Results 1 to 10 of about 5,088 (103)

Polynomial knot and link invariants from the virtual biquandle [PDF]

open access: yes, 2012
The Alexander biquandle of a virtual knot or link is a module over a 2-variable Laurent polynomial ring which is an invariant of virtual knots and links. The elementary ideals of this module are then invariants of virtual isotopy which determine both the
ALISSA S. CRANS   +3 more
core   +3 more sources

Invariants of genus 2 mutants [PDF]

open access: yes, 2007
Pairs of genus 2 mutant knots can have different Homfly polynomials, for example some 3-string satellites of Conway mutant pairs. We give examples which have different Kauffman 3-variable polynomials, answering a question raised by Dunfield et al in ...
H. R. MORTON   +2 more
core   +3 more sources

Gauge-Invariant Operators for Singular Knots in Chern-Simons Gauge Theory [PDF]

open access: yes, 1997
We construct gauge invariant operators for singular knots in the context of Chern-Simons gauge theory. These new operators provide polynomial invariants and Vassiliev invariants for singular knots.
Akutsu   +57 more
core   +2 more sources

Virtual Biquandles [PDF]

open access: yes, 2005
In the present paper, we describe new approaches for constructing virtual knot invariants. The main background of this paper comes from formulating and bringing together the ideas of biquandle (Kauffman and Radford) the virtual quandle (Manturov), the ...
Kauffman, Louis   +1 more
core   +3 more sources

BPS counting for knots and combinatorics on words [PDF]

open access: yes, 2016
We discuss relations between quantum BPS invariants defined in terms of a product decomposition of certain series, and difference equations (quantum A-polynomials) that annihilate such series.
Kucharski, Piotr, Sułkowski, Piotr
core   +2 more sources

Refined composite invariants of torus knots via DAHA [PDF]

open access: yes, 2015
We define composite DAHA-superpolynomials of torus knots, depending on pairs of Young diagrams and generalizing the composite HOMFLY-PT polynomials in the theory of the skein of the annulus. We provide various examples.
Cherednik, Ivan, Elliot, Ross
core   +3 more sources

Quantum Racah matrices up to level 3 and multicolored link invariants

open access: yes, 2018
This paper is a next step in the project of systematic description of colored knot and link invariants started in previous papers. In this paper, we managed to explicitly find the inclusive Racah matrices, i.e.
Bai, C.   +6 more
core   +1 more source

Hopf characterization of two-dimensional Floquet topological insulators

open access: yes, 2019
We present a topological characterization of time-periodically driven two-band models in 2+1 dimensions as Hopf insulators. The intrinsic periodicity of the Floquet system with respect to both time and the underlying two-dimensional momentum space ...
Eckardt, André   +2 more
core   +1 more source

Worldsheet Interpretation of the Level-Rank Duality

open access: yes, 2015
Level-rank duality relates the observables of two different Chern-Simons theories in which the roles of the Chern-Simons level and the rank of the gauge group are exchanged.
Soroush, Masoud
core   +1 more source

Mutants and SU(3)_q invariants [PDF]

open access: yes, 1998
Details of quantum knot invariant calculations using a specific SU(3)_q-module are given which distinguish the Conway and Kinoshita-Teresaka pair of mutant knots. Features of Kuperberg's skein-theoretic techniques for SU(3)_q invariants in the context of
Morton, HR, Ryder, HJ
core  

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