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Special Issues

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 Metamaterials, Composite Structures, and Lattice Structures
edited by Shengjie Zhao, and Zhaohua Wang
submission deadline 31 Aug 2026 | 1 articles | Viewed by 1642 | Submission Open
Keywords: metamaterials; lattice structures; composite structures; periodic structures; design optimization; computer-aided design; additive manufacturing; computational modeling
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Multi-Objective Optimization
edited by Chaoda Peng
submission deadline 31 Aug 2026 | 1 articles | Viewed by 1229 | Submission Open
Keywords: multi-objective optimization; optimization algorithms; pareto front; evolutionary algorithms; stochastic problems; high-dimensional spaces; artificial intelligence; decision making
(This special issue belongs to the Section Computer)
Stability and Bifurcation in Discrete Dynamical Systems: Application to Population Dynamics
edited by
submission deadline 31 Aug 2026 | 1 articles | Viewed by 1051 | 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)
Symmetry in Fault Detection, Diagnosis, and Prognostics submission deadline 31 Aug 2026 | 1 articles | Viewed by 1051 | Submission Open
Keywords: symmetry in fault detection; symmetry in system degradation; AI-based fault diagnosis; predictive maintenance; signal processing for fault detection; physics-informed machine learning; vibration analysis; industrial diagnostics; sensor fusion; reliability engineering
(This special issue belongs to the Section Engineering and Materials)
Advanced Technologies in Electrical and Electronic Engineering, 4th Edition submission deadline 31 Aug 2026 | 2 articles | Viewed by 825 | Submission Open
Keywords: renewable energy integration; power system symmetric operation; three-phase asymmetry
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry in IoT Security
edited by Yue Zhang and Shan Wang
submission deadline 31 Aug 2026 | Viewed by 637 | Submission Open
Keywords: IoT system; security; symmetric encryption; asymmetric decryption; data privacy
(This special issue belongs to the Section Computer)
Modified Gravity: Exploring Black Holes, Compact Objects, Wormholes, and Beyond
edited by , Daris Samart and Supakchai Ponglertsakul
submission deadline 31 Aug 2026 | Viewed by 548 | Submission Open
Keywords: modified theories of gravity; black holes; compact objects; wormholes
(This special issue belongs to the Section Physics)
Symmetries in Algebraic Combinatorics and Their Applications submission deadline 31 Aug 2026 | 1 articles | Viewed by 484 | Submission Open
Keywords: Cayley graph; binary tree; Dyck path; Christoffel word; integer frieze; integer partition; nilpotent graph; prime graph; polygon triangulation; poset; snake graph; braid representation; Dynkin algebra; cluster algebra; Lie algebra; matrix problem; poset representation; quiver representation; Thompson’ s group
(This special issue belongs to the Section Mathematics)
Quantum Synchronization of Oscillators and Qubits
edited by
submission deadline 31 Aug 2026 | Viewed by 437 | Submission Open
Keywords: synchronization; quantum synchronization; quantum symmetry; superradiance; quantum optics; entanglement
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Wireless Communications and Signal Processing
edited by and Dhanushka Priyankara Kudathanthirige
submission deadline 31 Aug 2026 | Viewed by 319 | Submission Open
Keywords: symmetric and asymmetric wireless networks; MIMO and beamforming optimization; adaptive resource allocation; spectrum sharing and coexistence; machine learning for wireless networks; full-duplex communication; interference management strategies; security and privacy in wireless systems; signal processing for asymmetric channels; heterogeneous network optimization
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Research and Innovation on the Internet of Things
edited by and Ponciano Jorge Escamilla-Ambrosio
submission deadline 31 Aug 2026 | Viewed by 245 | Submission Open
Keywords: network security; mathematical models; symmetric and asymmetric cryptography; mobile and web applications; trust management; cryptanalysis; decentralized technologies
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Image Classification submission deadline 31 Aug 2026 | Viewed by 234 | Submission Open
Keywords: symmetry; image processing; data science; artificial intelligent; biomedical engineering; machine learning; symmetric algorithms; visual data analysis; symmetric patterns; patterns analysis
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Artificial Intelligence with Application
edited by Yoshihiro Maruyama
submission deadline 31 Aug 2026 | Viewed by 224 | Submission Open
Keywords: geometric deep learning; equivariant and invariant learning; representation learning; graph and network symmetries; algebraic and categorical methods in AI; physics-informed and scientific AI; applications of symmetry/asymmetry in real-world systems; symmetry in artificial intelligence; asymmetry in artificial intelligence; symmetry breaking in machine learning
