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The Hirsch conjecture was posed in 1957 in a letter from Warren M. Hirsch to George Dantzig. It states that the graph of a d-dimensional polytope with n facets cannot have diameter greater than n - d. Despite being one of the most…

Combinatorics · Mathematics 2013-10-29 Edward D. Kim , Francisco Santos

We study characterizations of ergodicity, weak mixing and strong mixing of W*-dynamical systems in terms of joinings and subsystems of such systems. Ergodic joinings and Ornstein's criterion for strong mixing are also discussed in this…

Operator Algebras · Mathematics 2014-02-10 Rocco Duvenhage

The conjectures of Manin and Peyre are confirmed for a certain threefold.

Number Theory · Mathematics 2016-09-12 Valentin Blomer , Jörg Brüdern , Per Salberger

We prove the existence of some types of periodic orbits for a particle moving in Euclidean three-space under the influence of the gravitational force induced by a fixed homogeneous circle. These types include periodic orbits very far and…

Classical Analysis and ODEs · Mathematics 2007-05-23 C. Azevedo , P. Ontaneda

We prove Simon's conjecture for 3-manifolds.

Group Theory · Mathematics 2018-11-08 Rita Gitik

It is conjectured that every cusped hyperbolic 3-manifold admits a geometric triangulation, i.e. it is decomposed into positive volume ideal hyperbolic tetrahedra. Here, we show that sufficiently highly twisted knots admit a geometric…

Geometric Topology · Mathematics 2023-06-14 Sophie L. Ham , Jessica S. Purcell

In this paper, we consider compatible Hom-Lie triple systems. Compatible Hom-Lie triple systems are characterized as Maurer-Cartan elements in a suitable bidifferential graded Lie algebra. We also define a cohomology theory for compatible…

Rings and Algebras · Mathematics 2025-09-17 Wen Teng , Fengshan Long , Hui Zhang , Jiulin Jin

We introduce the theory of div point sets, which aims to provide a framework to study the combinatoric nature of any set of points in general position on an Euclidean plane. We then show that proving the unsatisfiability of some first-order…

Combinatorics · Mathematics 2019-09-02 Archy Will He

We prove the GGS conjecture (1993), due to Gerstenhaber, Giaquinto, and Schack, which gives a particularly simple explicit quantization of classical r-matrices for Lie algebras gl(n) in terms of an element R satisfying the quantum…

Quantum Algebra · Mathematics 2007-05-23 Travis Schedler

This article presents a variety of algebraic proofs of Steiner's $1$-Cycle Theorem. It also demonstrates that, under an exponential upper-bound on the iterates, the only $1$-cycles in the (accelerated) $3x-1$ dynamical system are $(1)$ and…

Number Theory · Mathematics 2019-05-21 Andrey Rukhin

Possible reasons for the uniqueness of the positive geometric law in the context of stability of random extremes are explored here culminating in a conjecture characterizing the geometric law. Our reasoning comes closer in justifying the…

Probability · Mathematics 2007-06-13 S. Satheesh , N. Unnikrishnan Nair

Inspired by the Erd\H{o}s' problem in Ramsey theory, we propose a dynamical version of the problem and answer it positively for circle maps.

Dynamical Systems · Mathematics 2025-12-30 Enhui Shi , Hui Xu

Despite the many applications of rate-independent systems, their regularity theory is still largely unexplored. Usually, only weak solution with potentially very low regularity are considered, which requires non-smooth techniques. In this…

Analysis of PDEs · Mathematics 2016-03-01 Filip Rindler , Sebastian Schwarzacher

This paper wishes to foster communication between mathematicians and physicists working in mirror symmetry and orbifold Gromov-Witten theory. We provide a reader friendly review of the physics computation in [arXiv:hep-th/0607100] that…

Algebraic Geometry · Mathematics 2014-11-18 Vincent Bouchard , Renzo Cavalieri

It has long been conjectured that generic dynamical systems has finite periodic orbits, ever since the time of Poincar\'e. In this article, a perturbation method is proposed for the $C^r$ closing of periodic orbits. This method is…

Dynamical Systems · Mathematics 2023-09-15 Chang Gao

We show that infinitely many three-term arithmetic progressions $N, N+d, N+2d$ of powerful numbers exist with $d = 2\sqrt{N} + 1$. We further conjecture that infinitely many of these progressions consist of three consecutive terms in the…

Number Theory · Mathematics 2026-05-11 Wouter van Doorn

We prove the Aharoni Berger Conjecture

Combinatorics · Mathematics 2019-04-16 Vladimir Blinovsky

We prove an existence result for twisted K\"ahler-Einstein metrics, assuming an appropriate twisted K-stability condition. An improvement over earlier results is that certain non-negative twisting forms are allowed.

Differential Geometry · Mathematics 2019-11-11 Julius Ross , Gábor Székelyhidi

We prove the existence of $n$-periodic orbits for almost all $n\in\mathbb{N}$ in the R\"ossler system with attracting periodic orbit, for two sets of parameters. The proofs are computer-assisted.

Dynamical Systems · Mathematics 2021-06-30 Anna Gierzkiewicz , Piotr Zgliczyński

By using the Three-lines theorem for a certain analytic function defined in terms of the trace and a duality argument method, we prove Audenaert-Kittaneh's conjecture related to $p$-Schatten classes. This generalizes the main result…

Functional Analysis · Mathematics 2026-02-23 Teng Zhang