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 Nuclear Physics and Nuclear Astrophysics
edited by Jelena Vesić
submission deadline 31 Mar 2026 | Viewed by 379 | Submission Open
Keywords: nuclear structure; nuclear astrophysics; nuclear models; symmetry violations; nuclear symmetry energy
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry and Autonomous Robotics submission deadline 31 Mar 2026 | Viewed by 279 | Submission Open
Keywords: mobile robot; trajectory prediction; navigation; control system; sensing
(This special issue belongs to the Section Computer)
Innovations in Passive and Active Microwave Circuits for Advanced Communication and Sensing Systems: Exploiting Symmetry for Enhanced Performance submission deadline 31 Mar 2026 | Viewed by 161 | Submission Open
Keywords: passive microwave components; active microwave devices; microwave circuit design; power amplifiers; oscillators; mixers; terahertz (THz) technology; 5G and 6G networks; multi-band circuits; reconfigurable circuits; high-frequency communication; ultra-high-speed systems; radar systems; filters and couplers; antenna design; circuit simulation tools; optimization techniques; advanced sensing applications; wireless communication technologies
(This special issue belongs to the Section Engineering and Materials)
Asymmetric Problems in Computational Mechanics and Their Engineering Applications
edited by Zhanyou Luo, and Man Huang
submission deadline 31 Mar 2026 | Viewed by 103 | Submission Open
Keywords: asymmetric material behaviors; multiphysics coupling; asymmetric boundary conditions; AI algorithms and applications; asymmetry in tunnel engineering; asymmetry in slope stability; asymmetry in foundation pit engineering; structural safety; laboratory testing; numerical simulation
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Computational Intelligence and Data Science
edited by and Jialiang Xie
submission deadline 31 Mar 2026 | Viewed by 102 | 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 Computer)
QCD Matter and Symmetry: Phases, Transitions and Extreme Conditions
edited by and German Lugones
submission deadline 31 Mar 2026 | Viewed by 87 | Submission Open
Keywords: non-Perturbative QCD and effective models; QCD phase diagram; isospin asymmetry/symmetry; chiral symmetry restoration; deconfinement; inhomogeneous phases; magnetized quark matter; anomalous magnetic moment; finite systems; color superconductivity; compact stars: hybrid stars– strange stars; neutron star mergers– cooling-oscillations; dark matter/energy
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Sustainable Processes: Waste Valorization and Green Engineering Approaches submission deadline 31 Mar 2026 | Viewed by 85 | Submission Open
Keywords: waste valorization; circular economy; catalysis separation processes; catalyst/sorbent characterisation; green engineering; symmetry/asymmetry; X-ray structures
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Latest Advancements in Symmetry and Asymmetry in Robotics and Mechatronics: Highlighting Emerging Trends and Their Intersections with Artificial Intelligence (AI), Machine Learning, Nonlinear Systems, and Control
edited by , , and Jeferson José de Lima
submission deadline 31 Mar 2026 | Viewed by 78 | Submission Open
Keywords: fractional calculus; machine learning; AI; deep learning; engineering and science applications
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry Studies in Digital Signals Processing
edited by , and Han Hai
submission deadline 31 Mar 2026 | Viewed by 77 | Submission Open
Keywords: communications; matrix and orthogonal signal processing; coding and detection; intelligent signal processing; biomedical signal processing; machine learning
(This special issue belongs to the Section Computer)
Symmetry and Artificial Intelligence in RF Power Amplifiers: Emerging Trends and Techniques submission deadline 31 Mar 2026 | Viewed by 77 | Submission Open
Keywords: power amplifier; RF/microwave; mm-wave; artificial intelligence; symmetry; MMIC
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Computational Fluid Dynamics (CFD) submission deadline 31 Mar 2026 | Viewed by 73 | Submission Open
Keywords: symmetry in fluid dynamics; computational fluid dynamics (CFD); symmetry-based algorithms; turbulence modeling; aerodynamics and hydrodynamics; renewable energy systems; multiphase flows; symmetry in environmental flows; efficient CFD simulations
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Nuclear and Particle Astrophysics
edited by
submission deadline 31 Mar 2026 | Viewed by 72 | Submission Open
Keywords: astrophysics; astroparticle physics; nuclear astrophysics; dark matter; dark energy; black hole physics; cosmology
(This special issue belongs to the Section Physics)
Symmetry and Control Systems submission deadline 31 Mar 2026 | Viewed by 67 | Submission Open
Keywords: symmetry in control theory; asymmetry in dynamic modeling; cyber– physical and embedded systems; intelligent process automation; mathematical modeling with symmetry; robotic and mechatronic systems; learning-based control; structural optimization; nonlinear and multivariable control
