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相关论文: Gluing formulas for the $L^2$-Alexander torsions

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We calculate the twisted Alexander polynomials of all tunnel number one Montesinos knots associated to their $SL_2(\mathbb{C})$-representations and obtain their leading coefficients and degrees. As a corollary, we get some interesting…

几何拓扑 · 数学 2020-08-04 Airi Aso

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…

组合数学 · 数学 2025-04-30 Tamás Kálmán , Karola Mészáros , Alexander Postnikov

We construct exact Lagrangian fillings of Legendrian torus links $\Lambda(k, n-k)$ that are fixed by a Legendrian loop that acts by $2\pi\ell/n$ rotation. Using these rotationally symmetric fillings, we produce fillings of the corresponding…

辛几何 · 数学 2025-09-24 Vincent Chen , Patton Galloway , James Hughes , Luciana Wei

Twisted torus links are given by twisting a subset of strands on a closed braid representative of a torus link. T--links are a natural generalization, given by repeated positive twisting. We establish a one-to-one correspondence between…

几何拓扑 · 数学 2014-02-26 Joan Birman , Ilya Kofman

In this first of two papers, we develop a steady-state version of classical electrodynamics on the 3-sphere and in hyperbolic 3-space, including an explicit formula for the vector-valued Green's operator, an explicit formula of Biot-Savart…

几何拓扑 · 数学 2007-05-23 Dennis DeTurck , Herman Gluck

This paper is a continuation on the 2012 paper on "Cutting Twisted Solid Tori (TSTs)", in which we considered twisted solid torus links (tst links). We generalize the notion of tst links to "surgerized tst links": recall that when…

几何拓扑 · 数学 2019-02-20 Wilson Wong , Franky Mok

We prove duality theorems for twisted Reidemeister torsions and twisted Alexander polynomials generalizing the results of Turaev. As a corollary we determine the parity of the degrees of twisted Alexander polynomials of 3-manifolds in many…

几何拓扑 · 数学 2011-07-18 Stefan Friedl , Taehee Kim , Takahiro Kitayama

Let $K$ be a genus $g$ alternating knot with Alexander polynomial $\Delta_K(T)=\sum_{i=-g}^ga_iT^i$. We show that if $|a_g|=|a_{g-1}|$, then $K$ is the torus knot $T_{2g+1,\pm2}$. This is a special case of the Fox Trapezoidal Conjecture.…

几何拓扑 · 数学 2020-07-30 Yi Ni

We provide a simple topological derivation of a formula for the Reidemeister and the analityc torsion of spheres.

几何拓扑 · 数学 2009-06-16 T. de Melo , M. Spreafico

We prove Mayberry-Murasugi's formula for links in homology 3-spheres, which was proved before only for links in the 3-sphere. Our proof uses Franz-Reidemeister torsions.

几何拓扑 · 数学 2007-05-23 Joan Porti

We give a volume formula of hyperbolic knot complements using twisted Alexander invariants.

几何拓扑 · 数学 2017-02-22 Hiroshi Goda

We connect Dedekind sums and some formulas for numerical semigroups.

数论 · 数学 2021-12-15 Gennadiy Ilyuta

In this paper we study some aspects of knots and links in lens spaces. Namely, if we consider lens spaces as quotient of the unit ball $B^{3}$ with suitable identification of boundary points, then we can project the links on the equatorial…

几何拓扑 · 数学 2012-10-01 Alessia Cattabriga , Enrico Manfredi , Michele Mulazzani

In this note we prove the Borel Conjecture for closed, irreducible and sufficiently collapsed three-dimensional Alexandrov spaces. We also pose several questions related to characterization of fundamental groups of three-dimensional…

度量几何 · 数学 2020-11-26 Noé Bárcenas , Jesús Núñez-Zimbrón

We prove that the Alexander polynomials of certain families of alternating 4-braid knots satisfy Fox's Trapezoidal Conjecture. Moreover, we give explicit formulas for the signature and for the first 4 coefficients of the Alexander…

几何拓扑 · 数学 2023-10-24 Mark E. AlSukaiti , Nafaa Chbili

In this work, we find a closed form formula for the braid index of an $n$-bridge braid, a class of positive braid knots which simultaneously generalizes torus knots, 1-bridge braids, and twisted torus knots. Our proof is elementary,…

几何拓扑 · 数学 2023-09-12 Dane Gollero , Siddhi Krishna , Marissa Loving , Viridiana Neri , Izah Tahir , Len White

We introduce the concept of tied links in the solid torus, which generalize naturally the concept of tied links in $S^3$ previously introduced by Aicardi and Juyumaya. We also define an invariant of these tied links by using skein…

环与代数 · 数学 2019-10-25 Marcelo Flores

We construct a continuous function on the torus with almost everywhere divergence triangular sums of double Fourier series. An analogous theorem we also prove for eccentrical spherical sums.

经典分析与常微分方程 · 数学 2017-02-10 Grigori Karagulyan

Let S be a triangulated 2-sphere with fixed triangulation T. We apply the methods of thin position from knot theory to obtain a simple version of the three geodesics theorem for the 2-sphere [5]. In general these three geodesics may be…

几何拓扑 · 数学 2014-09-11 Abigail Thompson

We introduce a new method for computing triply graded link homology, which is particularly well-adapted to torus links. Our main application is to the (n,n)-torus links, for which we give an exact answer for all n. In several cases, our…

几何拓扑 · 数学 2019-02-20 Ben Elias , Matthew Hogancamp