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Related papers: Bounds on numerical boundary slopes for Montesinos…

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We show, for every positive integer $n$, there is an alternating knot having a boundary slope with denominator $n$. We make use of Kabaya's method for boundary slopes and the layered solid torus construction introduced by Jaco and…

Geometric Topology · Mathematics 2023-09-06 Masaharu Ishikawa , Thomas W. Mattman , Koya Shimokawa

We describe an algorithm for computing boundary slopes of 2-bridge links. As an example, we work out the slopes of the links obtained by 1/k surgery on one component of the Borromean rings. A table of all boundary slopes of all 2-bridge…

Geometric Topology · Mathematics 2007-05-23 Jim Hoste , Patrick D. Shanahan

We prove new lower and upper bounds on the higher gonalities of finite graphs. These bounds are generalizations of known upper and lower bounds for first gonality to higher gonalities, including upper bounds on gonality involving…

We show that the volume of any Montesinos link can be bounded above and below in terms of the combinatorics of its diagram. This was known for Montesinos links with at most two tangles, and those with at least five tangles. We complete the…

Geometric Topology · Mathematics 2016-03-09 Kathleen Finlinson , Jessica S. Purcell

We give bounds on the number of non-simple closed curves on a negatively curved surface, given upper bounds on both length and self-intersection number. In particular, it was previously known that the number of all closed curves of length…

Geometric Topology · Mathematics 2017-02-21 Jenya Sapir

The (Strong) Slope Conjecture relates the degree of the colored Jones polynomial of a knot to certain essential surfaces in the knot complement. We verify the Slope Conjecture and the Strong Slope Conjecture for 3-string Montesinos knots…

Geometric Topology · Mathematics 2018-04-17 Xudong Leng , Zhiqing Yang , Ximin Liu

We compute the bridge spectra of cables of 2-bridge knots. We also give some results about bridge spectra and distance of Montesinos knots.

Geometric Topology · Mathematics 2017-06-13 Nicholas Owad

In this paper, we work to construct mosaic representations of knots on the torus, rather than in the plane. This consists of a particular choice of the ambient group, as well as different definitions of contiguous and suitably connected. We…

Geometric Topology · Mathematics 2014-04-16 Michael J. Carlisle , Michael S. Laufer

We investigate relationships between bounds on the crossing number and the mosaic number of mosaic knots.

Geometric Topology · Mathematics 2010-04-14 J. Alan Alewine , H. A. Dye , David Etheridge , Irina Garduno , Amber Ramos

We give some bounds on edge Folkman numbers.

Combinatorics · Mathematics 2011-05-31 Nikolay Rangelov Kolev

We derive upper and lower bounds on the determinant of an exponential matrix. They can be transformed into corresponding bounds for the determinant of a univariate Gaussian matrix.

Numerical Analysis · Mathematics 2026-03-23 Michael S. Floater

We present some upper and lower bounds for the numerical radius of a bounded linear operator defined on complex Hilbert space, which improves on the existing upper and lower bounds. We also present an upper bound for the spectral radius of…

Functional Analysis · Mathematics 2024-08-13 Pintu Bhunia , Santanu Bag , Kallol Paul

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

The paper introduces Slope Conjecture which relates the degree of the Jones polynomial of a knot and its parallels with the slopes of incompressible surfaces in the knot complement. More precisely, we introduce two knot invariants, the…

Geometric Topology · Mathematics 2010-05-26 Stavros Garoufalidis

We give an exponential improvement to the lower bound on diagonal Ramsey numbers for any fixed number of colors greater than two.

Combinatorics · Mathematics 2020-11-30 David Conlon , Asaf Ferber

We give two lower bound formulas for multicolored Ramsey numbers. These formulas improve the bounds for several small multicolored Ramsey numbers.

Combinatorics · Mathematics 2007-05-23 Aaron Robertson

Tomova, along with results of Bachman and Schleimer, showed that any high distance knot has a stair-step bridge spectrum. In this paper, we compute the bridge spectra and distance of generalized Montesinos knots. In particular, we produce…

Geometric Topology · Mathematics 2015-10-30 Nicholas Owad

We introduce an unknotting-type number of knot projections that gives an upper bound of the crosscap number of knots. We determine the set of knot projections with the unknotting-type number at most two, and this result implies classical…

Geometric Topology · Mathematics 2020-08-26 Noboru Ito , Yusuke Takimura

We investigate the question of when distinct branched surfaces in the complement of a 2-bridge knot support essential surfaces with identical boundary slopes. We determine all instances in which this occurs and identify an infinite family…

Geometric Topology · Mathematics 2015-02-17 Cynthia L. Curtis , William Franczak , Randolph J. Leiser , Ryan J. Manheimer

For a given knot, we study the minimal number of positive eigenvalues of the double branched cover over spanning surfaces for the knot. The value gives a lower bound for various genera, the dealternating number and the alternation number of…

Geometric Topology · Mathematics 2019-10-07 Kouki Sato