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Related papers: Character varieties of odd classical pretzel knots

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An explicit formula for the $A$-polynomial of the knot with Conway's notation $C(2n,3)$ is obtained from the explicit Riley-Mednykh polynomial of it.

Geometric Topology · Mathematics 2016-11-03 Ji-Young Ham , Joongul Lee

We calculate the $E$-polynomials of the $SL_3(\mathbb{C})$ and $GL_3(\mathbb{C})$-character varieties of compact oriented surfaces of any genus and the $E$-polynomials of the $SL_2(\mathbb{C})$ and $GL_2(\mathbb{C})$-character varieties of…

Algebraic Geometry · Mathematics 2017-02-15 David Baraglia , Pedram Hekmati

We introduce twelve polynomial invariants for long virtual knots, called intersection polynomials, extending and refining the three intersection polynomials for virtual knots. They are defined via intersection numbers of cycles on a closed…

Geometric Topology · Mathematics 2025-12-08 Takuji Nakamura , Yasutaka Nakanishi , Shin Satoh , Kodai Wada

We introduce two vertex operators to realize skew odd orthogonal characters $so_{\lambda/\mu}(x^{\pm})$ and derive the Cauchy identity for the skew characters via Toeplitz-Hankel-type determinant similar to the Schur functions. The method…

Representation Theory · Mathematics 2025-10-13 Naihuan Jing , Zhijun Li , Danxia Wang , Chang Ye

We compute the nonabelian $\mathrm{SL_2}(\mathbb{C})$-character varieties of the rational knots $C(2n+1,2m,2)$ in the Conway notation, where $m$ and $n$ are non-zero integers. By studying real points on these varieties, we determine the…

Geometric Topology · Mathematics 2020-11-24 Bradley Meyer , Anh T. Tran

We use the rational Witt class of a knot in the 3-sphere as a tool for addressing questions about its unknotting number. We apply these tools to several low crossing knots (151 knots with 11 crossing and 100 knots with 12 crossings) and to…

Geometric Topology · Mathematics 2009-07-15 Stanislav Jabuka

The cosmetic crossing conjecture posits that switching a non-trivial crossing in a knot diagram always changes the knot type. Generalizing work of Balm, Friedl, Kalfagianni and Powell, and of Lidman and Moore, we give an Alexander…

Geometric Topology · Mathematics 2024-07-29 Joe Boninger

Let $r$ be an odd integer, $r\ge3$. Then the petal number of the torus knot of type $(r,r+2)$ is equal to $2r+3$.

Geometric Topology · Mathematics 2021-12-28 Hwa Jeong Lee , Gyo Taek Jin

The A-polynomial of a knot in S^3 defines a complex plane curve associated to the set of representations of the fundamental group of the knot exterior into SL(2,C). Here, we show that a non-trivial knot in S^3 has a non-trivial…

Geometric Topology · Mathematics 2014-10-01 Nathan M. Dunfield , Stavros Garoufalidis

In this paper, we extend the definition of the $SL_2(\Bbb C)$ Casson invariant to arbitrary knots $K$ in integral homology 3-spheres and relate it to the $m$-degree of the $\widehat{A}$-polynomial of $K$. We prove a product formula for the…

Geometric Topology · Mathematics 2017-07-14 Hans U. Boden , Cynthia L. Curtis

The A-polynomial of a knot is defined in terms of SL(2,C) representations of the knot group, and encodes information about essential surfaces in the knot complement. In 2005, Dunfield-Garoufalidis and Boyer-Zhang proved that it detects the…

Geometric Topology · Mathematics 2026-02-16 John A. Baldwin , Steven Sivek

We introduce a version of the Alexander polynomial for singular knots and tangles and show how it can be strengthened considerably by introducing a perturbation. For singular long knots, we also prove that our Alexander polynomial agrees…

Geometric Topology · Mathematics 2024-09-27 Martine Schut , Roland van der Veen

We study the properties of the odd Catalan numbers, C_n, modulo 2^k for k >= 2. We show that there exist only k - 1 different congruences of the odd Catalan numbers modulo 2^k. Moreover, these congruences can be obtained by C_{2^m - 1} (mod…

Number Theory · Mathematics 2011-01-12 Hsueh-Yung Lin

With the help of the evolution method we calculate all HOMFLY polynomials in all symmetric representations [r] for a huge family of (generalized) pretzel links, which are made from g+1 two strand braids, parallel or antiparallel, and depend…

High Energy Physics - Theory · Physics 2015-07-21 A. Mironov , A. Morozov , A. Sleptsov

We define a family of virtual knots generalizing the classical twist knots. We develop a recursive formula for the Alexander polynomial $\Delta_0$ (as defined by Silver and Williams) of these virtual twist knots. These results are applied…

Geometric Topology · Mathematics 2018-08-14 Isaac Benioff , Blake Mellor

We construct a 1-parameter family of $\mathrm{SL}_2(\mathbf{R})$ representations of the pretzel knot $P(-2,3,7)$. As a consequence, we conclude that Dehn surgeries on this knot are left-orderable for all rational surgery slopes less than 6.…

Geometric Topology · Mathematics 2022-07-22 Konstantinos Varvarezos

We study knots whose $\mathrm{SL}_2(\mathbb{C})$-character varieties have a component of dimension greater than one. We call such knots $\mathcal{X}$-large and introduce two diagrammatic constructions that produce $\mathcal{X}$-large knots.…

Geometric Topology · Mathematics 2026-02-03 Philip Choi , Joan Porti , Seokbeom Yoon

In this note, we compute the cyclotomic expansion formula for colored Jones polynomial of double twist knots with an odd number of half-twists $\mathcal{K}_{p,\frac{s}{2}}$ by using the Kauffman bracket skein theory. It answers a question…

Geometric Topology · Mathematics 2023-09-01 Qingtao Chen , Kefeng Liu , Shengmao Zhu

In these notes we review the calculation of Jones polynomials using a matrix representation of the braid group and Temperley-Lieb algebra. The pseudounitary representation that we consider allows constructing ``states'' from the…

High Energy Physics - Theory · Physics 2024-05-16 Dmitry Melnikov

We prove that the SL(2, C) character variety of a hyperbolic, freely 2-periodic knot has two canonical components. We also prove that the hyperbolic torsion polynomial of such a knot satisfies a factorization condition which seems to be…

Geometric Topology · Mathematics 2024-03-13 Keegan Boyle , Nicholas Rouse
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