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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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Advances in Control Systems and Symmetry/Asymmetry

edited by Yiming Wu

submission deadline 31 Aug 2025 | 1 articles | Viewed by 2048 | Submission Open

Keywords: symmetric/asymmetric control constraints; intelligent optimal control; neural-network-based control; event-triggered control; adaptive iterative learning control; nonlinear tracking control; robust control; stochastic system control

(This special issue belongs to the Section Computer)

Symmetry in Bearing Modeling and Intelligent Fault Diagnosis

edited by

Jiantao Lu

Xingxing Jiang

and Jie Liu

submission deadline 31 Aug 2025 | 1 articles | Viewed by 1788 | Submission Open

Keywords: symmetry in bearing modeling; intelligent fault diagnosis; data-driven fault diagnosis method; interpretable intelligent diagnosis; transfer learning; active learning

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

The Symmetry of QCD Matter and Functional QCD Approaches

edited by Fei Gao and Yu-xin Liu

submission deadline 31 Aug 2025 | Viewed by 1686 | Submission Open

Keywords: QCD phase transition; ; hadron spectrum and inside structure; ; dynamical Chiral symmetry breaking; ; deconfinement; ; functional QCD approaches.

(This special issue belongs to the Section Physics)

Symmetry and Asymmetry in Data Analysis

edited by Song Deng, Xiong Fu and

Di Wu

submission deadline 31 Aug 2025 | 2 articles | Viewed by 1390 | Submission Open

Keywords: data mining; machine learning; artificial intelligence; data analysis for industrial information; outlier identification; data distribution

(This special issue belongs to the Section Computer)

Symmetry/Asymmetry in Computer Vision and Pattern Recognition for Sensing Smart Cities

edited by

Hugo Jiménez Hernández

Jorge Domingo Mendiola-Santibáñez

and Ana Marcela Herrera-Navarro

submission deadline 31 Aug 2025 | 1 articles | Viewed by 1086 | Submission Open

Keywords: computer vision systems; pattern recognition; symmetry and asymmetry; smart cities; video understanding; video analytics; smart sensing

(This special issue belongs to the Section Computer)

Individual Differences in Behavioral and Neural Lateralization, 2nd Edition

edited by

Anita D'Anselmo

, Elena Mussini and

Daniele Marzoli

submission deadline 31 Aug 2025 | 2 articles | Viewed by 1032 | Submission Open

Keywords: behavioral lateralization; neural lateralization; individual differences; mental disorders; atypical lateralization; handedness; motor asymmetries; perceptual and attentional asymmetries; sex; age; personality; sexual orientation; cognitive performance; genetics

(This special issue belongs to the Section Life Sciences)

Symmetry in Marine Hydrodynamics: Applications to Ocean Engineering

edited by

Sarat Chandra Mohapatra

and

Mike Meylan

submission deadline 31 Aug 2025 | 1 articles | Viewed by 811 | Submission Open

Keywords: hydrodynamics; marine structures; hydroelastic response; dynamics of moored platforms; interconnected structures; wave forces; marine aquaculture; effect of seabed topography; nonlinear dynamics; wave energy converter

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

Symmetry in Optimization Algorithms and Applications

edited by

Adrián González

submission deadline 31 Aug 2025 | 1 articles | Viewed by 659 | Submission Open

Keywords: symmetry; optimization algorithms; problem simplification; search space reduction; algorithm efficiency; symmetry breaking; mathematical programming; combinatorial optimization; convergence acceleration

(This special issue belongs to the Section Mathematics)

Symmetry Applied in Mathematical Modeling and Computational Methods

edited by

Luis Acedo

submission deadline 31 Aug 2025 | Viewed by 498 | Submission Open

Keywords: neural networks; symplectic methods; optimal control theory; symmetries in mathematical models; gauge theories; symmetry breaking models

(This special issue belongs to the Section Mathematics)

Developments in Mechanical Engineering and Symmetry

edited by Fuqiang Chen and

Bo Hu

submission deadline 31 Aug 2025 | Viewed by 413 | Submission Open

Keywords: symmetry analysis; aerodynamic; acoustic; flow control; fluid dynamics; optimal design; computational fluid dynamics; structural control

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

Symmetry-Based Properties in Two-Dimensional Materials

edited by

Sake Wang

Minglei Sun

and

Nguyen Tuan Hung

submission deadline 31 Aug 2025 | Viewed by 383 | Submission Open

Keywords: two-dimensional materials; time-reversal symmetry; inversion symmetry; mirror symmetry; topological states; optical properties; mechanical properties

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

Quantum Technologies in Computing, Communication, Sensing and Imaging

edited by

Aleksey Kozikov

submission deadline 31 Aug 2025 | Viewed by 362 | Submission Open

Keywords: quantum computing; quantum communication; quantum sensing; quantum imaging; quantum networks; quantum internet; superposition; entanglement; single photons; single electrons; single spins; trapped ions and atoms; qubits; qudits; simulations; cryptography; quantum key distribution

(This special issue belongs to the Section Physics)

Symmetry or Asymmetry in Signal/Image Processing, Pattern Recognition, and Microwave/Millimeter-Wave Technologies

edited by

Baolong Wu

and Yiming Yu

submission deadline 31 Aug 2025 | Viewed by 343 | Submission Open

Keywords: signal processing; image processing; pattern recognition; machine learning; microwave/millimeter-wave technologies

(This special issue belongs to the Section Computer)

Quantum Synchronization of Oscillators and Qubits

edited by

Giovanni Modanese

submission deadline 31 Aug 2025 | Viewed by 294 | Submission Open

Keywords: synchronization; quantum synchronization; quantum symmetry; superradiance; quantum optics; entanglement

