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Proving that a finitely generated convex cone is closed is often considered the most difficult part of geometric proofs of Farkas' lemma. We provide a short simple proof of this fact and (for completeness) derive Farkas' lemma from it using…

Optimization and Control · Mathematics 2023-12-25 Wouter Kager

In this paper, we show that the derivative of the genus-1 Virasoro conjecture for Gromov-Witten invariants along the direction of quantum volume element holds for all smooth projective varieties. This result provides new evidence for the…

Differential Geometry · Mathematics 2011-06-21 Xiaobo Liu

W. M. Hirsch formulated a beautiful conjecture on diameters of convex polyhedra.I suggest a new viewpoint with the deformation and moduli of polytopes.

Combinatorics · Mathematics 2008-04-25 Yuji Odaka

We reveal a relationship between the colored Jones polynomial and the A-polynomial for twist knots. We demonstrate that an asymptotics of the $N$-colored Jones polynomial in large $N$ gives the potential function, and that the A-polynomial…

Mathematical Physics · Physics 2010-03-11 Kazuhiro Hikami

This note provides a simple proof for the equality between the normalized volume of a convex polytope with $m$ vertices and the mixed volume of $m$ simplices and thus shows the seemingly restrictive problem of computing mixed volume of…

Metric Geometry · Mathematics 2021-08-31 Tianran Chen

We prove a law of large numbers for the volumes of families of random hyperbolic mapping tori and Heegaard splittings providing a sharp answer to a conjecture of Dunfield and Thurston.

Geometric Topology · Mathematics 2021-09-17 Gabriele Viaggi

The present paper is an addendum to "Spherical structures on torus knots and links", arXiv:1008.0312, and concerns more general case of torus knot and link cone-manifolds.

Geometric Topology · Mathematics 2015-03-17 Alexander Kolpakov

R.M. Kashaev conjectured that the asymptotic behavior of his link invariant, which equals the colored Jones polynomial evaluated at a root of unity, determines the hyperbolic volume of any hyperbolic link complement. We observe numerically…

Geometric Topology · Mathematics 2007-05-23 Hitoshi Murakami , Jun Murakami , Miyuki Okamoto , Toshie Takata , Yoshiyuki Yokota

We confirm the AJ conjecture [Ga04] that relates the A-polynomial and the colored Jones polynomial for those hyperbolic knots satisfying certain conditions. In particular, we show that the conjecture holds true for some classes of…

Geometric Topology · Mathematics 2014-01-28 Thang T. Q. Le , Anh T. Tran

In this paper we study certain variational aspects of the volume product functional restricted to the space of small projective deformations of a fixed convex body. In doing so, we provide a short proof of a theorem by Klartag: a strong…

Metric Geometry · Mathematics 2023-04-03 Florent Balacheff , Gil Solanes , Kroum Tzanev

We prove the conjecture of Do and Karev that the monotone orbifold Hurwitz numbers satisfy the Chekhov-Eynard-Orantin topological recursion.

Algebraic Geometry · Mathematics 2022-08-30 Reinier Kramer , Alexandr Popolitov , Sergey Shadrin

For a torus knot K, we bound the crosscap number c(K) in terms of the genus g(K) and crossing number n(K): c(K) \leq [(g(K)+9)/6] and c(K) \leq [(n(K) + 16)/12]. The (6n-2,3) torus knots show that these bounds are sharp.

Geometric Topology · Mathematics 2007-05-23 Thomas W. Mattman , Owen Sizemore

Vassiliev invariants up to order six for arbitrary torus knots $\{ n , m \}$, with $n$ and $m$ coprime integers, are computed. These invariants are polynomials in $n$ and $m$ whose degree coincide with their order. Furthermore, they turn…

q-alg · Mathematics 2008-02-03 M. Alvarez , J. M. F. Labastida

We establish two consequences of the Kawamata--Morrison--Totaro cone conjecture, and prove them unconditionally in all dimensions. First, for a K-trivial variety, the natural action of its automorphism group on the set of ample divisor…

Algebraic Geometry · Mathematics 2026-05-01 Daniil Serebrennikov

This paper gives a proof of the Baum-Connes conjecture with coefficients for hyperbolic groups. More precisely the injectivity of the Baum-Connes map was established by Kasparov and Skandalis and we prove the surjectivity.

Operator Algebras · Mathematics 2012-01-24 Vincent Lafforgue

We review recent developments in the theory of Thompson group representations related to knot theory.

Geometric Topology · Mathematics 2018-10-16 Vaughan F. R. Jones

We present a self-contained combinatorial approach to Fujita's conjectures in the toric case. Our main new result is a generalization of Fujita's very ampleness conjecture for toric varieties with arbitrary singularities. In an appendix, we…

Algebraic Geometry · Mathematics 2007-06-23 Sam Payne

We determine the pairs of torus knots that have a genus one cobordism between them, with one notable exception. This is done by combining obstructions using $\nu^+$ from the Heegaard Floer knot complex and explicit constructions of…

Geometric Topology · Mathematics 2020-06-25 Peter Feller , JungHwan Park

We extend Raimi's classical partition theorem to the continuous setting of the circle and $n$-dimensional torus. Building on recent work of Hegyv\'ari, Pach, and Pham in finite groups, we prove that there exist measurable partitions of the…

Combinatorics · Mathematics 2025-12-02 Hunseok Kang , Doowon Koh , Dung The Tran

We compute the Bonahon-Wong-Yang quantum invariant for self-diffeomorphisms of the four-puncture sphere explicitly, based on the representation theory of the Checkov-Fock algebra. As an application of the computation, we verify the volume…

Geometric Topology · Mathematics 2024-06-04 Tushar Pandey
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