(This special issue belongs to the Section Computer)
Symmetry in Control Systems: Theory, Design, and Application
edited by Yongfeng Lv and
submission deadline 31 Aug 2026 | Viewed by 223 | Submission Open
Keywords: symmetry in control; geometric mechanics; lie groups and algebras; nonlinear control systems; optimal control; adaptive control; networked systems; motion planning and control; hamiltonian systems; distributed control
(This special issue belongs to the Section Engineering and Materials)
Integrable Systems and Their Symmetries: Foundations and Advances
edited by Su-Su Chen and Dan-Yu Yang
submission deadline 31 Aug 2026 | Viewed by 184 | Submission Open
Keywords: integrable system; symmetry in integrable system; nonlinear wave; solitons; breathers; rogue waves; Hirota bilinear method; Darboux transformation; Bä cklund transformation; inverse scattering transform; Lie symmetry method; Painlevé analysis
(This special issue belongs to the Section Mathematics)
Symmetry/Asymmetry Design in Colloidal Systems
edited by and
submission deadline 31 Aug 2026 | Viewed by 183 | Submission Open
Keywords: colloids; interface; symmetry-breaking strategies; nanophase structures; self-organization; out-of-equilibrium behavior; functional materials; dynamic behavior
(This special issue belongs to the Section Physics)
Many-Body Light–Matter Systems in Superconducting Circuit QED
edited by and
submission deadline 31 Aug 2026 | Viewed by 158 | Submission Open
Keywords: circuit QED; many-body quantum simulation; photon-hopping metamaterials; phase transitions; quantum optics; Bose– Hubbard lattices; Rabi– Hubbard lattices; strongly correlated systems
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry in Cosmology and Particle Physics
edited by Lucilla Lanza
submission deadline 31 Aug 2026 | Viewed by 149 | Submission Open
Keywords: gauge symmetry; noether’ s theorem; spontaneous symmetry breaking; standard model; higgs mechanism; Grand Unified Theories (GUTs); isotropy and homogeneity; cosmological symmetry; early universe; fundamental forces
(This special issue belongs to the Section Physics)
Applications Based on Asymmetry/Symmetry in Data Mining and Machine Learning submission deadline 31 Aug 2026 | Viewed by 145 | Submission Open
Keywords: artificial intelligence; machine learning; symmetries; asymmetries; explainable
(This special issue belongs to the Section Computer)
Astrophysical Neutrinos in the Multi-Messenger Era and Their Broken Symmetries
edited by
submission deadline 31 Aug 2026 | Viewed by 143 | Submission Open
Keywords: neutrino; neutrino astronomy; multi-messenger; neutrino oscillation; neutrino physics; neutrino mass; sterile neutrino; right-handed neutrino; Glashow resonance; weak interaction broken symmetries
(This special issue belongs to the Section Physics)
Symmetries in Differential Equations and Application—3rd Edition
edited by
submission deadline 31 Aug 2026 | Viewed by 125 | Submission Open
Keywords: differential equation; symmetry; pseudo-differential operator; numerical analysis; approximation; a priori estimates; stability; asymptotic properties; numerical verification method; dynamical systems; quantum calculus; special functions
(This special issue belongs to the Section Mathematics)
Symmetry-Aware Machine Learning and Optimization for Innovative Technologies
edited by El Arbi Abdellaoui Alaoui, and Mohamed Khalifa Boutahir
submission deadline 31 Aug 2026 | Viewed by 124 | Submission Open
Keywords: data mining; machine learning; symmetries; optimization; explainable AI; deep learning; internet of things; smart cities
(This special issue belongs to the Section Computer)
Symmetry in Multiphase Flow Modeling
edited by and
submission deadline 31 Aug 2026 | Viewed by 118 | Submission Open
Keywords: gas– liquid two-phase flow; liquid– liquid two-phase flow; gas– liquid-solid multiphase flow; CFD; DEM-CFD; artificial intelligence algorithm; application in material processing
(This special issue belongs to the Section Physics)
Symmetry in Robotics and Aerial Systems: Theory, Learning and Applications submission deadline 31 Aug 2026 | Viewed by 115 | Submission Open
Keywords: symmetry and asymmetry; equivariance and invariance; geometric mechanics; model predictive control (MPC); aerial robotics (UAV/UAS); swarm robotics and formation control; SLAM and visual– inertial localization; geometric deep learning; optimization-based control; cooperative manipulation and payload transport
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry in Railroad and Highway Engineering submission deadline 31 Aug 2026 | Viewed by 110 | Submission Open
Keywords: materials and structure design; mechanical simulation and analysis; automated construction; smart sensing and monitoring; performance evaluation; AI-empowered maintenance and operation; traffic operation and management
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Advances in Inductively Coupled Plasma Mass Spectrometry: Applications in Health, Nutrition, and Environmental Research
