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Symmetry, Volume 14, Issue 7

July 2022 - 215 articles

Cover Story: This paper provides an overview of a few basic topics in functional analysis, joined together by the notion of convexity and its applications. The references partially illustrate old and recent research in this area and relationships between them. The motivation of this paper consists of pointing out two different main aspects of convexity: convex operators and their properties, and Hahn–Banach type theorems applied to the Moment Problem. Concerning the second aspect, a related optimization problem with infinitely many linear constraints is solved. View this paper
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Articles (215)

  • Article
  • Open Access
3 Citations
1,642 Views
9 Pages

Graded Weakly 2-Absorbing Ideals over Non-Commutative Graded Rings

  • Azzh Saad Alshehry,
  • Jebrel M. Habeb,
  • Rashid Abu-Dawwas and
  • Ahmad Alrawabdeh

19 July 2022

Let G be a group and R be a G-graded ring. In this paper, we present and examine the concept of graded weakly 2-absorbing ideals as in generality of graded weakly prime ideals in a graded ring which is not commutative, and demonstrates that the symme...

  • Article
  • Open Access
3 Citations
2,625 Views
13 Pages

19 July 2022

In spatial econometrics, we usually assume that the spatial dependence structure is known and that all information about it is contained in a spatial weights matrix W. However, in practice, the structure of W is unknown a priori and difficult to obta...

  • Article
  • Open Access
4 Citations
2,616 Views
15 Pages

Joint-Prior-Based Uneven Illumination Image Enhancement for Surface Defect Detection

  • Yuanhong Qiu,
  • Shuanlong Niu,
  • Tongzhi Niu,
  • Weifeng Li and
  • Bin Li

19 July 2022

Images in real surface defect detection scenes often suffer from uneven illumination. Retinex-based image enhancement methods can effectively eliminate the interference caused by uneven illumination and improve the visual quality of such images. Howe...

  • Article
  • Open Access
5 Citations
2,163 Views
11 Pages

A Study on Certain Subclasses of Analytic Functions Involving the Jackson q-Difference Operator

  • Abdel Moneim Y. Lashin,
  • Abeer O. Badghaish and
  • Badriah Maeed Algethami

19 July 2022

We introduce two new subclasses of analytic functions in the open symmetric unit disc using a linear operator associated with the q-binomial theorem. In addition, we discuss inclusion relations and properties preserving integral operators for functio...

  • Article
  • Open Access
1 Citations
2,136 Views
29 Pages

18 July 2022

The automated manufacturing systems (AMS) can be regarded as a resource allocation system which can be abstracted as discrete event systems (DES) for analysis. Once an effective computational method is put forward to the DES, the corresponding real A...

  • Article
  • Open Access
2 Citations
2,407 Views
12 Pages

18 July 2022

Learning the conditional probability table (CPT) parameters of Bayesian networks (BNs) is a key challenge in real-world decision support applications, especially when there are limited data available. The traditional approach to this challenge is int...

  • Article
  • Open Access
8 Citations
2,138 Views
8 Pages

18 July 2022

In this paper, to study the Sharma–Tasso–Olver–Burgers equation, we focus on the geometric properties and the exact traveling wave solutions. The corresponding traveling system is a cubic oscillator with damping, and it has time-dep...

  • Article
  • Open Access
3 Citations
2,943 Views
19 Pages

18 July 2022

In this research, a simulation system based on a physical model and its lighting feature is developed to perform three-dimensional model creation, and graphics software is used to randomly generate a simulated surface with defects, which also coopera...

  • Feature Paper
  • Review
  • Open Access
3,955 Views
29 Pages

18 July 2022

The discovery of the Higgs boson confirms the existence of a scalar sector of the standard model, responsible for electroweak symmetry breaking, but the nature and properties of the potential at the origin of this mechanism are still unknown. By stud...

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Symmetry - ISSN 2073-8994