Results 21 to 30 of about 1,003,949 (307)

A hairy box in three dimensions

open access: yesNuclear Physics B, 2020
In this short note, we consider the phases of gravity coupled to a $U(1)$ gauge field and charged scalar in 2+1 dimensions without a cosmological constant, but with box boundary conditions. This is an extension of the results in arXiv:1609.01208, but unlike in higher dimensions, here the physics has sharp differences from the corresponding AdS problem.
Chethan Krishnan   +2 more
openaire   +4 more sources

Research on Influencing Factors of Box Dimension by Simulating Grain Storage Accumulation

open access: yesLiang you shipin ke-ji, 2022
In order to study the influencing factors of grain pile permeability, the influencing factors of fractal dimension closely related to permeability were explored based on fractal theory.
CHEN Xiao-yu, LU Xin
doaj   +1 more source

Some Dimensional Results of a Class of Homogeneous Moran Sets

open access: yesJournal of Mathematics, 2021
In this paper, we construct a class of special homogeneous Moran sets: mk-quasi-homogeneous perfect sets, and obtain the Hausdorff dimension of the sets under some conditions.
Jingru Zhang, Yanzhe Li, Manli Lou
doaj   +1 more source

An effective method to compute the box-counting dimension based on the mathematical definition and intervals

open access: yesResults in Engineering, 2020
Fractal dimension is an appropriate indicator to describe the complexity of a certain geometry, and box-counting analysis is proved to be an effective and appropriate method for fractal dimension estimation which is widely used.
Jiaxin Wu, Xin Jin, Shuo Mi, Jinbo Tang
doaj   +1 more source

Embedding Properties of sets with finite box-counting dimension [PDF]

open access: yes, 2019
In this paper we study the regularity of embeddings of finite--dimensional subsets of Banach spaces into Euclidean spaces. In 1999, Hunt and Kaloshin [Nonlinearity 12 1263-1275] introduced the thickness exponent and proved an embedding theorem for ...
Margaris, Alexandros, Robinson, James C.
core   +2 more sources

Rokhlin dimension for actions of residually finite groups [PDF]

open access: yes, 2017
We introduce the concept of Rokhlin dimension for actions of residually finite groups on C*-algebras, extending previous notions of Rokhlin dimension for actions of finite groups and the integers, as introduced by Hirshberg, Winter and the third author ...
Szabo, Gabor   +2 more
core   +1 more source

Almost Sure Frequency Independence of the Dimension of the Spectrum of Sturmian Hamiltonians [PDF]

open access: yes, 2014
We consider the spectrum of discrete Schr\"odinger operators with Sturmian potentials and show that for sufficiently large coupling, its Hausdorff dimension and its upper box counting dimension are the same for Lebesgue almost every value of the ...
A. Girand   +18 more
core   +2 more sources

Visibility representations of boxes in 2.5 dimensions [PDF]

open access: yesComputational Geometry, 2016
We initiate the study of 2.5D box visibility representations (2.5D-BR) where vertices are mapped to 3D boxes having the bottom face in the plane $z=0$ and edges are unobstructed lines of sight parallel to the $x$- or $y$-axis. We prove that: $(i)$ Every complete bipartite graph admits a 2.5D-BR; $(ii)$ The complete graph $K_n$ admits a 2.5D-BR if and ...
Arleo, Alessio   +9 more
openaire   +3 more sources

Approximate resolutions and box-counting dimension

open access: yesTopology and its Applications, 2003
The notion of approximate resolution was introduced and investigated in earlier papers of S. Mardešić and the authors [\textit{S. Mardešić} and \textit{T. Watanabe}, Glas. Mat., III. Ser. 24(44), 587--637 (1989; Zbl 0715.54009); \textit{T. Miyata} and \textit{T. Watanabe}, Topology Appl. 113, No. 1--3, 211--241 (2001; Zbl 0986.54033); \textit{T. Miyata}
Miyata, Takahisa, Watanabe, Tadashi
openaire   +1 more source

Some typical properties of dimensions of sets and measures

open access: yesAbstract and Applied Analysis, 2005
This paper contains a review of recent results concerning typical properties of dimensions of sets and dimensions of measures. In particular, we are interested in the Hausdorff dimension, box dimension, and packing dimension of sets and in the Hausdorff ...
Józef Myjak
doaj   +1 more source

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