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Related papers: Gluing formulas for the $L^2$-Alexander torsions

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Twisted torus knots are a generalization of torus knots, obtained by introducing additional full twists to adjacent strands of the torus knots. In this article, we present an explicit formula for the Alexander polynomial of twisted torus…

Geometric Topology · Mathematics 2025-09-10 Adnan , Kyungbae Park

We introduce $L^2$-Alexander torsions for 3-manifolds, which can be viewed as a generalization of the $L^2$-Alexander polynomial of Li--Zhang. We state the $L^2$-Alexander torsions for graph manifolds and we partially compute them for…

Geometric Topology · Mathematics 2015-11-20 Jérôme Dubois , Stefan Friedl , Wolfgang Lück

We establish a connection between the Alexander polynomial of a knot and its twisted and $L^2$-versions with the triangulations that appear in 3-dimensional hyperbolic geometry. Specifically, we introduce twisted Neumann--Zagier matrices of…

Geometric Topology · Mathematics 2026-03-12 Stavros Garoufalidis , Seokbeom Yoon

In this paper we give an explicit formula for the twisted Alexander polynomial of any torus link and show that it is a locally constant function on the $SL(2, \mathbb C)$-character variety. We also discuss similar things for the higher…

Geometric Topology · Mathematics 2019-04-18 Teruaki Kitano , Takayuki Morifuji , Anh T. Tran

We calculate the twisted Alexander polynomial with the adjoint action for torus knots and twist knots. As consequences of these calculations, we obtain the formula for the nonabelian Reidemeister torsion of torus knots in \cite{Du} and a…

Geometric Topology · Mathematics 2014-09-26 Anh T. Tran

The Torres formula, which relates the Alexander polynomial of a link to the Alexander polyomial of its sublinks, admits a generalization to the twisted setting due to Morifuji. This paper uses twisted Reidemeister torsion to obtain a second…

Geometric Topology · Mathematics 2024-12-03 Peter Seokhee Seong

We give upper and lower bounds on the leading coefficients of the $L^2$-Alexander torsions of a $3$-manifold $M$ in terms of hyperbolic volumes and of relative $L^2$-torsions of sutured manifolds obtained by cutting $M$ along certain…

Geometric Topology · Mathematics 2021-05-07 Fathi Ben Aribi , Stefan Friedl , Gerrit Herrmann

We connect Dedekind sums and Alexander polynomials of torus knots.

Geometric Topology · Mathematics 2021-12-30 Gennadiy Ilyuta

In recent years, twisted Alexander polynomial has been playing an important role in low-dimensional topology. For Montesinos links, we develop an efficient method to compute the twisted Alexander polynomial associated to any linear…

Geometric Topology · Mathematics 2021-07-08 Haimiao Chen

We show that the $L^2$-Alexander torsion of a 3-manifold is symmetric. This can be viewed as a generalization of the symmetry of the Alexander polynomial of a knot.

Geometric Topology · Mathematics 2016-01-27 Jérôme Dubois , Stefan Friedl , Wolfgang Lück

We calculate the $L^2$-Alexander torsion for Seifert fiber spaces and graph manifolds in terms of the Thurston norm.

Geometric Topology · Mathematics 2016-03-31 Gerrit Herrmann

We extend Turaev's theory of Euler structures and torsion invariants on 3-manifolds to the case of vector fields having generic behavior on the boundary. This allows to easily define gluings of Euler structures and to develop a completely…

Geometric Topology · Mathematics 2018-05-08 Stefano Borghini

The Alexander polynomial of a knot has been generalized in three different ways to give twisted invariants. The resulting invariants are usually referred to as twisted Alexander polynomials, higher-order Alexander polynomials and…

Geometric Topology · Mathematics 2014-10-28 Jérôme Dubois , Stefan Friedl , Wolfgang Lück

We give explicit formulas for the adjoint twisted Alexander polynomial and the nonabelian Reidemeister torsion of genus one two-bridge knots.

Geometric Topology · Mathematics 2016-04-13 Anh T. Tran

We consider a diagrammatic approach to investigate tame knots and links in three dimensional torus $T^3$. We obtain a finite set of generalised Reidemeister moves for equivalent links up to ambient isotopy. We give a presentation for…

Algebraic Topology · Mathematics 2023-07-11 Bao Vuong

We give an explicit formula of the Alexander polynomial of the link obtained by adding an arbitrary number of full twists to positively oriented parallel n-strands in terms of the Alexander polynomials of the links obtained by adding…

Geometric Topology · Mathematics 2022-02-28 Daren Chen

The paper studies the $L^2$-torsion of fibrations, focusing on cases that relax acyclicity and the determinant class condition. We prove the sum formula and the product formula for $L^2$-torsion in the extended abelian category. The desired…

Geometric Topology · Mathematics 2024-11-08 Chengzhang Sun

We define twisted Alexander polynomials of a complex hypersurface with arbitrary singularities. These generalize the classical Alexander polynomials of high dimensional hypersurfaces and the twisted Alexander polynomial of plane curves. We…

Geometric Topology · Mathematics 2016-01-21 Kaiho Tommy Wong

In this paper, we discuss twisted Alexander polynomials of a knot for group extensions of a finite group in two directions. Firstly, we provide a mod $p$ formula for the twisted Alexander polynomial of a knot in the $3$-sphere associated…

Geometric Topology · Mathematics 2026-05-14 Katsumi Ishikawa , Takayuki Morifuji , Masaaki Suzuki

For arborescent links, we present an efficient method of computing their Alexander polynomials. Applying this method, we express the Alexander polynomials of Montesinos links in terms of certain functions associated to rational tangles…

Geometric Topology · Mathematics 2026-04-02 Haimiao Chen
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