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 and Asymmetry in Intelligent Image Processing: Optimization, Security, and Applications submission deadline 10 Aug 2026 | Viewed by 172 | Submission Open
Keywords: symmetry in image processing; metaheuristics in image processing; image security and authentication; intelligent embedded systems for visual applications; medical image diagnosis and symmetry analysis; optimization techniques for image reconstruction; pattern recognition in symmetric and asymmetric structures
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Data Analysis
edited by Song Deng, Xiong Fu and
submission deadline 15 Aug 2026 | 5 articles | Viewed by 3612 | 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)
Symmetries and Symmetry-Breaking in Data Security, 2nd Edition
edited by Na Ren and
submission deadline 18 Aug 2026 | Viewed by 46 | 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 Nonlinear Control: Theory and Applications
edited by
submission deadline 26 Aug 2026 | Viewed by 87 | Submission Open
Keywords: symmetric control; nonlinear control; fault-tolerant control; event-triggered control; intelligent transportation control; intelligent agriculture robotics
(This special issue belongs to the Section Engineering and Materials)
Computing with Words with Symmetry
edited by and Nadya Regina Galo
submission deadline 30 Aug 2026 | 2 articles | Viewed by 1226 | Submission Open
Keywords: computing with words; fuzzy sets; intuitionistic fuzzy sets; 2-tuple fuzzy linguistic representation; hesitant fuzzy sets; grey systems; rough sets; soft sets; Z-numbers
(This special issue belongs to the Section Computer)
Symmetry or Asymmetry in Machine Learning
edited by
submission deadline 31 Aug 2026 | 4 articles | Viewed by 24074 | Submission Open
Keywords: machine learning; deep learning; computational statistics; artificial intelligence; data mining
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Image Processing and Computer Vision
edited by and Shuo Yang
submission deadline 31 Aug 2026 | 6 articles | Viewed by 8678 | Submission Open
Keywords: image processing; computer vision; pattern recognition; object detection; image segmentation; deep learning; machine learning; convolutional neural network
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Cyber Security, IoTs and Privacy
edited by Rodrigo Sanches Miani and
submission deadline 31 Aug 2026 | 2 articles | Viewed by 7352 | 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)
Applications Based on Symmetry in Applied Cryptography
edited by Yining Liu, , Yong Xie, Pengfei Zhang and Hongyuan Cheng
submission deadline 31 Aug 2026 | 6 articles | Viewed by 5623 | Submission Open
Keywords: advanced symmetric encryption algorithms; symmetric key management; security analysis; cryptographic hash functions; symmetry in blockchains
(This special issue belongs to the Section Computer)
The Symmetry of QCD Matter and Functional QCD Approaches
edited by Fei Gao and Yu-xin Liu
submission deadline 31 Aug 2026 | 1 articles | Viewed by 3556 | 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 Its Application in Fluid Mechanics
edited by Zhenyu Ouyang, Fangyang Yuan and Chundong Xue
submission deadline 31 Aug 2026 | 2 articles | Viewed by 1973 | Submission Open
Keywords: multiphase flows; microfluidics; nanofluidics; droplets; bubbles; active material; soft material; multicomponent; particle manipulation; artificial intelligence
(This special issue belongs to the Section Physics)
Symmetry in Power System Dynamics and Control
edited by , and Abraham Efraim Rodríguez-Mata
submission deadline 31 Aug 2026 | 2 articles | Viewed by 1562 | Submission Open
Keywords: modern power system control and integration; microgrid control; design; and applications; power converter design and control; design and application of advanced and intelligent controls; fault-tolerant control; modern power system operations under fault conditions
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Metamaterials, Composite Structures, and Lattice Structures
edited by Shengjie Zhao, and Zhaohua Wang
submission deadline 31 Aug 2026 | 1 articles | Viewed by 1310 | 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 994 | 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 767 | 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)
Modified Gravity: Exploring Black Holes, Compact Objects, Wormholes, and Beyond
edited by , Daris Samart and Supakchai Ponglertsakul
submission deadline 31 Aug 2026 | Viewed by 503 | Submission Open
Keywords: modified theories of gravity; black holes; compact objects; wormholes
(This special issue belongs to the Section Physics)
Advanced Technologies in Electrical and Electronic Engineering, 4th Edition submission deadline 31 Aug 2026 | 1 articles | Viewed by 441 | Submission Open
Keywords: renewable energy integration; power system symmetric operation; three-phase asymmetry
(This special issue belongs to the Section Engineering and Materials)
Quantum Synchronization of Oscillators and Qubits
edited by
submission deadline 31 Aug 2026 | Viewed by 408 | Submission Open
Keywords: synchronization; quantum synchronization; quantum symmetry; superradiance; quantum optics; entanglement
(This special issue belongs to the Section Physics)
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 216 | 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 in Control Systems: Theory, Design, and Application
