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We consider cosmological models based on the spectral action formulation of (modified) gravity. We analyze the coupled effects, in this model, of the presence of nontrivial cosmic topology and of fractality in the large scale structure of…

General Relativity and Quantum Cosmology · Physics 2022-08-31 Pedro Guicardi , Matilde Marcolli

The development of algorithmic fractal dimensions in this century has had many fruitful interactions with geometric measure theory, especially fractal geometry in Euclidean spaces. We survey these developments, with emphasis on connections…

Computational Complexity · Computer Science 2020-07-29 Jack H. Lutz , Elvira Mayordomo

The distinctive electronic properties of quasicrystals stem from their long range structural order, with invariance under rotations and under discrete scale change, but without translational invariance. d-dimensional quasicrystals can be…

Statistical Mechanics · Physics 2021-11-24 Anuradha Jagannathan

We develop a new definition of fractals which can be considered as an abstraction of the fractals determined through self-similarity. The definition is formulated through imposing conditions which are governed the relation between the…

Metric Geometry · Mathematics 2019-08-13 Marat Akhmet , Ejaily Milad Alejaily

If a point particle moves chaotically through a periodic array of scatterers the associated transport coefficients are typically irregular functions under variation of control parameters. For a piecewise linear two-parameter map we analyze…

Chaotic Dynamics · Physics 2009-11-10 R. Klages , T. Klauss

In this article, we first prove a general result in topology which states that every quasi-component of a quasi-spectral space is connected. \\ As an application, the structure of the connected components of every quasi-compact…

Commutative Algebra · Mathematics 2026-04-17 Abolfazl Tarizadeh

In this paper, we study the topology associated to the fractal manifold model. It turns out that this topology is actually a family of topologies that gives to the fractal manifold a structure of variable topological space. Additionally, we…

General Mathematics · Mathematics 2012-11-16 Helene Porchon

We prove that there exists a scrambled set for the Gauss map with full Hausdorff dimension. Meanwhile, we also investigate the topological properties of the sets of points with dense or non-dense orbits.

Dynamical Systems · Mathematics 2016-09-01 Weibin Liu , Bing Li

We provide a rigorous study on dimensions of fractal interpolation function defined on a closed and bounded interval of $\mathbb{R}$ which is associated to a continuous function with respect to a base function, scaling functions and a…

Dynamical Systems · Mathematics 2020-12-01 S. Verma , S. Jha

This paper discusses some topics of enquiry concerning fractals, functions on them, and so on.

Classical Analysis and ODEs · Mathematics 2007-05-23 Stephen Semmes

In this paper, we will consider subfractals of hyperbolic iterated function systems which satisfy the open set condition. The subfractals will consist of points associated with infinite strings from a subshift of finite type or sofic…

Dynamical Systems · Mathematics 2016-01-20 Elizabeth Sattler

Much of the structure in metric spaces that allows for the creation of fractals exists in more generalized non-metrizable spaces. In particular the same theorems regarding the behavior of compact sets can be proven in the more general…

General Topology · Mathematics 2015-11-17 Annie Carter , Daniel Lithio , Tristan Tager

In fractal geometry, the main objects of study have been geometric objects with a global dimension that need not be integer valued. More recently, locally fractal objects, ones in which the dimension is a local property rather than a global…

Complex Variables · Mathematics 2016-04-22 Raphael Reyna , Steven Damelin

We introduce a fractal dimension for a metric space defined in terms of the persistent homology of extremal subsets of that space. We exhibit hypotheses under which this dimension is comparable to the upper box dimension; in particular, the…

Metric Geometry · Mathematics 2019-07-31 Benjamin Schweinhart

A recent quasiclassical description of a tunneling universe model is shown to exhibit chaotic dynamics by an analysis of fractal dimensions in the plane of initial values. This result relies on non-adiabatic features of the quantum…

General Relativity and Quantum Cosmology · Physics 2023-11-15 Martin Bojowald , Ari Gluckman

By decreasing the transversal confinement potential in interacting one-dimensional spinless electrons and populating the second energetically lowest sub-band, for not too strong interactions system transitions into a quasi-one-dimensional…

Strongly Correlated Electrons · Physics 2016-05-25 G. Sun , T. Vekua

Fractals such as the Cantor set can be equipped with intrinsic arithmetic operations (addition, subtraction, multiplication, division) that map the fractal into itself. The arithmetics allows one to define calculus and algebra intrinsic to…

General Relativity and Quantum Cosmology · Physics 2016-01-20 Diederik Aerts , Marek Czachor , Maciej Kuna

We review the status of understanding of the fractal structure of the quantum spacetime of 2d gravity coupled to conformal matter with c <= 1, with emphasis put on the results obtained last year.

High Energy Physics - Lattice · Physics 2009-10-31 K. N. Anagnostopoulos

Some basic facts about Fredholm indices are briefly reviewed, often used in connection with Toeplitz and pseudodifferential operators, and which may be relevant for operators associated to fractals.

Classical Analysis and ODEs · Mathematics 2007-09-02 Stephen Semmes

We consider the concept of fractons, i.e. particles or quasiparticles which obey specific fractal distribution function and for each universal class h of particles we obtain a fractal-deformed Heisenberg algebra. This one takes into account…

High Energy Physics - Theory · Physics 2007-05-23 Wellington da Cruz