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Symmetry publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Symmetry in the Dark: Unification of Dark Matter and Dark Energy

edited by Fotios Anagnostopoulos

submission deadline 15 Sep 2025 | Viewed by 302 | Submission Open

Keywords: modified gravity; dark matter; dark energy; interacting dark energy (DE); clustering dark energy (DE); galaxy rotation curves; large-scale structure; gravitational waves; dark energy/dark matter (DE/DM) unification

(This special issue belongs to the Section Physics)

Symmetry in Mechanical Engineering: Properties and Applications

edited by

Yunqing Tang

, Kun Xu and

Bing Yang

submission deadline 30 Sep 2025 | 11 articles | Viewed by 19906 | Submission Open

Keywords: mechanical engineering; symmetric structure; asymmetric structure; mechanical design; machining; MEMS; structural reliability; thermal management; mass transfer; topology optimization

(This special issue belongs to the Section Engineering and Materials)

Aspects of Particle Physics and High Energy Physics- Dedicated to Zhengdao Li's 95 Anniversary

edited by

Tomohiro Inagaki

Alberto Ruiz-Jimeno

and

Olga Kodolova

submission deadline 30 Sep 2025 | 8 articles | Viewed by 14807 | Submission Open

(This special issue belongs to the Section Physics)

Symmetries and Anomalies in Flavour Physics

edited by

Stefania Ricciardi

, Thomas Blake and Farvah Nazila Mahmoudi

submission deadline 30 Sep 2025 | 8 articles | Viewed by 14542 | Submission Open

Keywords: flavor physics; physics beyond the standard model; anomalies; lepton flavor universality; lepto-quarks; Z’

(This special issue belongs to the Section Physics)

Novel Approaches for Asymmetric Synthesis

edited by

Veroniki Peter Vidali

Marina Sagnou

and

Gerasimos Rassias

submission deadline 30 Sep 2025 | 3 articles | Viewed by 13346 | Submission Open

Keywords: Catalysts for asymmetric synthesis; New chiral sources with applications in asymmetric synthesis; Auxiliaries for induction of chirality; Enzymes used in asymmetric approaches; Green reagents for applications in asymmetric synthetic methods; Asymmetric synthesis of natural products or analogues; Applications of asymmetric synthesis in medicine; agrochemical; nanotechnology; and others

(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)

Advanced Technologies in Electrical and Electronic Engineering, 3rd Edition

edited by

Kejun Li

Yongliang Liang

and

Zhijie Liu

submission deadline 30 Sep 2025 | 7 articles | Viewed by 12247 | Submission Open

Keywords: Asymmetrical Fault Characteristics Analysis; Three-phase imbalance analysis

(This special issue belongs to the Section Engineering and Materials)

Symmetry Applied in Biometrics Technology

edited by

Jules-Raymond Tapamo

submission deadline 30 Sep 2025 | 2 articles | Viewed by 9609 | Submission Open

Keywords: biometrics; identification; symmetry; pattern recognition; soft biometrics; safety; security

(This special issue belongs to the Section Computer)

Symmetry and Asymmetry in Information Security and Network Security

edited by Bingwen Feng

submission deadline 30 Sep 2025 | 6 articles | Viewed by 9372 | Submission Open

Keywords: network security; data hiding; information security

(This special issue belongs to the Section Computer)

Symmetry in the Soliton Theory

edited by

Baojian Hong

, Dianchen Lu,

Yusuf Gürefe

and

Naila Nasreen

submission deadline 30 Sep 2025 | 4 articles | Viewed by 8891 | Submission Open

Keywords: soliton; solitary waves; dynamical systems theory; bifurcation analysis; exact solutions; approximate solutions; numerical methods; fractional partial differential equations; fractional calculus; Darboux transformation; Bä cklund transformation; homotopy analysis method; homotopy perturbation method; lie symmetry; laplace transform

(This special issue belongs to the Section Physics)

Symmetry in Functional Equations: Methods, Applications and Mathematical Models

edited by

Alexandra Galhano

Omid Nikan

and

Zakieh Avazzadeh

submission deadline 30 Sep 2025 | 5 articles | Viewed by 8547 | Submission Open

Keywords: mathematical modelling; numerical methods; random differential equations; optimization problems; engineering applications

