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Symmetry
Special Issues
Functional Analysis, Fractional Operators and Symmetry/Asymmetry: Second Edition
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Functional Analysis, Fractional Operators and Symmetry/Asymmetry: Second Edition

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Mathematics".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 3190

Special Issue Editors

Dr. J. Vanterler Da C. Sousa

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Guest Editor
Department of Mathematics, Aerospace Engineering, PPGEA-UEMA, DEMATI-UEMA, São Luís 65054, MA, Brazil
Interests: fractional differential equations; functional analysis; variational approach; frac-tional calculus; analysis mathematics
Special Issues, Collections and Topics in MDPI journals
Dr. Jiabin Zuo

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Guest Editor
School of Mathematics and Information Science, Guangzhou University, Guangzhou 510006, China
Interests: fractional laplacian equations; partial differential equations
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Junesang Choi

E-Mail Website
Guest Editor
Department of Mathematics, Dongguk University, Wise Campus, Gyeongju 38066, Republic of Korea
Interests: special functions; analytic number theory; fractional calculus
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is a well-known fact that the role and effects of symmetry in mathematics and related sciences are of paramount importance. On many occasions, symmetries have been applied in mathematical formulations to solve complex problems, and thus, they have become essential and necessitate further research. Therefore, in this Special Issue, we aim to collate papers that underscore the theorical aspects and applications of symmetry in the fields of functional analysis and fractional operators.

Dr. J. Vanterler Da C. Sousa
Dr. Jiabin Zuo
Prof. Dr. Junesang Choi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • dynamical systems
  • partial differential equations
  • mathematical physics
  • symmetry operators
  • fractional operators
  • applied mathematics
  • discrete mathematics and graph theory
  • mathematical analysis
  • fractional differential equations
  • extension of linear operators
  • self-adjoint operators

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Published Papers (3 papers)

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Research

21 pages, 293 KiB  
Article
Composition Operators on Weighted Zygmund Spaces of the First Loo-keng Hua Domain
by Hong-Bin Bai
Symmetry 2024, 16(7), 828; https://doi.org/10.3390/sym16070828 - 1 Jul 2024
Viewed by 807
Abstract
Let HEI denote the first Loo-keng Hua domain. In this paper, we obtain many elementary results on HEI by the continuous and careful discussions. In some applications, we obtain some necessary conditions or sufficient conditions for the boundedness and compactness of [...] Read more.
Let HEI denote the first Loo-keng Hua domain. In this paper, we obtain many elementary results on HEI by the continuous and careful discussions. In some applications, we obtain some necessary conditions or sufficient conditions for the boundedness and compactness of the composition operators on weighted Zygmund space defined on HEI. Full article
(This article belongs to the Special Issue Functional Analysis, Fractional Operators and Symmetry/Asymmetry: Second Edition)
29 pages, 1484 KiB  
Article
On the Sums over Inverse Powers of Zeros of the Hurwitz Zeta Function and Some Related Properties of These Zeros
by Sergey Sekatskii
Symmetry 2024, 16(3), 326; https://doi.org/10.3390/sym16030326 - 7 Mar 2024
Viewed by 843
Abstract
Recently, we have applied the generalized Littlewood theorem concerning contour integrals of the logarithm of the analytical function to find the sums over inverse powers of zeros for the incomplete gamma and Riemann zeta functions, polygamma functions, and elliptical functions. Here, the same [...] Read more.
Recently, we have applied the generalized Littlewood theorem concerning contour integrals of the logarithm of the analytical function to find the sums over inverse powers of zeros for the incomplete gamma and Riemann zeta functions, polygamma functions, and elliptical functions. Here, the same theorem is applied to study such sums for the zeros of the Hurwitz zeta function ζ(s,z), including the sum over the inverse first power of its appropriately defined non-trivial zeros. We also study some related properties of the Hurwitz zeta function zeros. In particular, we show that, for any natural N and small real ε, when z tends to n = 0, −1, −2… we can find at least N zeros of ζ(s,z) in the ε neighborhood of 0 for sufficiently small |z+n|, as well as one simple zero tending to 1, etc. Full article
(This article belongs to the Special Issue Functional Analysis, Fractional Operators and Symmetry/Asymmetry: Second Edition)
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25 pages, 897 KiB  
Article
Numerical Algorithms for Approximation of Fractional Integrals and Derivatives Based on Quintic Spline Interpolation
by Mariusz Ciesielski
Symmetry 2024, 16(2), 252; https://doi.org/10.3390/sym16020252 - 18 Feb 2024
Cited by 1 | Viewed by 1139
Abstract
Numerical algorithms for calculating the left- and right-sided Riemann–Liouville fractional integrals and the left- and right-sided fractional derivatives in the Caputo sense using spline interpolation techniques are derived. The spline of the fifth degree (the so-called quintic spline) is mainly taken into account, [...] Read more.
Numerical algorithms for calculating the left- and right-sided Riemann–Liouville fractional integrals and the left- and right-sided fractional derivatives in the Caputo sense using spline interpolation techniques are derived. The spline of the fifth degree (the so-called quintic spline) is mainly taken into account, but the linear and cubic splines are also considered to compare the quality of the developed method and numerical calculations. The estimation of errors for the derived approximation algorithms is presented. Examples of the numerical evaluation of the fractional integrals and derivatives are executed using 128-bit floating-point numbers and arithmetic routines. For each derived algorithm, the experimental orders of convergence are calculated. Also, an illustrative computational example showing the action of the considered fractional operators on the symmetric function in the interval is presented. Full article
(This article belongs to the Special Issue Functional Analysis, Fractional Operators and Symmetry/Asymmetry: Second Edition)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

 

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