edited by Héctor Hernández Mendoza
submission deadline 31 Aug 2026 | Viewed by 101 | Submission Open
Keywords: symmetry– asymmetry; inductively coupled plasma mass spectrometry (ICP-MS); trace elements; human health; nutrition; environmental monitoring; toxic metals; micronutrients; multi-elemental analysis; analytical chemistry
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Symmetry in Digital Signal Processing: Toward Smart Embedded Applications submission deadline 31 Aug 2026 | Viewed by 100 | Submission Open
Keywords: embedded signal processing; machine learning in embedded systems; real-time data acquisition; biomedical signal processing; time– frequency analysis; environmental monitoring; sustainability applications; precision agriculture; seismic signal processing; autonomous systems
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Design and Control of Robotic Systems
edited by and
submission deadline 31 Aug 2026 | Viewed by 93 | Submission Open
Keywords: symmetric and asymmetric robotic design; robotics control and automation; robust and adaptive control; fault-tolerant control systems; energy-efficient control algorithms; nonlinear dynamics in robotic systems; applications in aerial; space; maritime; and micro-robotics industries
(This special issue belongs to the Section Engineering and Materials)
Application of AI in Symmetry/Asymmetry Scenarios
edited by and
submission deadline 31 Aug 2026 | Viewed by 91 | Submission Open
Keywords: AI; symmetry; asymmetry; application scenarios
(This special issue belongs to the Section Computer)
Nonlinear Differential and Integral Equations and Their Infinite Systems—2nd Edition submission deadline 31 Aug 2026 | Viewed by 77 | Submission Open
Keywords: nonlinear differential equation; nonlinear integral equation; stability of solutions; asymptotic stability of solutions; asymptotic behaviour of solutions at infinity; infinite system of nonlinear differential equations; infinite system of nonlinear integral equations; sequence Banach space; compactness conditions
(This special issue belongs to the Section Mathematics)
Symmetries and Quantum Chromodynamics
edited by
submission deadline 31 Aug 2026 | Viewed by 73 | Submission Open
Keywords: hadrons; structure functions; TMDs; symmetry in QCD; nonperturbative QCD
(This special issue belongs to the Section Physics)
Symmetry in Integrable Systems: Topics and Advances (Second Edition)
edited by
submission deadline 31 Aug 2026 | Viewed by 73 | Submission Open
Keywords: symmetries; conservation laws; solitons; integrable systems; breathers; rogue waves; hirota bilinear method; darboux transformation; other miscellaneous applications of nonlinear integrable systems
(This special issue belongs to the Section Mathematics)
Symmetry Applications in Robotics: Current Advances submission deadline 31 Aug 2026 | Viewed by 72 | Submission Open
Keywords: symmetry in robotics; robot kinematics and dynamics; geometric control and lie group methods; motion planning and trajectory optimization; parallel and hybrid manipulators; swarm and multi-robot systems; topological and group-theoretic approaches in robotics; symmetry in perception and sensor design; legged locomotion and dynamic symmetry; systematic and symmetry-based robot design; machine learning and data-driven symmetry discovery
(This special issue belongs to the Section Computer)
Symmetry in Soft and Colloidal Materials
edited by Ho Yin Tse
submission deadline 31 Aug 2026 | Viewed by 64 | Submission Open
Keywords: soft matter; colloids; symmetry breaking; self-assembly; liquid crystals; chirality; mesoscopic structure; pattern formation
(This special issue belongs to the Section Engineering and Materials)
Symmetries in Mechatronics and Robotics
edited by , and Wei Tang
submission deadline 31 Aug 2026 | Viewed by 60 | Submission Open
Keywords: symmetries relations in robotics; symmetry mechatronic system design; robotic kinematics and dynamics; symmetry-based control methods
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in RF Communications Engineering
edited by
submission deadline 31 Aug 2026 | Viewed by 42 | Submission Open
Keywords: RF communications engineering; symmetry in RF systems; reconfigurable intelligent surfaces (RISs); high-frequency MIMO arrays; machine learning for RF design; millimetre-wave propagation; metamaterials and metasurfaces; hybrid RF– optical communication
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Functional Materials Science
edited by Jindarat Ekprasert
submission deadline 31 Aug 2026 | Viewed by 33 | Submission Open
Keywords: biomineralization; bacteria; fungi; microalgae; biomimetic; self-healing; self-cleaning; biocompatibility
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry in Data Science: Blockchain, IoT and Security submission deadline 31 Aug 2026 | Viewed by 33 | Submission Open
Keywords: symmetry; asymmetry; blockchain; internet of things (IoT); data security; cryptography; consensus; privacy; distributed systems; cybersecurity
Symmetric and Asymmetric Research in Human–Computer Interaction