(This special issue belongs to the Section Engineering and Materials)
Applications Based on Symmetry in Nanomaterials
edited by
submission deadline 31 Mar 2026 | Viewed by 52 | Submission Open
Keywords: symmetry; nanomaterials; nanostructures; crystallographic symmetry; functional nanomaterials; metamaterials; energy materials; magnetic nanomaterials; optoelectronic properties; structure– property relationships
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry in Computer Vision and Pattern Recognition
edited by Li Yuan
submission deadline 31 Mar 2026 | Viewed by 46 | Submission Open
Keywords: symmetry; asymmetry; computer vision; deep learning; pattern recognition; spectral analysis; quality detection; anomaly detection; structural modeling; multimodal fusion
(This special issue belongs to the Section Computer)
Symmetry and Additive Manufacturing: Applications in Mechanical Engineering submission deadline 31 Mar 2026 | Viewed by 43 | Submission Open
Keywords: 3D printing; additive manufacturing; simulation; internet of things; machine learning; dimensional control; computer vision; symmetry phenomenon and theory; metals
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Composite Engineering
edited by
submission deadline 31 Mar 2026 | Viewed by 40 | Submission Open
Keywords: symmetry; composite materials; material symmetry; 2D- and 3D-printed micro-nanostructures; biodegradable composite materials; high-frequency microwave measurements; dielectrics; microwave absorption; electromagnetic shielding; composite architecture
(This special issue belongs to the Section Engineering and Materials)
Perturbative and Nonperturbative Aspects of Quantum Chromodynamics (QCD)
edited by and Jesus Javier Cobos-Martinez
submission deadline 31 Mar 2026 | Viewed by 40 | Submission Open
Keywords: quantum Chromodynamics; nonperturbative QCD; perturbative QCD; QCD confinement; spontaneous chiral symmetry breaking; collider physics; jets and showers in collider; gluon saturation; QCD in nuclear medium; beyond standard model of QCD; quark-gluon plasma
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry in Theoretical Chemistry
edited by Amin Bakhshandeh, and Emerson Gustavo de Souza Luna
submission deadline 31 Mar 2026 | Viewed by 40 | Submission Open
Keywords: band structure; molecular geometry; theoretical study of spectroscopy; reaction mechanism; catalysts
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Symmetry Studies in Metals & Alloys
edited by André Barros, Noé Cheung and Felipe Bertelli
submission deadline 31 Mar 2026 | Viewed by 35 | Submission Open
Keywords: crystallography; microstructure; mechanical properties; deformation; diffusion
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Crystals and Their Magnetic Properties submission deadline 31 Mar 2026 | Viewed by 34 | Submission Open
Keywords: X-ray crystallography; crystal structures; single-crystal X-ray diffraction; powder X-ray diffraction; magnetic materials; magnetic ordering; magnetism
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Clean Energy Systems: Recent Developments and Future Directions Towards AI submission deadline 31 Mar 2026 | Viewed by 28 | Submission Open
Keywords: load profile analysis; RES design; and simulation; hybrid RES with electrical/thermal energy storage system; uninterrupted power flow and grid stability through a smart microgrid; harmonic distortion control and management; active and reactive power management; anomaly and fault detection using ML and DL; energy demand and generation power forecasting; RES health monitoring and predictive maintenance; real-time data-sourced supervised learning models for grid stability; AI-driven decision making and deployment of robots for fault attendance; economic and environmental analysis
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Signal Processing
edited by Said Ziani
submission deadline 31 Mar 2026 | Viewed by 27 | Submission Open
Keywords: symmetry in signal processing; transform methods (fourier; wavelet; ICA; PCA); biomedical signal analysis (ECG; EEG); symmetry-based deep learning; feature extraction and pattern recognition; image and audio denoising; symmetric optimization algorithms; invariant representations; time-series forecasting; signal compression
(This special issue belongs to the Section Computer)
Global and Local Scale Symmetry in Gravitation and Cosmology
edited by
submission deadline 15 Apr 2026 | 3 articles | Viewed by 10122 | Submission Open
Keywords: Global Scale Invariance; Local Scale Invariance; Weyl Invariance; Inflation; 5th Force Problem in Late Time Cosmology; Flat Potentials
(This special issue belongs to the Section Physics)
Micromagnetic Simulations: Decoding the Future of Spintronics
edited by Haijun Zhao
submission deadline 15 Apr 2026 | Viewed by 65 | Submission Open
Keywords: micromagnetic modeling; spintronic devices; spin wave dynamics; nanomagnetism; skyrmions; magnon
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry in Machine Learning and Data Science
edited by and
submission deadline 25 Apr 2026 | Viewed by 79 | Submission Open
