}/\hat{I}^{d+1}$ is a finite-type invariant of degree $d$. We also show that the $1$-loop part of the LMO homomorphism and the Enomoto-Satoh trace can be recovered from the leading term of our torsion.
Comment: 48 pages, 7 figures
Databáze: arXiv