(This special issue belongs to the Section Mathematics)

Symmetry, Asymmetry and Nonlinearity in Geomechanics

edited by

Mingdong Wei

, Peng Feng,

Hongbo Du

and Weigang Shen

submission deadline 30 Sep 2025 | 6 articles | Viewed by 6693 | Submission Open

(This special issue belongs to the Section Engineering and Materials)

Probability and Statistics Theory in Symmetry and Application from Machine Learning to Biomedical Data

edited by

Youngsoo Seol

Do-Young Kang

and

Sangjin Kim

submission deadline 30 Sep 2025 | 5 articles | Viewed by 6571 | Submission Open

Keywords: limit theorems; probability and statistics; stochastic processes and its applications

(This special issue belongs to the Section Mathematics)

Symmetry in High Voltage and Insulation Technology

edited by

Li Zhang

Liang Zou

and

Ying Sun

submission deadline 30 Sep 2025 | 4 articles | Viewed by 6292 | Submission Open

Keywords: environmentally friendly insulation materials; dielectric insulation; pulse power and discharge plasma; overvoltage suppression; high-voltage power equipment; electromagnetic compatibility; plasma diagnostic techniques; interaction between plasma dielectric materials

(This special issue belongs to the Section Engineering and Materials)

New Advances in Symmetric Cryptography

edited by Xiaoyang Dong

submission deadline 30 Sep 2025 | 4 articles | Viewed by 6224 | Submission Open

Keywords: block cipher; stream cipher; hash function; message authentication codes; authenticated encryption; cryptanalysis

(This special issue belongs to the Section Computer)

Discussion of Properties and Applications of Integral Transform

edited by

Hwajoon Kim

submission deadline 30 Sep 2025 | 5 articles | Viewed by 5580 | Submission Open

Keywords: radon transform; wavelet and curvelet transforms; generalized integral transforms; Fourier transform and its applications; application in AI; hypercomplex generalization of integral transforms; kernel theory; application in engineering; convolution theory; integral equations

(This special issue belongs to the Section Mathematics)

Symmetry and Graph Theory, 2nd Edition

edited by

Abel Cabrera Martínez

and

Alejandro Estrada-Moreno

submission deadline 30 Sep 2025 | 7 articles | Viewed by 5376 | Submission Open

Keywords: metric dimension of graphs; topological indices; graph coloring; domination in graphs; Ramsey number; polynomials in graphs

(This special issue belongs to the Section Mathematics)

Symmetry Applications in Uncertain Differential Equations

edited by Anshui Li, Waichon Lio and Baoding Liu

submission deadline 30 Sep 2025 | 5 articles | Viewed by 4465 | Submission Open

Keywords: uncertain differential equation; uncertain statistics; uncertainty theory; uncertain finance; symmetry; uncertain process; uncertain renewal process; uncertain calculus

(This special issue belongs to the Section Mathematics)

Symmetries and Symmetry-Breaking in Data Security

edited by Na Ren and

Weitong Chen

submission deadline 30 Sep 2025 | 3 articles | Viewed by 4005 | Submission Open

Keywords: data security; digital watermark; data encryption; data transactions; privacy-preserving computation; attack and defense

(This special issue belongs to the Section Computer)

Applications Based on Symmetry/Asymmetry in Functional Data Analysis

edited by Nengxiang Ling

submission deadline 30 Sep 2025 | 2 articles | Viewed by 3758 | Submission Open

(This special issue belongs to the Section Mathematics)

Nonlinear Analysis and Applications, Geometry of Banach Spaces and Symmetry II

edited by

Eulalia Martínez Molada

submission deadline 30 Sep 2025 | 2 articles | Viewed by 3624 | Submission Open

Keywords: fixed-point theory and applications; best proximity point theory and applications; nonlinear operator theory and applications; generalized contractive mappings; equilibrium problems and applications; variational inequality problems and applications; optimization problems and applications; game theory and applications; numerical algorithms for nonlinear problems; well-posedness in fixed-point theory; stability of functional equations related to fixed-point theory; differential and integral equations; geometry of banach spaces; symmetry

(This special issue belongs to the Section Mathematics)

