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Perfect fractals are mathematical objects that, because they are generated by recursive processes, have self-similarity and infinite complexity. In particular, they also have a fractional dimension. Although several proposals for the study…

物理教育 · 物理学 2018-04-04 P. V. S. Souza , R. L. Alves , W. F. Balthazar

In a recently published paper (J. of Modern Optics 50 (9) (2003) 1477-1486) a qualitative analysis of the moire effect observed by superposing two grids containing Cantor fractal structures was presented. It was shown that the moire effect…

光学 · 物理学 2007-05-23 Luciano Zunino , Mario Garavaglia

The fractal structure of a white cauliflower is investigated by box-counting method of its cross-section. The capacity dimension of the cross-section is $1.88 \pm 0.02$ independent of directions. From the result, we predict that the…

材料科学 · 物理学 2007-05-23 Sang-Hoon Kim

In this article a collection of random self-similar fractal dendrites is constructed, and their Hausdorff dimension is calculated. Previous results determining this quantity for random self-similar structures have relied on geometrical…

概率论 · 数学 2012-10-23 David A. Croydon

In a previous paper we introduced a new `dimension spectrum', motivated by the Assouad dimension, designed to give precise information about the scaling structure and homogeneity of a metric space. In this paper we compute the spectrum…

经典分析与常微分方程 · 数学 2019-06-10 Jonathan M. Fraser , Han Yu

We investigate fractal aspects of elliptical polynomial spirals; that is, planar spirals with differing polynomial rates of decay in the two axis directions. We give a full dimensional analysis of these spirals, computing explicitly their…

经典分析与常微分方程 · 数学 2024-03-20 Stuart A. Burrell , Kenneth J. Falconer , Jonathan M. Fraser

We investigate several aspects of the Assouad dimension and the lower dimension, which together form a natural `dimension pair'. In particular, we compute these dimensions for certain classes of self-affine sets and quasi-self-similar sets…

度量几何 · 数学 2014-10-29 Jonathan M. Fraser

The fractal dimension of a surface allows its degree of roughness to be characterized quantitatively. However, limited effort is attempted to calculate the fractal dimension of surfaces computed from precisely known atomic coordinates from…

数学软件 · 计算机科学 2024-03-12 Jonathan Yik Chang Ting , Andrew Thomas Agars Wood , Amanda Susan Barnard

The fractal structures of a green broccoli and a white cauliflower are investigated by box-counting method of their cross-sections. The capacity dimensions of the cross-sections are $1.78 \pm 0.02$ for a green broccoli and $1.88 \pm 0.02$…

无序系统与神经网络 · 物理学 2007-05-23 Sang-Hoon Kim

Cohesive particles form agglomerates that are usually very porous. Their geometry, particularly their fractal dimension, depends on the agglomeration process (diffusion-limited or ballistic growth by adding single particles or…

软凝聚态物质 · 物理学 2023-12-07 Dietrich E. Wolf , Thorsten Pöschel

Much is known in the analysis of a finitely ramified self-similar fractal when the fractal has a harmonic structure: a Dirichlet form which respects the self-similarity of a fractal. What is still an open question is when such structure…

An inhomogeneous fractal set is one which exhibits different scaling behaviour at different points. The Assouad dimension of a set is a quantity which finds the `most difficult location and scale' at which to cover the set and its…

动力系统 · 数学 2018-05-02 Jonathan M. Fraser , Mike Todd

Here we propose a new method for the classification of texture images combining fractal measures (fractal dimension, multifractal spectrum and lacunarity) with local binary patterns. More specifically we compute the box counting dimension…

计算机视觉与模式识别 · 计算机科学 2021-08-31 Pedro M. Silva , Joao B. Florindo

A fractal is in essence a hierarchy with cascade structure, which can be described with a set of exponential functions. From these exponential functions, a set of power laws indicative of scaling can be derived. Hierarchy structure and…

物理与社会 · 物理学 2017-07-13 Yanguang Chen

If our aesthetic preferences are affected by fractal geometry of nature, scaling regularities would be expected to appear in all art forms, including music. While a variety of statistical tools have been proposed to analyze time series in…

斑图形成与孤子 · 物理学 2023-04-05 John McDonough , Andrzej Herczyński

We present an overview of a theory of complex dimensions of self-similar fractal strings, and compare this theory to the theory of varieties over a finite field from the geometric and the dynamical point of view. Then we combine the several…

数论 · 数学 2007-05-23 Michel L. Lapidus , Machiel van Frankenhuijsen

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…

动力系统 · 数学 2020-12-01 S. Verma , S. Jha

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

By viewing the covers of a fractal as a statistical mechanical system, the exact capacity of a multifractal is computed. The procedure can be extended to any multifractal described by a scaling function to show why the capacity and…

chao-dyn · 物理学 2009-10-22 Ronnie Mainieri

Fractals are defined as geometric shapes that exhibit symmetry of scale. This simply implies that fractal is a shape that it would still look the same even if somebody could zoom in on one of its parts an infinite number of times. This…

空间物理 · 物理学 2015-05-29 Ioannis Haranas , Ioannis Gkigkitzis , Athanasios Alexiou
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