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Previous work has shown that the Hausdorff dimension of sofic affine-invariant sets is expressed as a limit involving intricate matrix products. This limit has typically been regarded as incalculable. However, in several highly non-trivial…

动力系统 · 数学 2024-12-10 Nima Alibabaei

A system presenting fractal structure in its thermodynamical functions is introduced, and it is shown that Tsallis statistics is the correct framework for describing the thermodynamical aspects of such fractal. Its Haussdorf dimension and…

高能物理 - 唯象学 · 物理学 2016-03-09 Airton Deppman

This paper surveys work on the relation between fractal dimensions and algorithmic information theory over the past thirty years. It covers the basic development of prefix-free Kolmogorov complexity from an information theoretic point of…

逻辑 · 数学 2024-08-12 Jan Reimann

The trace of integer powers of the local density matrix corresponding to the vacuum state reduced to a region V can be formally expressed in terms of a functional integral on a manifold with conical singularities. Recently, some progress…

高能物理 - 理论 · 物理学 2011-02-16 H. Casini , M. Huerta

We analyze the singular value decomposition (SVD) and SVD entropy of Cantor fractals produced by the Kronecker product. Our primary results show that SVD entropy is a measure of image ``complexity dimension" that is invariant under the…

统计力学 · 物理学 2022-11-23 Xiaojing Weng , Altai Perry , Michael Maroun , Luat T. Vuong

The paper presents variational formulae for entropy-like functionals, including Segal and R\'enyi entropies, for normal states on semifinite von Neumann algebras. The considered functionals are of the form $\tau(f(h))$ where $\tau$ is a…

算子代数 · 数学 2025-10-10 Andrzej Łuczak , Hanna Podsędkowska , Rafał Wieczorek

Spatial patterns and processes of cities can be described with various entropy functions. However, spatial entropy always depends on the scale of measurement, and it is difficult to find a characteristic value for it. In contrast, fractal…

物理与社会 · 物理学 2018-12-19 Yanguang Chen , Jiejing Wang , Jian Feng

In this paper, we study the fractal properties of the boundary of the Cantorval connected with Guthrie-Nymann's series. In particular, we prove that such a Cantorval can be represented as a union of open intervals and a Cantor set having…

动力系统 · 数学 2024-08-27 Mykola Pratsiovytyi , Dmytro Karvatskyi

First, let the fractal dimension D=n(integer)+d(decimal), so the fractal dimensional matrix was represented by a usual matrix adds a special decimal row (column). We researched that mathematics, for example, the fractal dimensional linear…

综合物理 · 物理学 2007-07-03 Yi-Fang Chang

In this paper, we present a second partial solution for the problem of cardinality calculation of the set of fractals for its subcategory of the random virtual ones. Consistent with the deterministic case, we show that for the given…

概率论 · 数学 2022-06-07 Mohsen Soltanifar

The Hausdorff fractal dimension has been a fast-to-calculate method to estimate complexity of fractal shapes. In this work, a modified version of this fractal dimension is presented in order to make it more robust when applied in estimating…

计算机视觉与模式识别 · 计算机科学 2015-05-15 Reza Farrahi Moghaddam , Mohamed Cheriet

By appropriate scaling of coupling constants a one-parameter family of ensembles of two-dimensional geometries is obtained, which interpolates between the ensembles of (generalized) causal dynamical triangulations and ordinary dynamical…

高能物理 - 理论 · 物理学 2015-06-22 J. Ambjorn , T. Budd , Y. Watabiki

We show that for families of measures on Euclidean space which satisfy an ergodic-theoretic form of "self-similarity" under the operation of re-scaling, the dimension of linear images of the measure behaves in a semi-continuous way. We…

动力系统 · 数学 2014-09-23 Michael Hochman , Pablo Shmerkin

We compute the intrinsic Hausdorff dimension of spacetime at the infrared fixed point of the quantum conformal factor in 4D gravity. The fractal dimension is defined by the appropriate covariant diffusion equation in four dimensions and is…

高能物理 - 理论 · 物理学 2009-10-31 Ignatios Antoniadis , Pawel O. Mazur , Emil Mottola

Let $G\stackrel{\alpha}{\curvearrowright}(M,\tau)$ be a trace-preserving action of a finite group $G$ on a tracial von Neumann algebra. Suppose that $A \subset M$ is a finitely generated unital $*$-subalgebra which is globally invariant…

算子代数 · 数学 2023-07-27 Aldo Garcia Guinto

We will consider various definitions of topological entropy for multivalued nonautonomous dynamical systems in compact Hausdorff spaces. Some of them can deal with arbitrary multivalued maps, i.e. when no restrictions are imposed on them.…

动力系统 · 数学 2024-06-25 Pavel Ludvík , Jan Andres

Using convex Grothendieck fibrations, we characterize the von Neumann entropy as a functor from finite-dimensional non-commutative probability spaces and state-preserving *-homomorphisms to real numbers. Our axioms reproduce those of Baez,…

量子物理 · 物理学 2022-03-22 Arthur J. Parzygnat

The main goal of this paper has a double purpose. On the one hand, we propose a new definition in order to compute the fractal dimension of a subset respect to any fractal structure, which completes the theory of classical box-counting…

混沌动力学 · 物理学 2010-07-23 M. Fernández-Martínez , M. A Sánchez-Granero

We apply the free product construction to various local algebras in algebraic quantum field theory. If we take the free product of infinitely many identical half-sided modular inclusions with ergodic canonical endomorphism, we obtain a…

数学物理 · 物理学 2017-06-20 Roberto Longo , Yoh Tanimoto , Yoshimichi Ueda

We show that certain generating sets of Dykema and Radulescu for $L(F_r)$ have free Hausdorff dimension r and nondegenerate free Hausdorff r-entropy

算子代数 · 数学 2007-05-23 Kenley Jung