edited by Yongfeng Lv and
submission deadline 31 Aug 2026 | Viewed by 186 | 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)
Symmetries in Algebraic Combinatorics and Their Applications submission deadline 31 Aug 2026 | Viewed by 181 | 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)
Symmetry/Asymmetry Design in Colloidal Systems
edited by and
submission deadline 31 Aug 2026 | Viewed by 159 | 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)
Symmetry/Asymmetry in Artificial Intelligence with Application
edited by Yoshihiro Maruyama
submission deadline 31 Aug 2026 | Viewed by 157 | 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)
Many-Body Light–Matter Systems in Superconducting Circuit QED
edited by and
submission deadline 31 Aug 2026 | Viewed by 130 | 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 Image Classification submission deadline 31 Aug 2026 | Viewed by 125 | 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)
Integrable Systems and Their Symmetries: Foundations and Advances
edited by Su-Su Chen and Dan-Yu Yang
submission deadline 31 Aug 2026 | Viewed by 116 | 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)
Applications Based on Asymmetry/Symmetry in Data Mining and Machine Learning submission deadline 31 Aug 2026 | Viewed by 114 | Submission Open
Keywords: artificial intelligence; machine learning; symmetries; asymmetries; explainable
(This special issue belongs to the Section Computer)
Symmetry-Aware Machine Learning and Optimization for Innovative Technologies
edited by El Arbi Abdellaoui Alaoui, Abdelaaziz Hessane and Mohamed Khalifa Boutahir
submission deadline 31 Aug 2026 | Viewed by 100 | 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 89 | 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)
Symmetries in Differential Equations and Application—3rd Edition
edited by
submission deadline 31 Aug 2026 | Viewed by 77 | 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/Asymmetry in Design and Control of Robotic Systems
edited by and
submission deadline 31 Aug 2026 | Viewed by 76 | 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)
Symmetry and Asymmetry in Railroad and Highway Engineering submission deadline 31 Aug 2026 | Viewed by 74 | 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 in Robotics and Aerial Systems: Theory, Learning and Applications submission deadline 31 Aug 2026 | Viewed by 68 | 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 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 65 | 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 and Asymmetry in Cosmology and Particle Physics
edited by Lucilla Lanza
submission deadline 31 Aug 2026 | Viewed by 61 | 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)
Symmetry in Digital Signal Processing: Toward Smart Embedded Applications submission deadline 31 Aug 2026 | Viewed by 46 | 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 in Integrable Systems: Topics and Advances (Second Edition)
edited by
submission deadline 31 Aug 2026 | Viewed by 42 | 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)
Symmetries and Quantum Chromodynamics
edited by
submission deadline 31 Aug 2026 | Viewed by 24 | Submission Open
Keywords: hadrons; structure functions; TMDs; symmetry in QCD; nonperturbative QCD
(This special issue belongs to the Section Physics)
Symmetries in Mechatronics and Robotics
edited by , and Wei Tang
submission deadline 31 Aug 2026 | Viewed by 18 | 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 Applications in Robotics: Current Advances submission deadline 31 Aug 2026 | Viewed by 12 | 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)
Application of AI in Symmetry/Asymmetry Scenarios
edited by and
submission deadline 31 Aug 2026 | Submission Open
Keywords: AI; symmetry; asymmetry; application scenarios
(This special issue belongs to the Section Computer)
Symmetry in Soft and Colloidal Materials
edited by Ho Yin Tse
submission deadline 31 Aug 2026 | 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)
Symmetric and Asymmetric Research in Human–Computer Interaction
edited by and Janio Jadán-Guerrero
submission deadline 15 Sep 2026 | Viewed by 44 | 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)
Mathematical Modeling of Symmetry in Collective Biological Dynamics
edited by
submission deadline 30 Sep 2026 | 3 articles | Viewed by 4747 | Submission Open
Keywords: collective behavior; mathematical modeling; biomathematics; emergent properties; symmetry analysis
(This special issue belongs to the Section Mathematics)
Gravitational Physics, Black Holes and Space–Time Symmetry
edited by Yassine Sekhmani and
submission deadline 30 Sep 2026 | 2 articles | Viewed by 1995 | 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)
Applications of Symmetry Three-Phase Electrical Power Systems submission deadline 30 Sep 2026 | 3 articles | Viewed by 1792 | 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 694 | 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 560 | 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 | Viewed by 247 | 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)
Advances in 2D Materials and Symmetry Breaking in Graphene
edited by and Juan César Flores Araya
submission deadline 30 Sep 2026 | Viewed by 73 | Submission Open
Keywords: graphene and symmetries; symmetry breaking; electronics; termodynamics; optics; 2D band structures
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