Advances in Image Processing with Symmetry/Asymmetry

edited by

Yu Zhang

and Shunli Zhang

submission deadline 30 Sep 2025 | 3 articles | Viewed by 3596 | Submission Open

Keywords: Image processing; symmetry; asymmetry; computer vision; feature extraction; pattern recognition; deep learning; medical imaging; remote sensing

(This special issue belongs to the Section Computer)

Symmetries of Difference Equations, Special Functions and Orthogonal Polynomials: 3rd Edition

edited by

Serkan Araci

submission deadline 30 Sep 2025 | 7 articles | Viewed by 3531 | Submission Open

Keywords: orthogonal polynomials; difference equations; symmetries in special functions; symmetries in orthogonal polynomials; symmetries of difference equations; the analytical properties and applications of special functions; inequalities for special functions; the integration of the products of special functions; the properties of ordinary and general families of special polynomials; operational techniques involving special polynomials; classes of mixed special polynomials and their properties; other miscellaneous applications of special functions and special polynomials

(This special issue belongs to the Section Mathematics)

Mathematical Modeling of Symmetry in Collective Biological Dynamics

edited by

Linjie Liu

submission deadline 30 Sep 2025 | 2 articles | Viewed by 3406 | Submission Open

Keywords: collective behavior; mathematical modeling; biomathematics; emergent properties; symmetry analysis

(This special issue belongs to the Section Mathematics)

Symmetry in Optimal Control and Applications

edited by Xin Chen, Liu He and

Bo Li

submission deadline 30 Sep 2025 | 3 articles | Viewed by 3252 | Submission Open

Keywords: optimal control; robust control; uncertainty theory; computational methods; applications in robotics; fractional systems; biological systems; economic systems; energy optimization; symmetry in financial models and economic systems

(This special issue belongs to the Section Mathematics)

Symmetry and Asymmetry Study in Graph Theory

edited by

Mujiangshan Wang

submission deadline 30 Sep 2025 | 3 articles | Viewed by 3172 | Submission Open

Keywords: symmetry in graph theory; fault diagnosis of nodes or links in interconnected networks; combinatorial algorithms; graph neural networks (GNNs); integration of graph properties with uncertainty; restricted connectivity and diagnosability of multiprocessor systems; algorithmic complexity in graph theory

(This special issue belongs to the Section Computer)

The Benefits That Physics Derives from the Concept of Symmetry

edited by

Luigi Cimmino

and

Carlos L. Benavides-Riveros

submission deadline 30 Sep 2025 | 3 articles | Viewed by 3103 | Submission Open

Keywords: symmetric process; symmetry breaking; conservation law; measurement process; phenomenological model

(This special issue belongs to the Section Physics)

Quantum Gravity and Cosmology: Exploring the Astroparticle Interface

edited by

Iver H. Brevik

Oem Trivedi

and

Maxim Y. Khlopov

submission deadline 30 Sep 2025 | 3 articles | Viewed by 2437 | Submission Open

Keywords: quantum gravity theories; very early-universe physics; inflationary cosmology; primordial non-Gaussianity; primordial black holes; cosmological phase transitions; modified gravity; dark matter physics; dark energy; BSM physics and cosmology; cosmic tensions (H0 and beyond); black hole physics; machine learning methods in cosmology

(This special issue belongs to the Section Physics)

Symmetry and Asymmetry in Multivariate Statistics and Data Science, Second Edition

edited by

Nicola Maria Rinaldo Loperfido

submission deadline 30 Sep 2025 | 2 articles | Viewed by 2151 | Submission Open

Keywords: asymmetry; cumulants; moments; multilinear algebra; skewness; symmetry; tensor

(This special issue belongs to the Section Mathematics)

Symmetry and Asymmetry in Cyber Security, IoTs and Privacy

edited by Rodrigo Sanches Miani and

Bruno Bogaz Zarpelão

submission deadline 30 Sep 2025 | 1 articles | Viewed by 2131 | Submission Open

Keywords: cryptosystems; cryptographic protocols; communication and privacy; Internet of Things; attack– defense asymmetry; machine learning and cybersecurity; legal and ethical aspects of cybersecurity; cybersecurity policies

(This special issue belongs to the Section Computer)