(This special issue belongs to the Section Physics)

Symmetry and Asymmetry in Object Detection, Object Tracking, and Behaviour Understanding

edited by Mohamed Naiel

submission deadline 31 Aug 2025 | Viewed by 268 | Submission Open

Keywords: object detection; pose estimation; multi-object tracking; object tracking; behaviour recognition; action recognition; activity recognition

(This special issue belongs to the Section Computer)

Modeling and Simulation of Mechanical Systems and Symmetry

edited by Ciro Tordela

submission deadline 31 Aug 2025 | Viewed by 230 | Submission Open

Keywords: dynamics; model-based estimation; model-based control; vehicle dynamics; symmetric dynamic behaviour; multibody

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

Stability and Bifurcation in Discrete Dynamical Systems: Application to Population Dynamics

edited by

Rafael Luís

submission deadline 31 Aug 2025 | Viewed by 221 | Submission Open

Keywords: discrete dynamical systems; difference equations; population dynamics; autonomous models; nonautonomous periodic models; evolutionary models; local stability; global stability; bifurcation

(This special issue belongs to the Section Mathematics)

Exploring Symmetry and Asymmetry in Supply Chain Management: Frameworks, Applications and Innovations for Resilient and Sustainable Systems

edited by

Jabir Arif

and

Fouad Jawab

submission deadline 31 Aug 2025 | Viewed by 202 | Submission Open

Keywords: supply chain symmetry; asymmetry in logistics networks; resilient supply chains; sustainable supply chain systems; mathematical modeling in scm; optimization techniques; risk management in supply chains; collaborative supply chain frameworks; innovation in logistics; resilient supply chain design

(This special issue belongs to the Section Computer)

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

edited by Fotios Anagnostopoulos

submission deadline 15 Sep 2025 | Viewed by 335 | 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 21769 | 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 15743 | 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 15362 | 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 13850 | 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 12865 | Submission Open

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

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

Hidden Dark Sector in High Energy Physics

edited by Theodota Lagouri

submission deadline 30 Sep 2025 | 3 articles | Viewed by 11010 | Submission Open

Keywords: high energy collider physics; LHC; hidden dark sector; exotic Higgs decays; dark photon; dark matter (DM); beyond the Standard Model (BSM)

(This special issue belongs to the Section Physics)

Symmetry Applied in Biometrics Technology

edited by

Jules-Raymond Tapamo

submission deadline 30 Sep 2025 | 2 articles | Viewed by 10490 | 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 10319 | 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 9262 | 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 9027 | 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 7313 | 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 7096 | 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 7022 | 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)

Symmetry and Graph Theory, 2nd Edition

edited by

Abel Cabrera Martínez

and

Alejandro Estrada-Moreno

submission deadline 30 Sep 2025 | 8 articles | Viewed by 6832 | 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)

New Advances in Symmetric Cryptography

edited by Xiaoyang Dong

submission deadline 30 Sep 2025 | 4 articles | Viewed by 6657 | 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 5937 | 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 in Optimal Control and Applications

edited by Xin Chen, Liu He and

Bo Li

submission deadline 30 Sep 2025 | 6 articles | Viewed by 5008 | 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)

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

edited by

Eulalia Martínez Molada

submission deadline 30 Sep 2025 | 4 articles | Viewed by 4974 | 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)

Symmetry Applications in Uncertain Differential Equations

edited by Anshui Li, Waichon Lio and Baoding Liu

submission deadline 30 Sep 2025 | 5 articles | Viewed by 4945 | 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 | 4 articles | Viewed by 4926 | 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)

Symmetry and Asymmetry Study in Graph Theory

edited by

Mujiangshan Wang

submission deadline 30 Sep 2025 | 4 articles | Viewed by 4743 | 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)

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

edited by

Serkan Araci

submission deadline 30 Sep 2025 | 7 articles | Viewed by 4482 | 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)

The Benefits That Physics Derives from the Concept of Symmetry

edited by

Luigi Cimmino

and

Carlos L. Benavides-Riveros

submission deadline 30 Sep 2025 | 4 articles | Viewed by 4388 | Submission Open

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

(This special issue belongs to the Section Physics)

Advances in Image Processing with Symmetry/Asymmetry

edited by

Yu Zhang

and Shunli Zhang

submission deadline 30 Sep 2025 | 4 articles | Viewed by 4371 | 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)

Applications Based on Symmetry/Asymmetry in Functional Data Analysis

edited by Nengxiang Ling

submission deadline 30 Sep 2025 | 2 articles | Viewed by 3948 | Submission Open

(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 3649 | Submission Open

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

(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 | 2 articles | Viewed by 3525 | 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)

Quantum Gravity and Cosmology: Exploring the Astroparticle Interface

edited by

Iver H. Brevik

Oem Trivedi

and

Maxim Y. Khlopov

submission deadline 30 Sep 2025 | 4 articles | Viewed by 3422 | 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)

Advances in Machine Learning with Symmetry/Asymmetry in Transportation

edited by

Gen Li

and Yangsheng Jiang

submission deadline 30 Sep 2025 | 3 articles | Viewed by 2945 | 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)

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 2481 | Submission Open

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

(This special issue belongs to the Section Mathematics)

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

edited by

Vesselin Gueorguiev

and

Enrique Gaztanaga

submission deadline 30 Sep 2025 | 2 articles | Viewed by 2387 | Submission Open

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

(This special issue belongs to the Section Physics)

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