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We study finite type invariants of nullhomologous knots in a closed 3-manifold $M$ defined in terms of certain descending filtration $\{\mathscr{K}_n(M)\}_{n\geq 0}$ of the vector space $\mathscr{K}(M)$ spanned by isotopy classes of…

Geometric Topology · Mathematics 2020-02-26 Tadayuki Watanabe

Among the knots that are the connected sum of two torus knots with cobordism distance 1, we characterize those that have 4-dimensional clasp number at least 2, and we show that their n-fold connected self-sum has 4-dimensional clasp number…

Geometric Topology · Mathematics 2021-08-27 Peter Feller , JungHwan Park

We study the band-unknotting number $u_{nb}(K)$ of a knot $K$, and how it behaves with respect to connect sums. We show that this sub-additive function is not additive under connected sums, by finding infinitely many examples of knots $K_1,…

Geometric Topology · Mathematics 2025-12-09 Nakisa Ghanbarian , Stanislav Jabuka

Batson's conjecture is a non-orientable version of Milnor's conjecture, which states that the 4-ball genus of a torus knot $T(p,q)$ is equal to $\frac{(p-1)(q-1)}{2}$. Batson's conjecture states that the nonorientable 4-ball genus is equal…

Geometric Topology · Mathematics 2020-11-03 Vincent Longo

Our goal is to systematically compute the $\mathbb{C}P^2$-genus of all prime knots up to 8-crossings. We obtain upper bounds on the $\mathbb{C}P^2$-genus via coherent band surgery. We obtain lower bounds by obstructing homological degrees…

Geometric Topology · Mathematics 2019-12-05 Jacob Pichelmeyer

Given a group endowed with a Z/2-valued morphism we associate a Gauss diagram theory, and show that for a particular choice of the group these diagrams encode faithfully virtual knots on a given arbitrary surface. This theory contains all…

Geometric Topology · Mathematics 2014-03-17 Arnaud Mortier

Using a result of Takata, we prove a formula for the colored Jones polynomial of the double twist knots $K_{(-m,-p)}$ and $K_{(-m,p)}$ where $m$ and $p$ are positive integers. In the $(-m,-p)$ case, this leads to new families of…

Geometric Topology · Mathematics 2024-07-22 Jeremy Lovejoy , Robert Osburn

We suggest a new construction for the Quantum Groups - Jones polynomials of torus knots in terms of the PBW theorem of DAHA for any root systems and weights (justified for type A). The main focus is on the DAHA super-polynomials, a stable…

Quantum Algebra · Mathematics 2012-08-07 Ivan Cherednik

Let $K_{(m,p)}$ denote the family of double twist knots where $2m-1$ and $2p$ are non-zero integers denoting the number of half-twists in each region. Using a result of Takata, we prove a formula for the colored Jones polynomial of…

Geometric Topology · Mathematics 2021-02-03 Jeremy Lovejoy , Robert Osburn

In math.GT/0002110 the author's Theorems 1.1 and 1.2, combined, implied that iterated torus knots are transversally simple. This result is in error and this erratum pin points the error. In "An addendum on iterated torus knots" a more…

Geometric Topology · Mathematics 2007-05-23 William W. Menasco

We consider braids with repeating patterns inside arbitrary knots which provides a multi-parametric family of knots, depending on the "evolution" parameter, which controls the number of repetitions. The dependence of knot (super)polynomials…

High Energy Physics - Theory · Physics 2014-01-30 A. Mironov , A. Morozov , An. Morozov

Torsion and Betti numbers for knots are special cases of more general invariants associated to a finitely generated group G and epimorphism from G to the integers. The sequence of Betti numbers is always periodic; under mild hypotheses, the…

Geometric Topology · Mathematics 2007-05-23 Daniel S. Silver , Susan G. Williams

Symmetry of geometrical figures is reflected in regularities of their algebraic invariants. Algebraic regularities are often preserved when the geometrical figure is topologically deformed. The most natural, intuitively simple but…

Geometric Topology · Mathematics 2007-05-23 Jozef H. Przytycki

The asymptotic expansion of quantum knot invariants in complex Chern-Simons theory gives rise to factorially divergent formal power series. We conjecture that these series are resurgent functions whose Stokes automorphism is given by a pair…

High Energy Physics - Theory · Physics 2021-06-30 Stavros Garoufalidis , Jie Gu , Marcos Marino

We present an enhanced prime decomposition theorem for knots that gives the isotopy classes of composite knots that can be constructed from a given list of prime factors (allowing for the mirroring and orientation reversing for each…

Geometric Topology · Mathematics 2014-11-14 Matt Mastin

We relate the stability of knot invariants under twisting a pair of strands to the stability of symmetric quivers under unlinking (or linking) operation. Starting from the HOMFLY-PT skein relations, we confirm the stable growth of…

High Energy Physics - Theory · Physics 2025-08-27 Sachin Chauhan , Piotr Kucharski , Dmitry Noshchenko , Ramadevi Pichai , Vivek Kumar Singh , Marko Stošić

The bridge index and superbridge index of a knot are important invariants in knot theory. We define the bridge map of a knot conformation, which is closely related to these two invariants, and interpret it in terms of the tangent indicatrix…

Geometric Topology · Mathematics 2012-05-24 Colin Adams , Dan Collins , Katherine Hawkins , Charmaine Sia , Robert Silversmith , Bena Tshishiku

Surgery on a knot in $S^3$ is said to be an alternating surgery if it yields the double branched cover of an alternating link. The main theoretical contribution is to show that the set of alternating surgery slopes is algorithmically…

Geometric Topology · Mathematics 2026-05-08 Kenneth L. Baker , Marc Kegel , Duncan McCoy

We re-build the quantum sl2 unified invariant of knots $F_{\infty}$ from braid groups' action on tensors of Verma modules. It is a two variables series having the particularity of interpolating both families of colored Jones polynomials and…

Geometric Topology · Mathematics 2022-01-03 Jules Martel , Sonny Willetts

Large N duality conjecture between U(N) Chern-Simons gauge theory on $S^3$ and A-model topological string theory on the resolved conifold was verified at the level of partition function and Wilson loop observables. As a consequence, the…

High Energy Physics - Theory · Physics 2009-11-11 Pravina Borhade , P. Ramadevi