English
Related papers

Related papers: Idempotent means on free binary systems do not exi…

200 papers

In this paper we introduce the notion of an idempotent system. This linear algebraic object is motivated by the structure of an association scheme. We focus on a family of idempotent systems, said to be symmetric. A symmetric idempotent…

Rings and Algebras · Mathematics 2020-05-01 Kazumasa Nomura , Paul Terwilliger

We construct infinite cubefree binary words containing exponentially many distinct squares of length n. We also show that for every positive integer n, there is a cubefree binary square of length 2n.

Combinatorics · Mathematics 2009-04-14 James Currie , Narad Rampersad

We prove some vanishing and torsion-freeness results for higher direct images of adjoint pairs satisfying relative abundance and nefness conditions. These are applied to generic vanishing and weak positivity.

Algebraic Geometry · Mathematics 2024-07-24 Fanjun Meng

We introduce the notion of $\lambda$-double Lie algebra, which coincides with usual double Lie algebra when $\lambda = 0$. We state that every $\lambda$-double Lie algebra for $\lambda\neq0$ provides the structure of modified double Poisson…

Rings and Algebras · Mathematics 2022-10-04 Maxim Goncharov , Vsevolod Gubarev

We show that there does not exist a joint generalization of the theorems of Ramsey and Hindman, or more explicitly, that the property of containing a symmetric IP-set is not divisible.

Dynamical Systems · Mathematics 2015-08-24 Ethan Akin , Eli Glasner

We show that Ozawa's recent results on solid von Neumann algebras imply that there are free Araki-Woods factors, which fail to have free absorption. We also show that a free Araki-Woods factors $\Gamma (\mu, n)$ associated to a measure and…

Operator Algebras · Mathematics 2007-05-23 Dimitri Shlyakhtenko

Recently, [{arXiv:0810.3134}] is accepted and published. We present ultimate version of no-hidden-variables theorem. We derive a proposition concerning the quantum theory under the existence of the Bloch sphere in a single spin-1/2 system.…

Quantum Physics · Physics 2008-11-28 Koji Nagata

In this note, we show that the theory of tracial von Neumann algebras does not have a model companion. This will follow from the fact that the theory of any locally universal, McDuff II_1 factor does not have quantifier elimination. We also…

Logic · Mathematics 2012-07-30 Isaac Goldbring , Bradd Hart , Thomas Sinclair

In this paper additive bi-free convolution is defined for general Borel probability measures, and the limiting distributions for sums of bi-free pairs of selfadjoint commuting random variables in an infinitesimal triangular array are…

Probability · Mathematics 2017-05-17 Takahiro Hasebe , Hao-Wei Huang , Jiun-Chau Wang

We prove results about uniform convergence of densities in the free central limit theorem without assumptions of boundedness on the support.

Operator Algebras · Mathematics 2011-04-11 John D. Williams

We prove the existence of infinite dense free sets (in the usual topology) for set mappings on the reals, under reasonable assumptions.

Logic · Mathematics 2016-11-15 Shimon Garti

We study the analogue in orbit equivalence of free product decomposition and free indecomposability for countable groups. We introduce the (orbit equivalence invariant) notion of freely indecomposable ({\FI}) standard probability measure…

Group Theory · Mathematics 2020-09-17 Aurélien Alvarez , Damien Gaboriau

In this paper we develop a theory of free holomorphic functions on noncommutative Reinhardt domains generated by positive regular free holomorphic functions in n noncommuting variables. We show that the free biholomorphic classification of…

Operator Algebras · Mathematics 2011-11-15 Gelu Popescu

Parallels between the notions of nonlinear pseudobosons and of an apparent non-Hermiticity of observables as shown in paper I (arXiv: 1109.0605) are demonstrated to survive the transition to the quantum models based on the use of unbounded…

Mathematical Physics · Physics 2012-03-06 Fabio Bagarello , Miloslav Znojil

We consider the 2-generated free metabelian associative and Lie algebras over the complex field and the invariants of the dihedral groups of finite order acting on these algebras. In the associative case we find a finite set of generators…

Rings and Algebras · Mathematics 2023-11-17 Vesselin Drensky , Boyan Kostadinov

In the absence of the axiom of choice, the set-theoretic status of many natural statements about metrizable compact spaces is investigated. Some of the statements are provable in $\mathbf{ZF}$, some are shown to be independent of…

General Topology · Mathematics 2020-08-05 Kyriakos Keremedis , Eleftherios Tachtsis , Eliza Wajch

No-Signalling is a fundamental constraint on the probabilistic predictions made by physical theories. It is usually justified in terms of the constraints imposed by special relativity. However, this justification is not as clear-cut as is…

Quantum Physics · Physics 2014-12-31 Samson Abramsky , Adam Brandenburger , Andrei Savochkin

We provide a concrete formula for a dual system as well as for a conjugate system of $q$-Gaussians represented on the $q$-deformed Fock space. Moreover, using this formula, we prove the existence of a free Gibbs potential and that the…

Operator Algebras · Mathematics 2022-12-06 Akihiro Miyagawa , Roland Speicher

There is a word metric $d$ on countably generated free group $\Gamma$ such that $(\Gamma,d)$ does not admit a coarse uniform embedding into a Hilbert space.

Geometric Topology · Mathematics 2007-05-23 A. N. Dranishnikov

We prove an analogue of the Baum-Connes conjecture for free orthogonal quantum groups. More precisely, we show that these quantum groups have a $ \gamma $-element and that $ \gamma = 1 $. It follows that free orthogonal quantum groups are $…

Operator Algebras · Mathematics 2011-07-12 Christian Voigt