Keywords: symmetric feature learning; asymmetric data processing; geometric deep learning; imbalanced learning in robotics; sensor fusion for autonomous systems; dynamic environment adaptation; explainable ai in autonomous systems; adaptive control algorithms; swarm robotics coordination; human– robot interaction
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Data Mining and Machine Learning
edited by
submission deadline 27 Apr 2026 | Viewed by 106 | Submission Open
Keywords: model generalization; symmetry in machine learning; asymmetry in machine learning; real-world data complexity; data representation; pattern recognition
(This special issue belongs to the Section Computer)
Symmetry in Evolutionary Computation and Reinforcement Learning
edited by Lining Xing, , Junwei Ou and Jian Wu
submission deadline 30 Apr 2026 | 1 articles | Viewed by 4414 | Submission Open
Keywords: evolutionary computation; reinforcement learning; optimization robotics; cryptography
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Artificial Intelligence and Machine Learning-Based Image Processing
edited by Panagiotis Adamidis and Keiko Ono
submission deadline 30 Apr 2026 | 1 articles | Viewed by 2568 | Submission Open
Keywords: symmetry-aware deep learning; asymmetric feature detection; feature extraction; object detection; symmetry-guided attention; symmetry-based segmentation; deep feature learning; geometric invariance; pattern recognition; image segmentation; computer vision; image transformations
(This special issue belongs to the Section Computer)
Asymmetry and Symmetry in Cognitive and Clinical Neuropsychology submission deadline 30 Apr 2026 | 1 articles | Viewed by 2280 | Submission Open
Keywords: brain lateralization; brain asymmetry; hemispheric specialization; behavioral asymmetry; cognition; handedness; clinical neuropsychology
(This special issue belongs to the Section Life Sciences)
Neutrino Physics and Symmetries
edited by Eduardo Bauer, and Jiajie Ling
submission deadline 30 Apr 2026 | 2 articles | Viewed by 1070 | Submission Open
Keywords: lepton number symmetry; CP symmetry violation; see-saw model; scale-invariant models; supersymmetric models; radiative mechanisms (Zee and Ma models); minimal flavor violation (MFV) models; sterile neutrinos; double-beta decay; neutrino detectors
(This special issue belongs to the Section Physics)
Advances in Fluid Dynamics and Energy Systems: Applications of Symmetry and Asymmetry
edited by , and Jesus Alberto Crespo-Quintanilla
submission deadline 30 Apr 2026 | 1 articles | Viewed by 982 | Submission Open
Keywords: computational fluid dynamics (CFD); modeling of thermal and fluid dynamics; symmetry and asymmetry in thermal and fluid systems; heat and mass transfer; turbulent and laminar flows; multiphase flow analysis; numerical simulation and experimental validation; fluid– structure interaction; second law of thermodynamics and entropy generation; energy efficiency and optimization; renewable energy systems
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Active Noise Control and Acoustic Echo Cancellation: Advances and Applications
edited by , and Eliseo Sarmiento Rosales
submission deadline 30 Apr 2026 | Viewed by 301 | Submission Open
Keywords: active noise control; acoustic echo cancellation; sensor and actuator; subband filtering; efficient filter implementation; deep learning for acoustic echo cancellation and active noise control; real-time implementation of active noise control systems and acoustic echo canceller systems
(This special issue belongs to the Section Computer)
Application of Symmetry in Civil Infrastructure Asset Management
edited by Wang Chen, Jianhong Han, Lin Chen and
submission deadline 30 Apr 2026 | Viewed by 101 | Submission Open
Keywords: symmetry/asymmetry; infrastructure asset management; structural health monitoring; deterioration modelling; predictive maintenance; decision-making; probabilistic modelling; reinforcement learning; dynamic programming
(This special issue belongs to the Section Engineering and Materials)
Symmetric/Asymmetric Study in Medical Imaging
edited by
submission deadline 30 Apr 2026 | Viewed by 93 | Submission Open
Keywords: medical image processing; neuroimaging; brain asymmetry; image registration; image reconstruction; MRI; PET/SPECT imaging; CT imaging; diagnostic imaging; deep learning in medical imaging
(This special issue belongs to the Section Computer)
Impact of Molecular Symmetry and Asymmetry on the Collective Behavior of Liquid Crystals
edited by Natalia Osiecka-Drewniak
submission deadline 30 Apr 2026 | Viewed by 66 | Submission Open
Keywords: molecular symmetry; molecular asymmetry; liquid crystals; mesophase behavior; self-organization; phase transitions; molecular alignment; supramolecular architecture
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Symmetry in Gauge Theories submission deadline 30 Apr 2026 | Viewed by 64 | Submission Open
Keywords: gauge theories; standard model; lie algebras; (super)symmetries; spontaneous symmetry breaking; topological terms; non-perturbative phenomena; beyond the standard model; cartan formalism; vielbein and spin connection; unified theories
(This special issue belongs to the Section Physics)