Nature and Origin of Dark Matter and Dark Energy, 2nd Edition

edited by

Vesselin Gueorguiev

and

Enrique Gaztanaga

submission deadline 30 Sep 2025 | 1 articles | Viewed by 1972 | Submission Open

Keywords: dark matter; dark energy; cosmology; galaxies; CMB; universe; expansion; cosmological constant

(This special issue belongs to the Section Physics)

Advances in Machine Learning with Symmetry/Asymmetry in Transportation

edited by

Gen Li

and Yangsheng Jiang

submission deadline 30 Sep 2025 | 2 articles | Viewed by 1910 | Submission Open

Keywords: traffic safety algorithms; symmetry design; dynamic modeling; parameter identification; real-time accident prediction; risk assessment; environmental perception; decision planning; trajectory tracking control

(This special issue belongs to the Section Computer)

Advances in Symmetry/Asymmetry and Biomedical Engineering

edited by

Yingwei Li

and

Xiaoli Li

submission deadline 30 Sep 2025 | 2 articles | Viewed by 1819 | Submission Open

Keywords: vascular disease; biomarkers; brain science; cognitive neuroscience; neurological dysfunctions; brain functional network connectivity; hyperscanning; motion and rehabilitation

(This special issue belongs to the Section Life Sciences)

Symmetry and Its Applications in Automation and Control Systems

edited by

Jiapeng Liu

submission deadline 30 Sep 2025 | 2 articles | Viewed by 1819 | Submission Open

Keywords: symmetry control; control systems; control theory; symmetry applications; automation control

(This special issue belongs to the Section Engineering and Materials)

Spin Chirality and Molecular Magnetism

edited by Guangchen Li and

Ming Yan

submission deadline 30 Sep 2025 | 1 articles | Viewed by 1583 | Submission Open

Keywords: symmetry relation; spin chirality; molecular magnetism; spin selectivity; spin dynamics; chiral magnetic textures; topological materials

(This special issue belongs to the Section Physics)

Selected Papers from “3rd International Conference: Constructive Mathematical Analysis”

edited by

Tuncer Acar

Ioan Rașa

and Donal O’Regan

submission deadline 30 Sep 2025 | Viewed by 1167 | Submission Open

Keywords: constructive mathematical analysis; operator theory; function analysis; fourier analysis; sampling series; approximation theory; linear positive operators

(This special issue belongs to the Section Mathematics)

Symmetry Aspects in Quantum Computing

edited by

Jorge A. Morales

submission deadline 30 Sep 2025 | 1 articles | Viewed by 905 | Submission Open

Keywords: quantum computing (QC); symmetry theory; Lie algebras and Lie groups; quantum encoding & mapping; quantum circuits; quantum chemistry; molecular physics; spin-adapted calculations; symmetry conservation; symmetry breaking; quantum walk; quantum formalisms; quantum algorithms; quantum computer engineering; symmetry in quantum simulations; quantum information theory

(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)

Symmetry/Asymmetry in Robust Chaos and Chaotification–Theory and Applications

edited by

Marcin Lawnik

Murilo da Silva Baptista

George F. Fragulis

Lazaros Moysis

and

Christos Volos

submission deadline 30 Sep 2025 | Viewed by 596 | Submission Open

Keywords: robust chaos; chaotification; S-unimodal maps; hidden attractors; AI methods in modeling chaotic systems; symmetric features (phase diagrams; equilibria; antimonotonicity); chaos applications; chaos symmetric encryption; machine learning techniques for cryptanalysis of chaotic encryption; chaos path planning; chaos PRBG

Symmetry in Dark Matter and Black Holes

edited by Peng Liu

submission deadline 30 Sep 2025 | Viewed by 530 | Submission Open

Keywords: symmetry; dark matter; black holes; gravity; gravitational waves; black hole imaging; symmetry breaking; cosmology

(This special issue belongs to the Section Physics)

Symmetry in Microwave Energy Applications and Microwave Characterization

edited by Zhe Wu

submission deadline 30 Sep 2025 | 1 articles | Viewed by 409 | Submission Open

Keywords: microwave energy; microwave heating; microwave chemistry; near-field microwave; microwave microscopy; microwave characterization; microwave imaging

(This special issue belongs to the Section Engineering and Materials)

