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 Optimal Control and Applications
edited by Xin Chen, Liu He and
submission deadline 31 Jul 2027 | 8 articles | Viewed by 18609 | 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 B: Mathematics)
Symmetry in Cryptography and Cybersecurity
edited by , Okuthe P. Kogeda and
submission deadline 31 Jul 2027 | 4 articles | Viewed by 6349 | Submission Open
Keywords: symmetric cryptography; asymmetric cryptography; applied cryptography; cryptographic attacks; network and data security; software security; privacy preservation and secure protocol design; attack–defense asymmetry; cyber threat detection and mitigation; AI security and machine learning in cybersecurity
(This special issue belongs to the Section A: Computer Science)
Symmetry in Power System Dynamics and Control
edited by , and Abraham Efraim Rodríguez-Mata
submission deadline 31 Jul 2027 | 3 articles | Viewed by 5151 | 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 F: Engineering and Materials)
Symmetry/Asymmetry in Wireless Communications for Secure IoT Networks submission deadline 31 Jul 2027 | 1 articles | Viewed by 3058 | Submission Open
Keywords: wireless channel modelling and performance; generative artificial intelligence (GenAI); Internet of Things (IoT); sensor data fusion; security; encryption; security and privacy in wireless systems
(This special issue belongs to the Section A: Computer Science)
Symmetry in Seismic Geotechnical Engineering and Soil Mechanics submission deadline 31 Jul 2027 | 4 articles | Viewed by 2408 | Submission Open
Keywords: local site effects; asymmetric structural response; earthquake-induced liquefaction; soil–structure interaction; landslides; ground motions
(This special issue belongs to the Section F: Engineering and Materials)
Symmetry in Computational Intelligence and Data Science
edited by and Jialiang Xie
submission deadline 31 Jul 2027 | 2 articles | Viewed by 2174 | Submission Open
Keywords: foundational theories; large language models; artificial general intelligence (AGI); explainable AI (XAI); natural language processing (NLP); machine learning; big data structures; uncertainty theories
(This special issue belongs to the Section A: Computer Science)
Symmetry/Asymmetry in Geotechnical Engineering
edited by Guangyao Li, Song Feng and
submission deadline 31 Jul 2027 | 3 articles | Viewed by 1719 | Submission Open
Keywords: geotechnical anisotropy; symmetric and asymmetric loading; constitutive modeling; soil and rock fabric; seismic geotechnics; slope stability; foundation engineering; numerical simulation; experimental mechanics
(This special issue belongs to the Section F: Engineering and Materials)
Symmetry/Asymmetry in Condensed Matter Physics submission deadline 31 Jul 2027 | Viewed by 1366 | Submission Open
Keywords: spontaneous symmetry breaking in quantum materials; topological phases and topological insulators; symmetry-protected states and topological order; charge density waves and structural phase transitions; magnetism, spin textures, and skyrmions; superconductivity and unconventional pairing symmetry; symmetry breaking at interfaces and in low-dimensional systems; emergent phenomena from symmetry reduction in engineered structures; computational and analytical methods for symmetry analysis
(This special issue belongs to the Section C: Physics)
Symmetry and Asymmetry in Control Theory
edited by
submission deadline 31 Jul 2027 | 1 articles | Viewed by 1102 | Submission Open
Keywords: linear and nonlinear control theory; fault diagnosis; fault tolerant control; intelligent decision making; decision and control; motion control; process control
(This special issue belongs to the Section F: Engineering and Materials)
Symmetries in Mechatronics and Robotics
edited by , and Wei Tang
submission deadline 31 Jul 2027 | 1 articles | Viewed by 993 | 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 F: Engineering and Materials)
Symmetry and Asymmetry in Cyber Security