edited by and Janio Jadán-Guerrero
submission deadline 15 Sep 2026 | Viewed by 132 | Submission Open
Keywords: human– computer interaction; symmetry; asymmetry; interaction design; user experience; artificial intelligence; adaptive systems; extended reality; cognition and perception
(This special issue belongs to the Section Computer)
Symmetry in Digitalisation of Distribution Power System
edited by Wei Qiu, Mengxiang Liu and Suhan Zhang
submission deadline 30 Sep 2026 | 6 articles | Viewed by 5344 | Submission Open
Keywords: smart grids; distribution power systems; energy systems; modern power systems; cyber-physical power systems
(This special issue belongs to the Section Engineering and Materials)
Mathematical Modeling of Symmetry in Collective Biological Dynamics
edited by
submission deadline 30 Sep 2026 | 3 articles | Viewed by 5146 | Submission Open
Keywords: collective behavior; mathematical modeling; biomathematics; emergent properties; symmetry analysis
(This special issue belongs to the Section Mathematics)
Selected Papers: Symmetry 2025—The Fifth Edition of the International Conference on Symmetry
edited by , Changzheng Qu and
submission deadline 30 Sep 2026 | 4 articles | Viewed by 5042 | Submission Open
Keywords: physics; mathematics; chemistry; engineering; computer science; symmetry applications
Gravitational Physics, Black Holes and Space–Time Symmetry
edited by Yassine Sekhmani and
submission deadline 30 Sep 2026 | 2 articles | Viewed by 2542 | Submission Open
Keywords: black hole; neutron star; white dwarf; wormholes; general relativity solutions; alternative gravity theory solutions; quantum gravity theory solutions; space– time geometries and symmetries
(This special issue belongs to the Section Physics)
Scheduling, Planning, Decision and Games in Intelligent Dynamic Robotics
edited by , Zhiguo Shi, Yulian Jiang and
submission deadline 30 Sep 2026 | 2 articles | Viewed by 2430 | Submission Open
Keywords: symmetric robotics; sensing and control; information fusion; data analysis; Bayesian optimization; stochastic operations; game theory; reinforcement learning; neural networks; task allocation; trajectory planning; swarm intelligence; multi-agent system; ground-based mobile robots; unmanned aerial vehicles; flying robots; space robots; submarine robots; deep space exploration vehicles; navigation; guidance and control
(This special issue belongs to the Section Computer)
Applications of Symmetry Three-Phase Electrical Power Systems submission deadline 30 Sep 2026 | 3 articles | Viewed by 2137 | Submission Open
Keywords: overvoltage and short-current protections; transient analysis; data cybersecurity; machine learning; deep learning; metaheuristics
(This special issue belongs to the Section Engineering and Materials)
Topics in Nanocomposites and Magnetic Materials: Symmetric/Asymmetric Applications
edited by Mohammed Al Bahri and Fatma Al Ma'Mari
submission deadline 30 Sep 2026 | 1 articles | Viewed by 792 | Submission Open
Keywords: nanocomposites; magnetic materials; symmetry; asymmetry; spintronics; magnetic storage; energy storage; synthesis techniques; properties tuning; functional applications
(This special issue belongs to the Section Physics)
The Role of Symmetry in Internet of Things (IoT) Applications
edited by Prawit Chumchu and Timothy T. Adeliyi
submission deadline 30 Sep 2026 | Viewed by 599 | Submission Open
Keywords: internet of things (IoT); artificial intelligence of things (AIoT); symmetry in IoT systems; IoT security and cryptography; industrial IoT (IIoT); smart cities and cyber– physical systems; symmetry in resource management; green IoT and energy efficiency
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Intelligent Transportation System
edited by , Bingyan Cui and
submission deadline 30 Sep 2026 | 1 articles | Viewed by 525 | Submission Open
Keywords: intelligent transportation systems (ITSs); symmetry and asymmetry; artificial intelligence and big data; connected and autonomous vehicles (CAVs); transportation network modeling; symmetry breaking in optimization; digital twin; infrastructure resilience; traffic flow prediction and control; multimodal transportation systems
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Autonomous Robotics submission deadline 30 Sep 2026 | Viewed by 300 | Submission Open
Keywords: symmetry in robotics; asymmetry in autonomous systems; robotic locomotion and manipulation; motion planning algorithms; sensor placement optimization; perception of autonomous robots; control strategies for robotics; machine learning in robotics; human– robot interaction; adaptive robotic design
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Computer Vision and Machine Learning
edited by and
submission deadline 30 Sep 2026 | Viewed by 216 | Submission Open
Keywords: computer version; machine learning; deep learning; defect detection; anomaly detection; symmetry-based data augmentation; industrial application
(This special issue belongs to the Section Computer)
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