Cyber-Physical Power System and Symmetry Analysis

edited by Huifeng Zhang,

Yushuai Li

and

Fei Teng

submission deadline 30 Sep 2025 | Viewed by 377 | Submission Open

Keywords: symmetry; power systems; renewable energy systems; topology; smart grids; electrical signals

(This special issue belongs to the Section Engineering and Materials)

Symmetries/Asymmetries in Particle Physics

edited by

Evangelos Gazis

submission deadline 30 Sep 2025 | Viewed by 300 | Submission Open

Keywords: particles; standard model; big bang; quark; symmetry

(This special issue belongs to the Section Physics)

Symmetry and Stochasticity in Mathematical Biology and Ecology

edited by

Ilias Elmouki

, Ling Zhong, Abdelilah Jraifi, Aziz Darouichi, Amine Hamdache and Albatoul Khaled

submission deadline 30 Sep 2025 | Viewed by 264 | Submission Open

Keywords: symmetry and randomness in genetics; symmetry and nondeterminism in nature; stochastic dynamical systems in biology and medicine; stochastic dynamical systems in environmental sustainability and bioeconomy; asymmetry and imperfection in biology and ecosystems

(This special issue belongs to the Section Mathematics)

Symmetry in Gravitational Wave Physics

edited by Zhi Wang

submission deadline 30 Sep 2025 | Viewed by 235 | Submission Open

Keywords: gravitational wave; laser interferometer; telescope; inertial sensor

(This special issue belongs to the Section Physics)

Symmetry in Ultracold Gases and Superfluidity

edited by Bo Liu and

Boris Malomed

submission deadline 30 Sep 2025 | Viewed by 216 | Submission Open

Keywords: many-body physics; topological states of matter; superfluidity; ultracold gases; quantum simulation

(This special issue belongs to the Section Physics)

Symmetry in Beam–Plasma Physics

edited by Alessio Del Dotto, Alessandro Curcio and Andrei C. Berceanu

submission deadline 30 Sep 2025 | Viewed by 192 | Submission Open

Keywords: beam (particle or laser)– plasma interaction; plasma wakefield acceleration; inertial fusion; nuclear astrophysics; quantum electrodynamics (QED); beam dynamics in plasma; collective modes; gauge symmetries; plasma-based applications

(This special issue belongs to the Section Physics)

Computational Intelligence and Symmetry

edited by

Yunhe Wang

and Xin Zhang

submission deadline 30 Sep 2025 | Viewed by 136 | Submission Open

Keywords: evolutionary computation; computational intelligence; deep learning; scRNA-seq data; gene expression data; biomarker finding

(This special issue belongs to the Section Computer)

Symmetry/Asymmetry in Quantum Chromodynamics (QCD)

edited by Joao Pacheco B.C. de Melo and George H.S. Yabusaki

submission deadline 30 Sep 2025 | Viewed by 128 | Submission Open

Keywords: quantum chromodynamics (QCD); elementary particle physics; hadron physics; symmetries; quantum field theory

(This special issue belongs to the Section Physics)

Applications of Symmetry/Asymmetry in Structural Dynamics and Structural Health Monitoring

edited by

Cheng Liu

submission deadline 30 Sep 2025 | Viewed by 111 | Submission Open

Keywords: symmetry/asymmetry; structural health monitoring; structural damage detection; structural dynamics; sensor technology; signal processing techniques

(This special issue belongs to the Section Engineering and Materials)

Black Holes in String Theory and Field Theory: Symmetry and Topics

edited by Oscar Gerardo Loaiza-Brito and Miguel Sabido

submission deadline 30 Sep 2025 | Viewed by 97 | Submission Open

Keywords: black holes; string theory; field theory; global symmetries; extra dimensions; quantum gravity; holography; supersymmetry; supergravity

(This special issue belongs to the Section Physics)

Generalized Symmetries and Fractons in Gauge Theories

edited by

Nicola Maggiore

and

Erica Bertolini

submission deadline 30 Oct 2025 | 1 articles | Viewed by 914 | Submission Open

Keywords: symmetries; anomalies; quantum field theory; string theory; fractons; spontaneous symmetry breaking; low-energy effective field theory; quantum phases of matter

(This special issue belongs to the Section Physics)

Displaying special issue 201-250 on page 5 of 11.

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