edited by and Yuanyuan Zhang
submission deadline 31 Jul 2027 | 1 articles | Viewed by 929 | Submission Open
Keywords: asymmetric threat modeling; cryptographic primitives; interdisciplinary cybersecurity research
(This special issue belongs to the Section A: Computer Science)
Symmetry in Metaheuristics: Combinatorial Optimization and Data Mining
edited by Christian Daniel Von Lucken Martinez, , Enrique Dávalos and Nery Riquelme-Granada
submission deadline 31 Jul 2027 | Viewed by 811 | Submission Open
Keywords: symmetry; metaheuristics; combinatorial optimization; many-objective optimization; niching; clustering; dimensionality reduction; decomposition; data mining; evolutionary algorithms
(This special issue belongs to the Section B: Mathematics)
Advances of Symmetry/Asymmetry in Fluid Dynamics: Engineering Applications and Marine Hydrodynamics submission deadline 31 Jul 2027 | Viewed by 609 | Submission Open
Keywords: symmetry; fluid dynamics; ship hydrodynamics; computational fluid dynamics; flow–structure interaction; turbulence; vortex dynamics; offshore structures; marine engineering; heat transfer; flow control
(This special issue belongs to the Section F: Engineering and Materials)
Meta-Heuristics for Manufacturing Systems Optimization, 4th Edition
edited by and
submission deadline 31 Jul 2027 | 2 articles | Viewed by 570 | Submission Open
Keywords: meta-heuristic; production scheduling; optimization; manufacturing systems
Geotechnical and Geological Engineering with Symmetry
edited by , I-Hui Chen and Chih-Yu Liu
submission deadline 31 Jul 2027 | Viewed by 539 | Submission Open
Keywords: symmetry and asymmetry in geotechnical engineering; numerical modeling of geomaterials; deep excavations and underground structures; tunnel engineering; slope stability and landslide prevention; groundwater and hydrogeology; geotechnical monitoring and sensing; artificial intelligence and machine learning; geological hazard and risk assessment; soil liquefaction and offshore geotechnics
(This special issue belongs to the Section F: Engineering and Materials)
Symmetry and Its Applications in Mechanical Design submission deadline 31 Jul 2027 | Viewed by 524 | Submission Open
Keywords: mechanical element design; finite element design; structural design; automotive systems design; design and analysis of heat transfer; design and analysis of fluid mechanic; process design
(This special issue belongs to the Section F: Engineering and Materials)
Applications Based on Symmetry/Asymmetry in Optoelectronic Devices
edited by and Yangyang Xie
submission deadline 31 Jul 2027 | 1 articles | Viewed by 406 | Submission Open
Keywords: optoelectronic devices; photoelectric materials; electro-optic properties; electro-optic modulation; photoelectric conversion; illumination; displays; imaging; intelligent optoelectronic system; symmetry and asymmetry
(This special issue belongs to the Section F: Engineering and Materials)
Symmetry and Asymmetry in Biomechanics: Assessment, Modeling and Applications submission deadline 31 Jul 2027 | Viewed by 336 | Submission Open
Keywords: symmetry; asymmetry; movement analysis; clinical biomechanics; rehabilitation; sport biomechanics; injury prevention; musculoskeletal modeling; symmetry indices
(This special issue belongs to the Section E: Life Sciences)
Generative Models for Low-Level Vision: Advances, Applications and Symmetry-Driven Design
edited by Xixi Jia
submission deadline 31 Jul 2027 | Viewed by 322 | Submission Open
Keywords: generative models; low-level vision; diffusion models; image restoration; symmetry prior; super-resolution; image inpainting; computer vision
(This special issue belongs to the Section A: Computer Science)
Symmetric and Asymmetric Encryption in Information Security
edited by and Santitham Prom-On
submission deadline 31 Jul 2027 | Viewed by 157 | Submission Open
Keywords: symmetric encryption; asymmetric cryptography; hybrid cryptography; secure key management; information security
