Results 21 to 30 of about 1,009,431 (281)

On distance sets, box-counting and Ahlfors-regular sets [PDF]

open access: yes, 2017
We obtain box-counting estimates for the pinned distance sets of (dense subsets of) planar discrete Ahlfors-regular sets of exponent $s>1$. As a corollary, we improve upon a recent result of Orponen, by showing that if $A$ is Ahlfors-regular of dimension
Shmerkin, Pablo
core   +3 more sources

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

The horizon problem for prevalent surfaces [PDF]

open access: yes, 2011
We investigate the box dimensions of the horizon of a fractal surface defined by a function $f \in C[0,1]^2 $. In particular we show that a prevalent surface satisfies the `horizon property', namely that the box dimension of the horizon is one less than ...
J. M. FRASER   +5 more
core   +4 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

Experimental Study of the Multiple Fractalisation of Coal and Rock Failure Subjected to the Coupled Effects of Water, Temperature and Dynamic Loads

open access: yesApplied Sciences, 2023
The mechanical properties of water-rich coal and rock in a subzero environment are very different from those at room temperature, which causes many unexpected hazards for projects.
Tingxu Jin   +5 more
doaj   +1 more source

Coastline Fractal Dimension of Mainland, Island, and Estuaries Using Multi-temporal Landsat Remote Sensing Data from 1978 to 2018: A Case Study of the Pearl River Estuary Area

open access: yesRemote Sensing, 2020
The Pearl River Estuary Area was selected for this study. For the past 40 years, it has been one of the most complex coasts in China, yet few studies have analyzed the complexity and variations of the area’s different coastlines.
Xinyi Hu, Yunpeng Wang
doaj   +1 more source

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

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

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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