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In this paper I discuss the formation of topological defects in quantum field theory and the relation between fractals and coherent states. The study of defect formation is particularly useful in the understanding of the same mathematical…

高能物理 - 理论 · 物理学 2008-08-22 Giuseppe Vitiello

Fractals are geometric shapes that can display complex and self-similar patterns found in nature (e.g., clouds and plants). Recent works in visual recognition have leveraged this property to create random fractal images for model…

计算机视觉与模式识别 · 计算机科学 2023-03-23 Cheng-Hao Tu , Hong-You Chen , David Carlyn , Wei-Lun Chao

The construction of fractal generalized zone plates (FraGZPs) from a set of periodic diffractive optical elements with circular symmetry is proposed. This allows us to increase the number of foci of a conventional fractal zone plate…

Spectral discretizations of fractional derivative operators are examined, where the approximation basis is related to the set of Jacobi polynomials. The pseudo-spectral method is implemented by assuming that the grid, used to represent the…

数值分析 · 数学 2018-03-29 Lorella Fatone , Daniele Funaro

A new calculus based on fractal subsets of the real line is formulated. In this calculus, an integral of order $\alpha, 0 < \alpha \leq 1$, called $F^\alpha$-integral, is defined, which is suitable to integrate functions with fractal…

数学物理 · 物理学 2007-05-23 Abhay Parvate , A. D. Gangal

There is a way of assigning a realizability notion to each degree of incomputability. In our setting, we make use of Weihrauch degrees (degrees of incomputability/discontinuity of partial multi-valued functions) to obtain Lifschitz-like…

逻辑 · 数学 2025-05-07 Takayuki Kihara

Certain operator algebras A on a Hilbert space have the property that every densely defined linear transformation commuting with A is closable. Such algebras are said to have the closability property. They are important in the study of the…

泛函分析 · 数学 2009-08-10 H. Bercovici , R. G. Douglas , C. Foias , C. Pearcy

The cluster analysis of very large objects is an important problem, which spans several theoretical as well as applied branches of mathematics and computer science. Here we suggest a novel approach: under assumption of local convergence of…

组合数学 · 数学 2015-10-28 Jaroslav Nesetril , Patrice Ossona de Mendez

One of the motivations for using fractional calculus in physical systems is due to fact that many times, in the space and time variables we are dealing which exhibit coarse-grained phenomena, meaning that infinitesimal quantities cannot be…

综合物理 · 物理学 2018-10-31 Joydip Banerjee , Uttam Ghosh , Susmita Sarkar , Shantanu Das

We study cut algebras which are toric rings associated to graphs. The key idea is to consider suitable retracts to understand algebraic properties and invariants of such algebras like being a complete intersection, having a linear…

交换代数 · 数学 2021-05-18 Tim Roemer , Sara Saeedi Madani

A way to add an extra dimension is briefly discussed.

经典分析与常微分方程 · 数学 2007-10-15 Stephen Semmes

This article gives a summary of the author's Ph.D. dissertation (arXiv:1609.06297). In addition to an overview of notions and results, it also provides sketches of various proofs and simplified presentations of certain abstract results of…

计算机科学中的逻辑 · 计算机科学 2018-11-05 Abhisekh Sankaran

We investigate some basic applications of Fractional Calculus (FC) to Newtonian mechanics. After a brief review of FC, we consider a possible generalization of Newton's second law of motion and apply it to the case of a body subject to a…

经典物理 · 物理学 2018-07-02 Gabriele U. Varieschi

Fractal-like structures of varying complexity are common in nature, and measure-based dimensions (Minkowski, Hausdorff) supply their basic geometric characterization. However, at the level of fundamental dynamics, which is quantum,…

高能物理 - 格点 · 物理学 2023-03-13 Ivan Horváth , Peter Markoš , Robert Mendris

Let (A,p_l)_{l\in\Bbb N} be a Frechet algebra. In this paper, we introduce the concept of Segal Frechet algebra and investigate known results about abstract Segal algebras, for Segal Frechet algebras. Also we recall the concept of…

泛函分析 · 数学 2015-07-24 F. Abtahi , S. Rahnama , A. Rejali

We study the degree of irreducible morphisms in any Auslander-Reiten component of a finite dimensional algebra over an algebraically closed field. We give a characterization for an irreducible morphism to have finite left (or right) degree.…

表示论 · 数学 2016-05-11 Patrick Le Meur , Claudia Chaio , Sonia Trepode

This paper is concerned with the problem of determining the number of division algebras which share the same collection of finite splitting fields. As a corollary we are able to determine when two central division algebras may be…

环与代数 · 数学 2010-01-22 Daniel Krashen , Kelly McKinnie

Ginzburg algebras associated to triangulated surfaces provide a means to categorify the cluster algebras of these surfaces. As shown by Ivan Smith, the finite derived category of such a Ginzburg algebra can be embedded into the Fukaya…

代数拓扑 · 数学 2023-06-22 Merlin Christ

We propose a reinterpretation of the continuum grounded in the stratified structure of definability rather than classical cardinality. In this framework, a real number is not an abstract point on the number line, but an object expressible…

综合数学 · 数学 2025-05-28 Stanislav Semenov

Fractional calculus is a generalization of classical theories of integration and differentiation to arbitrary order (i.e., real or complex numbers). In the last two decades, this new mathematical modeling approach has been widely used to…

计算机科学中的逻辑 · 计算机科学 2016-08-10 Umair Siddique , Osman Hasan , Sofiène Tahar
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