(This special issue belongs to the Section A: Computer Science)
Symmetry and Advanced Control in Power Electronics, Electric Drives and Energy Conversion Systems
edited by , and Roberto Eduardo Quintal Palomo
submission deadline 31 Jul 2027 | Viewed by 128 | Submission Open
Keywords: symmetry; advanced control; robust control; model predictive control; power electronics; electric drives; multiphase machines; renewable energy systems; fault-tolerant control; energy conversion; energy storage systems
(This special issue belongs to the Section F: Engineering and Materials)
Exploiting Symmetry for High-Performance Antennas: Theory, Optimization, and Next-Generation Wireless
edited by Zhentian Wu and Xin Fang
submission deadline 31 Jul 2027 | Viewed by 102 | Submission Open
Keywords: symmetric antennas; metamaterials & metasurfaces; AI-optimized antennas; high-gain miniaturized antennas; IoT antenna applications
(This special issue belongs to the Section A: Computer Science)
Symmetry/Asymmetry with Power Systems
edited by
submission deadline 31 Jul 2027 | Viewed by 99 | Submission Open
Keywords: power system stability and control; renewable energy integration; power quality; source-grid-load-storage coordination; active power balance; power quality
(This special issue belongs to the Section F: Engineering and Materials)
Symmetry and Asymmetry in Nondestructive Testing
edited by and
submission deadline 1 Aug 2027 | 2 articles | Viewed by 1637 | Submission Open
Keywords: symmetry; asymmetry; ultrasonic nondestructive testing; electromagnetic testing; radiography testing; visual testing; infrared thermography; acoustic emission; microwave testing
(This special issue belongs to the Section F: Engineering and Materials)
Symmetry and Asymmetry in Intelligent Image Processing: Optimization, Security, and Applications submission deadline 10 Aug 2027 | 2 articles | Viewed by 1738 | 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 A: Computer Science)
Symmetry and Asymmetry in Decision-Making: Application and Optimization
edited by Jiuying Dong and
submission deadline 30 Aug 2027 | Viewed by 90 | Submission Open
Keywords: multiple criteria decision making; operations research; group decision; expert systems; fuzzy sets and their extensions/generalizations; fuzzy optimization models and methods; aggregation operators; linguistic variables; soft computing; applications of fuzziness in artificial intelligence, economics, education, medicine, engineering
(This special issue belongs to the Section B: Mathematics)
Many-Body Light–Matter Systems in Superconducting Circuit QED
edited by and
submission deadline 31 Aug 2027 | Viewed by 612 | 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 C: Physics)
Symmetry-Aware Machine Learning and Optimization for Innovative Technologies
edited by El Arbi Abdellaoui Alaoui, and Mohamed Khalifa Boutahir
submission deadline 31 Aug 2027 | Viewed by 552 | 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 A: Computer Science)
Symmetry and Asymmetry in Railroad and Highway Engineering submission deadline 31 Aug 2027 | Viewed by 529 | 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 F: Engineering and Materials)
Applications Based on Asymmetry/Symmetry in Data Mining and Machine Learning submission deadline 31 Aug 2027 | Viewed by 436 | Submission Open
Keywords: artificial intelligence; machine learning; symmetries; asymmetries; explainable
(This special issue belongs to the Section A: Computer Science)
Symmetry and Asymmetry in Embedded Systems, 2nd Edition
edited by Cheng Ji, Geng Yuan and
submission deadline 31 Aug 2027 | 1 articles | Viewed by 395 | Submission Open
Keywords: edge computing; symmetric system; cloud–edge converged computing; artificial intelligence; power efficiency; training optimization; privacy-preserving; federated learning; transfer learning; lifelong learning
(This special issue belongs to the Section A: Computer Science)
