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In this paper we conjecture that the Links-Gould invariant of links, that we know is a generalization of the Alexander-Conway polynomial, shares some of its classical features. In particular it seems to give a lower bound for the genus of…

Geometric Topology · Mathematics 2025-05-14 Ben-Michael Kohli

In this survey we summarize results regarding the Kauffman bracket, HOMFLYPT, Kauffman 2-variable and Dubrovnik skein modules, and the Alexander polynomial of links in lens spaces, which we represent as mixed link diagrams. These invariants…

Geometric Topology · Mathematics 2018-08-17 Boštjan Gabrovšek , Eva Horvat

It has been known that any Alexander polynomial of a knot can be realized by a quasipositive knot. As a consequence, the Alexander polynomial cannot detect quasipositivity. In this paper we prove a similar result about Vassiliev invariants:…

Geometric Topology · Mathematics 2007-05-23 Sebastian Baader

We present a proof of Litherland's formula for the Tristram-Levine signature of a satellite knot in terms of its constituents. Litherland's original proof used more advanced algebraic techniques, while ours uses only linear algebra and some…

Geometric Topology · Mathematics 2022-03-15 Daniel Carter

The mock Alexander polynomial is an extension of the classical Alexander polynomial, defined and studied for (virtual) knots and knotoids by the second and third authors. In this paper we consider the mock Alexander polynomial for…

Geometric Topology · Mathematics 2024-06-13 Joanna A. Ellis-Monaghan , Neslihan Gügümcü , Louis H. Kauffman , Wout Moltmaker

We discuss a matrix of periodic holomorphic functions in the upper and lower half-plane which can be obtained from a factorization of an Andersen-Kashaev state integral of a knot complement with remarkable analytic and asymptotic properties…

Geometric Topology · Mathematics 2023-11-02 Stavros Garoufalidis , Don Zagier

The Alexander polynomial (1928) is the first polynomial invariant of links devised to help distinguish links up to isotopy. Fox's conjecture (1962) -- stating that the absolute values of the coefficients of the Alexander polynomial for any…

Geometric Topology · Mathematics 2025-07-25 Elena S. Hafner , Karola Mészáros , Alexander Vidinas

One construction of the Alexander polynomial is as a quantum invariant associated with representations of restricted quantum $\mathfrak{sl}_2$ at a fourth root of unity. We generalize this construction to define a link invariant…

Quantum Algebra · Mathematics 2026-03-19 Matthew Harper

We prove Alexander- and Markov-type theorems for virtual spatial trivalent graphs and virtual trivalent braids. We provide two versions for the Markov-type theorem: one uses an algebraic approach similar to the case of classical braids and…

Geometric Topology · Mathematics 2019-06-04 Carmen Caprau , Abigayle Dirdak , Rita Post , Erica Sawyer

A classical knot is described by a one-stroke trajectory with entanglements of a string. The replica method appears as a powerful tool in statistical mechanics for a polymer or self-avoiding walk. We consider this replica N to 0 limit in…

Mathematical Physics · Physics 2023-03-09 Shinobu Hikami

This work develops some technology for accessing the loop expansion of the Kontsevich integral of a knot. The setting is an application of the LMO invariant to certain surgery presentations of knots by framed links in the solid torus. A…

Geometric Topology · Mathematics 2007-05-23 Andrew Kricker

Fox's conjecture from 1962, that the absolute values of the coefficients of the Alexander polynomial of an alternating link are trapezoidal, has remained stubbornly open to this date. Recently Fox's conjecture was settled for all special…

Combinatorics · Mathematics 2025-04-30 Tamás Kálmán , Karola Mészáros , Alexander Postnikov

Fox's conjecture (1962) states that the sequence of absolute values of the coefficients of the Alexander polynomial of alternating links is trapezoidal. While the conjecture remains open in general, a number of special cases have been…

Combinatorics · Mathematics 2025-12-16 Karola Mészáros , Melissa Sherman-Bennett , Alexander Vidinas

In this work we demonstrate that the q-numbers and their two-parameter generalization, the q,p-numbers, can be used to obtain some polynomial invariants for torus knots and links. First, we show that the q-numbers, which are closely…

Mathematical Physics · Physics 2010-01-27 A. M. Gavrilik , A. M. Pavlyuk

Motivated by an observation of Dehornoy, we study the roots of Alexander polynomials of knots and links that are closures of positive 3-strand braids. We give experimental data on random such braids and find that the roots exhibit marked…

Geometric Topology · Mathematics 2025-03-11 Nathan M. Dunfield , Giulio Tiozzo

X.S. Lin's original definition of twisted Alexander knot polynomial is generalized for arbitrary finitely presented groups. J. Cha's fibering obstruction theorem is generalized. The group of a nontrivial virtual knot shown by L. Kauffman to…

Geometric Topology · Mathematics 2009-08-14 Daniel S. Silver , Susan G. Williams

This paper is an introduction to the state sum model for the Alexander-Conway polynomial that was introduced in the the author's book "Formal Knot Theory" (Princeton University Press, 1983). The article outlines how Alexander's original…

Geometric Topology · Mathematics 2007-05-23 Louis H. Kauffman

Many well studied knots can be realized as positive braid knots where the braid word contains a positive full twist; we say that such knots are twist positive. Some important families of knots are twist positive, including torus knots,…

Geometric Topology · Mathematics 2025-01-08 Siddhi Krishna , Hugh Morton

We extend the results of our previous paper from knots to links by using a formula for the Jones polynomial of a link derived recently by N. Reshetikhin. We illustrate this formula by an example of a torus link. A relation between the…

High Energy Physics - Theory · Physics 2009-10-28 Lev Rozansky

This talk is a report on joint work with A. Vaintrob [arXiv:math.CO/0109104 and math.GT/0111102]. It is organised as follows. We begin by recalling how the classical Matrix-Tree Theorem relates two different expressions for the lowest…

Combinatorics · Mathematics 2007-05-23 Gregor Masbaum