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We consider Conway polynomials of two-bridge links as Euler continuant polynomials. As a consequence, we obtain new and elementary proofs of classical Murasugi's 1958 alternating theorem and Hartley's 1979 trapezoidal theorem. We give a…

Geometric Topology · Mathematics 2013-10-01 Pierre-Vincent Koseleff , Daniel Pecker

Weakly generalised alternating knots are knots with an alternating projection onto a closed surface in a compact irreducible 3-manifold, and they share many hyperbolic geometric properties with usual alternating knots. For example, usual…

Geometric Topology · Mathematics 2022-01-19 Efstratia Kalfagianni , Jessica S. Purcell

Let $\Delta_{L,\rho_n}(t)$ be the twisted Alexander polynomial with respect to the representation given by the composition of the lift of the holonomy representation of a certain hyperbolic link $L$ and the $n$-dimensional irreducible…

Geometric Topology · Mathematics 2019-02-08 Hiroshi Goda

Link equivalence up to isotopy in a 3-space is the problem that lies at the root of knot theory, and is important in 3-dimensional topology and geometry. We consider its restriction to alternating links, given by two alternating diagrams…

Geometric Topology · Mathematics 2025-06-10 Touseef Haider , Anastasiia Tsvietkova

For a twist knot $\mathcal{K}_{p'}$, let $M$ be the closed $3$-manifold obtained by doing $(p, q)$ Dehn-filling along $\mathcal{K}_{p'}$. In this article, we prove that Chen-Yang's volume conjecture holds for sufficiently large $|p| + |q|$…

Geometric Topology · Mathematics 2024-10-29 Huabin Ge , Yunpeng Meng , Chuwen Wang , Yuxuan Yang

By using non-positively curved cubings of prime alternating link exteriors, we prove that certain ideal triangulations of their complements, derived from reduced alternating diagrams, are non-degenerate, in the sense that none of the edges…

Geometric Topology · Mathematics 2016-12-22 Makoto Sakuma , Yoshiyuki Yokota

It has been conjectured that the algebraic crossing number of a link is uniquely determined in minimal braid representation. This conjecture is true for many classes of knots and links. The Morton-Franks-Williams inequality gives a lower…

Geometric Topology · Mathematics 2009-07-07 Keiko Kawamuro

We prove that the length of any gap in the differential grading of the Khovanov homology of any quasi-alternating link is one. As a consequence, we obtain that the length of any gap in the Jones polynomial of any such link is one. This…

Geometric Topology · Mathematics 2021-03-16 Khaled Qazaqzeh , Nafaa Chbili

It was previously shown by the second author that every knot in $S^3$ is ambient isotopic to one component of a two-component, alternating, hyperbolic link. In this paper, we define the alternating volume of a knot $K$ to be the minimum…

Geometric Topology · Mathematics 2019-01-10 Heidi Allen , Ryan Blair , Leslie Rodriguez

We investigate Fox's trapezoidal conjecture for alternating links. We show that it holds for diagrammatic Murasugi sums of special alternating links, where all sums involved have length less than three (which includes diagrammatic…

Geometric Topology · Mathematics 2024-06-14 Soheil Azarpendar , András Juhász , Tamás Kálmán

Given a knot in 3-space, one can associate a sequence of Laurrent polynomials, whose $n$th term is the $n$th colored Jones polynomial. The Generalized Volume Conjecture states that the value of the $n$-th colored Jones polynomial at $\exp(2…

Geometric Topology · Mathematics 2007-05-23 Stavros Garoufalidis , Thang TQ Le

In this paper, we prove the Bounded Height Conjecture which the author formulated in [2]. As a corollary, it follows that there are only a finite number of hyperbolic three manifolds of bounded volume and trace field degree.

Geometric Topology · Mathematics 2014-09-09 BoGwang Jeon

We study near-alternating links whose diagrams satisfy conditions generalized from the notion of semi-adequate links. We extend many of the results known for adequate knots relating their colored Jones polynomials to the topology of…

Geometric Topology · Mathematics 2020-04-07 Christine Ruey Shan Lee

We study the volume conjecture of the colored Jones invariants with sequences of colors corresponding to the deformation of the hyperbolic structure of a link complement. In particular, we investigate certain limits of the colored Jones…

Geometric Topology · Mathematics 2026-05-08 Shinichiro Kakuta

We use purely topological tools to construct several infinite families of hyperbolic links in the 3-sphere that satisfy the Turaev-Viro invariant volume conjecture posed by Chen and Yang. To show that our links satisfy the volume…

Geometric Topology · Mathematics 2021-12-01 Sanjay Kumar

Augmented alternating links are links obtained by adding trivial components that bound twice-punctured disks to non-split reduced non-2-braid prime alternating projections. These links are known to be hyperbolic. Here, we extend to show…

Geometric Topology · Mathematics 2018-03-16 Colin Adams

A knot semigroup is defined by A. Vernitski. A. Vernitski conjectured that the knot semigroup of the 2-bridge knot is isomorphic to an alternating sum semigroup. To support this conjecture, and as a first main result, we prove that the knot…

Combinatorics · Mathematics 2019-12-02 Toshinori Miyatani

Twisted torus links are given by twisting a subset of strands on a closed braid representative of a torus link. T--links are a natural generalization, given by repeated positive twisting. We establish a one-to-one correspondence between…

Geometric Topology · Mathematics 2014-02-26 Joan Birman , Ilya Kofman

We show that given n>0, there exists a hyperbolic knot K with trivial Alexander polynomial, trivial finite type invariants of order <=n, and such that the volume of the complement of K is larger than n. This contrasts with the known…

Geometric Topology · Mathematics 2014-10-01 Efstratia Kalfagianni

We give asymptotically sharp upper bounds for the Khovanov width and the dealternation number of positive braid links, in terms of their crossing number. The same braid-theoretic technique, combined with Ozsv\'ath, Stipsicz, and Szab\'o's…

Geometric Topology · Mathematics 2020-03-26 Sebastian Baader , Peter Feller , Lukas Lewark , Raphael Zentner