Symmetry in Rheology and Mechanical Performance of Pavement Materials submission deadline 31 Aug 2027 | Viewed by 220 | Submission Open
Keywords: symmetry and asymmetry; pavement materials; asphalt binders; asphalt mixtures; rheology; viscoelasticity; anisotropy; fatigue and rutting; self-healing; multiscale modeling
(This special issue belongs to the Section F: Engineering and Materials)
Dynamic Modeling for Mechanical Fault Diagnosis
edited by , and Jiawei Xiao
submission deadline 31 Aug 2027 | Viewed by 196 | Submission Open
Keywords: dynamic modelling; nonlinear dynamics; signal processing; condition monitoring; fault feature extraction; deep learning; fault diagnosis
(This special issue belongs to the Section A: Computer Science)
Applications of Symmetry/Asymmetry in Artificial Intelligence and Deep Metaheuristic, 2nd Edition
edited by
submission deadline 31 Aug 2027 | Viewed by 179 | Submission Open
Keywords: symmetry; asymmetry; Internet of Things (IoT); big data; artificial intelligence; metaheuristic
(This special issue belongs to the Section A: Computer Science)
Symmetry/Asymmetry in Image Processing and Computer Vision, 2nd Edition
edited by and Shuo Yang
submission deadline 31 Aug 2027 | Viewed by 128 | Submission Open
Keywords: image processing; computer vision; pattern recognition; object recognition; image segmentation; deep learning; machine learning; convolutional neural network
(This special issue belongs to the Section A: Computer Science)
Symmetry-Aware Artificial Intelligence for Cybersecurity and Smart Healthcare
edited by Yang Xiao, Fengyu Wang and Hao Sun
submission deadline 31 Aug 2027 | Viewed by 110 | Submission Open
Keywords: artificial intelligence; cyberspace security; smart healthcare; symmetry-aware learning; trustworthy AI
(This special issue belongs to the Section A: Computer Science)
Symmetry/Asymmetry in Nonlinear Dynamical Systems, Bifurcation and Chaos
edited by and Yihe Zhang
submission deadline 31 Aug 2027 | Viewed by 79 | Submission Open
Keywords: symmetry and asymmetry; nonlinear dynamical systems; bifurcation theory; chaos; multistability; synchronization; spatiotemporal patterns; complex networks; fractional-order systems; chaos control
(This special issue belongs to the Section B: Mathematics)
Symmetry/Asymmetry Applied in Multiphase Flow and Fluid Mechanics
edited by
submission deadline 31 Aug 2027 | Viewed by 49 | Submission Open
Keywords: symmetry; asymmetry; multiphase flow; interfacial dynamics; turbulent flow; computational fluid dynamics; multiphysics modeling; interfacial instability; transport phenomena; multiscale modeling
(This special issue belongs to the Section F: Engineering and Materials)
Symmetry for Advanced Sensing: Novel Materials, Structures, Systems and Signal Processing
edited by and
submission deadline 31 Aug 2027 | Viewed by 32 | Submission Open
Keywords: symmetry; sensing; sensors; sensing materials; sensor structures; sensor systems; signal processing; machine learning; metamaterials; nanostructures; biosensors; chemical sensors; physical sensors; wearable sensors
(This special issue belongs to the Section F: Engineering and Materials)
Applications of Symmetry Three-Phase Electrical Power Systems submission deadline 30 Sep 2027 | 3 articles | Viewed by 4095 | Submission Open
Keywords: overvoltage and short-current protections; transient analysis; data cybersecurity; machine learning; deep learning; metaheuristics
(This special issue belongs to the Section F: Engineering and Materials)
Applications Based on Symmetry and Asymmetry in Structural and Geotechnical Engineering
edited by Wenkun Yang and Yangtao Li
submission deadline 30 Sep 2027 | 5 articles | Viewed by 3645 | Submission Open
Keywords: rock or rock-like materials; symmetry/asymmetry; computer vision; machine learning; homogeneity/anisotropy; data-driven methods; multi-scale mechanical analysis
(This special issue belongs to the Section F: Engineering and Materials)
Advances in Physical & Theoretical Chemistry with Symmetry/Asymmetry
edited by