Selected Papers: 3rd TOPAC: Topics of Particle, Astro and Cosmo Frontiers
edited by Hong-Hao Zhang, Zhaohuan Yu and Yiwen Pan
submission deadline 30 Apr 2026 | Viewed by 53 | Submission Open
Keywords: particle physics; astrophysics; cosmology; early universe; astronomical observations; neutrinos; dark matter; gravitational waves
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry in Additive Manufacturing submission deadline 30 Apr 2026 | Viewed by 25 | Submission Open
Keywords: additive manufacturing; process-induced asymmetry; design symmetry constraints; functionally graded symmetry; generative design; topology optimization; lattice and support structures; anisotropy mitigation; reinforcement gradients; slicing algorithms
(This special issue belongs to the Section Engineering and Materials)
Intelligent Fault Diagnosis for Rotating Machinery: Leveraging Symmetry
edited by
submission deadline 30 Apr 2026 | Viewed by 19 | Submission Open
Keywords: fault diagnosis; anomaly detection; health status monitoring; intelligent maintenance; signal processing; machine learning; deep learning
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Robotics and Mechatronics submission deadline 30 Apr 2026 | Viewed by 18 | Submission Open
Keywords: robotics; mehatronics; symmetry/asymmetry; control; design  
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Neutrinos Astronomy
edited by Baobiao Yue and Alexander Sandrock
submission deadline 30 Apr 2026 | Viewed by 17 | Submission Open
Keywords: neutrino astronomy; ultra-high-energy cosmic rays (UHECRs); cosmic neutrino background; supernova neutrinos; multi-messenger astrophysics; neutrino flavor composition; hadronic interactions; high-energy neutrino detection
(This special issue belongs to the Section Physics)
Exploring Symmetries in the High-Energy Universe: Cosmic Rays, Solar Particles, and Astroparticle Physics submission deadline 30 Apr 2026 | Viewed by 17 | Submission Open
Keywords: cosmic rays; astroparticle physics; solar activity; space weather; symmetry principles; particle acceleration; magnetic fields; high-energy astrophysics; heliospheric modulation
(This special issue belongs to the Section Physics)
Symmetry-Informed Approaches in Geotechnical Engineering: Modeling, Sensing and Soil–Structure Interaction
edited by , and Fernando Feitosa Monteiro
submission deadline 30 Apr 2026 | Viewed by 15 | Submission Open
Keywords: deep foundations; load testing of piles; soil– structure interaction; geotechnical instrumentation and monitoring; mechanics of unsaturated soils; piled raft foundation systems; static and dynamic pile load testing; performance assessment of foundation systems; geotechnical behavior of tropical soils; experimental methods in geotechnical engineering
(This special issue belongs to the Section Engineering and Materials)
Nuclear Physics and Symmetry/Asymmetry: Advances and Prospects
edited by
submission deadline 30 Apr 2026 | Viewed by 14 | Submission Open
Keywords: nuclear physics; phase transitions; QCD; neutrino; dense matter; exotic nuclei; cluster dynamics
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Digital Image Processing
edited by and
submission deadline 16 May 2026 | Viewed by 26 | Submission Open
Keywords: digital image processing; target recognition and classification; image generation; deep neural networks; artificial intelligence; remote sensing; deep learning
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Applied Machine Learning and Neural Networks for Hybrid Energy Ship Power System
edited by , Shuzheng Wang and Shaoping Chang
submission deadline 30 May 2026 | 1 articles | Viewed by 1489 | Submission Open
Keywords: symmetry in ship energy power systems; symmetry in coordination control and optimization; life prediction and evaluation of energy storage systems; security mechanism under extreme disaster conditions
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Biomechanics: Bridging Biological Structure, Mechanical Function and Clinical Insight submission deadline 30 May 2026 | Viewed by 215 | Submission Open
Keywords: symmetry; asymmetry; biomechanics; joint mechanics; mechanobiology; gait analysis; functional asymmetry; computational modeling; tissue remodeling; rehabilitation
(This special issue belongs to the Section Life Sciences)
Theoretical Chemistry and Quantum Chemical Computation: New Perspectives on Symmetry and Asymmetry in Molecular Systems
edited by Jelena Živković and
submission deadline 30 May 2026 | Viewed by 50 | Submission Open
Keywords: coordination chemistry; asymmetric synthesis; biocatalysts; quantum chemistry calculations; X-ray crystallography; enantiomer recognition; circular dichroism
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Carbon Neutrality and Symmetry in Power Engineering and Engineering Thermophysics, 2nd Edition
edited by Longfei Chen, , Guangze Li, and Bin Zhang
submission deadline 31 May 2026 | 1 articles | Viewed by 1990 | Submission Open
Keywords: carbon neutrality; power engineering; engineering thermophysics
(This special issue belongs to the Section Engineering and Materials)
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