submission deadline 30 Sep 2027 | Viewed by 352 | Submission Open
Keywords: symmetry; chirality; group theory; asymmetric catalysis; spectroscopic selection rules; molecular electronic structure; piezoelectric devices; symmetry breaking; nonlinear optics
(This special issue belongs to the Section D: Chemistry: Symmetry/Asymmetry)
Symmetric Spaces and Fixed Points
edited by , Piyachat Borisut and
submission deadline 30 Sep 2027 | Viewed by 332 | Submission Open
Keywords: fixed point theory; symmetric spaces; variational inequalities; optimization algorithms; iterative methods; hadamard manifolds; proximal mappings; nonexpansive mappings
(This special issue belongs to the Section B: Mathematics)
Symmetry and Asymmetry in Design of Bioactive Agents and Chemical Biology
edited by
submission deadline 30 Sep 2027 | Viewed by 324 | Submission Open
Keywords: chirality; chiral nature of biological targets; structural characterization of receptors, enzymes, and other chiral targets of bioactive agents; drugs; agrochemicals; natural compounds; asymmetric synthesis; analytical techniques suitable for the study of chiral compounds; chiral separation; pharmacophore; targets; in silico-–computational/in vitro/in vivo studies; asymmetry in nanosciences; legislation and guidelines; chemical biology
(This special issue belongs to the Section D: Chemistry: Symmetry/Asymmetry)
Symmetry and Asymmetry in Vibration and Impact Dynamics of Advanced Materials and Structures
edited by and Shiwen Feng
submission deadline 30 Sep 2027 | Viewed by 185 | Submission Open
Keywords: mechanical behaviors; vibration control; impact dynamics; wave propagation; porous composites; multiscale modeling
(This special issue belongs to the Section F: Engineering and Materials)
Symmetry/Asymmetry in Cryptography and Cybersecurity
edited by , Vesna Dimitrova and Qianmu Li
submission deadline 30 Sep 2027 | Viewed by 165 | Submission Open
Keywords: symmetric cryptography; asymmetric cryptography; cryptanalysis; quantum computing; AI-driven security and security of AI systems; threat detection and mitigation; privacy preservation; attack–defense asymmetry; anomaly and intrusion detection; IoT/CPS/cloud/network/database/web/software/blockchain security
(This special issue belongs to the Section A: Computer Science)
Biomechanical Symmetry and Asymmetry in the Era of Artificial Intelligence and Wearable Technologies submission deadline 30 Sep 2027 | Viewed by 69 | Submission Open
Keywords: biomechanics; movement asymmetry; gait analysis; anomaly detection; wearable sensors; machine learning; rehabilitation; semantics; knowledge graphs; AI agents; artificial intelligence
(This special issue belongs to the Section E: Life Sciences)
Applications of Symmetric/Asymmetric Mathematical Modelling in Epidemiological Research
edited by Amine El Bhih
submission deadline 30 Sep 2027 | Viewed by 29 | Submission Open
Keywords: epidemiological modelling; symmetry and asymmetry; infectious disease dynamics; heterogeneous transmission; epidemic networks; symmetry breaking; basic reproduction number; global stability; bifurcation analysis; reaction–diffusion systems; fractional differential equations; time-delay models; optimal control; parameter estimation; numerical simulation
(This special issue belongs to the Section B: Mathematics)
Advances in Black Holes: Symmetry and Photon Ring
edited by Sara Kanzi
submission deadline 30 Sep 2027 | Viewed by 29 | Submission Open
Keywords: black hole; symmetry; photon ring; black hole shadow; quantum gravity
(This special issue belongs to the Section C: Physics)
Symmetry and Asymmetry in Unmanned Systems Control and Optimization
edited by and Yufeng Tian
submission deadline 31 Oct 2027 | Viewed by 81 | Submission Open
Keywords: unmanned systems; symmetry and asymmetry; control and optimization; multi-agent coordination; fault tolerance and robustness
(This special issue belongs to the Section A: Computer Science)
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