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 Composite Engineering
edited by
submission deadline 31 Mar 2026 | Viewed by 34 | 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 32 | 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 Additive Manufacturing: Applications in Mechanical Engineering submission deadline 31 Mar 2026 | Viewed by 29 | 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 Clean Energy Systems: Recent Developments and Future Directions Towards AI submission deadline 31 Mar 2026 | Viewed by 17 | 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 9 | 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)
Symmetry in Crystals and Their Magnetic Properties submission deadline 31 Mar 2026 | Viewed by 9 | 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 and Asymmetry in Theoretical Chemistry
edited by Amin Bakhshandeh, and Emerson Gustavo de Souza Luna
submission deadline 31 Mar 2026 | Viewed by 8 | Submission Open
Keywords: band structure; molecular geometry; theoretical study of spectroscopy; reaction mechanism; catalysts
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Global and Local Scale Symmetry in Gravitation and Cosmology
edited by
submission deadline 15 Apr 2026 | 3 articles | Viewed by 9946 | 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 55 | 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 69 | 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 93 | 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 4371 | 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 2411 | 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 2202 | 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 997 | 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 927 | 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 286 | 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)
Symmetric/Asymmetric Study in Medical Imaging
edited by
submission deadline 30 Apr 2026 | Viewed by 87 | 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)
Application of Symmetry in Civil Infrastructure Asset Management
edited by Wang Chen, Jianhong Han, Lin Chen and
submission deadline 30 Apr 2026 | Viewed by 82 | 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)
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 63 | 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 60 | 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 50 | 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 Neutrinos Astronomy
edited by Baobiao Yue and Alexander Sandrock
submission deadline 30 Apr 2026 | Viewed by 15 | 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)
Nuclear Physics and Symmetry/Asymmetry: Advances and Prospects
edited by
submission deadline 30 Apr 2026 | Viewed by 12 | Submission Open
Keywords: nuclear physics; phase transitions; QCD; neutrino; dense matter; exotic nuclei; cluster dynamics
(This special issue belongs to the Section Physics)
Intelligent Fault Diagnosis for Rotating Machinery: Leveraging Symmetry
edited by
submission deadline 30 Apr 2026 | Viewed by 11 | 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
edited by , and José Alejandro Vásquez-Santacruz
submission deadline 30 Apr 2026 | Viewed by 10 | Submission Open
Keywords: robotics; mehatronics; symmetry/asymmetry; control; design  
(This special issue belongs to the Section Engineering and Materials)
Exploring Symmetries in the High-Energy Universe: Cosmic Rays, Solar Particles, and Astroparticle Physics submission deadline 30 Apr 2026 | Viewed by 10 | 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 and Asymmetry in Additive Manufacturing submission deadline 30 Apr 2026 | Viewed by 9 | 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)
Symmetry/Asymmetry in Digital Image Processing
edited by and
submission deadline 16 May 2026 | Viewed by 20 | 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 1414 | 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 201 | 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 43 | 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 1972 | Submission Open
Keywords: carbon neutrality; power engineering; engineering thermophysics
(This special issue belongs to the Section Engineering and Materials)
Symmetric/Asymmetric Analysis and Design of Microwave Circuits/Antennas
edited by Jianpeng Wang
submission deadline 31 May 2026 | 1 articles | Viewed by 606 | Submission Open
Keywords: antenna; function integration; microwave component; filter; power divider; phase shifter; balun; frequency selective surface
(This special issue belongs to the Section Engineering and Materials)
Asymmetry and Symmetry in Intelligent Computing Theory
edited by Peizhong Liu and
submission deadline 31 May 2026 | Viewed by 363 | Submission Open
Keywords: cloud computing; data science; bio-informatics; intelligent information retrieval; human– machine interaction and interfaces; signal and image processing; robotics; system control; telecommunications; virtual reality
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Human Movement and Sensors Applied in Bioengineering
edited by Wangdo Kim
submission deadline 31 May 2026 | Viewed by 313 | Submission Open
Keywords: symmetry in biomechanics; asymmetry in human movement; sensors in bioengineering; gait analysis; biomechanical modeling; movement disorder diagnosis; rehabilitation technology; wearable sensors; motion tracking systems; symmetry in neurorehabilitation
(This special issue belongs to the Section Life Sciences)
Selected Papers: The 18th International Conference on Advanced Computer Theory and Engineering (ICACTE 2025)
edited by Zhigeng Pan and
submission deadline 31 May 2026 | Viewed by 114 | Submission Open
Keywords: artificial intelligence and machine learning; computer systems and networks; data science and applications; human– computer interaction and multimedia; software engineering and applications; quantum information and quantum computing; blockchain technology and applications
(This special issue belongs to the Section Computer)
Applications Based on Symmetry/Asymmetry in Solid Mechanics
edited by Zhongtong Wang and
submission deadline 31 May 2026 | Viewed by 88 | Submission Open
Keywords: computational and theoretical solid mechanics; advanced materials and metamaterials; stress and failure; structural design and optimization; soft matter and bioinspired materials; nonlinear; multiscale; and anisotropic mechanics
(This special issue belongs to the Section Engineering and Materials)
Chiral Quark Models and Their Applications submission deadline 31 May 2026 | Viewed by 61 | Submission Open
Keywords: nonperturbative QCD; chiral quark models; effective field theories; LQCD; chiral symmetry breaking and restoration; Nambu– Jona-Lasinio model and extensions; quark-meson models; linear sigma model; thermodynamics of strongly interacting matter; QCD phase diagram; color superconductivity; meson properties; Isospin asymmetric matter; external magnetic fields; Dyson-Schwinger equations; neutron stars and compact objects; non-extensive statistics; applications to relativistic heavy ion collisions
(This special issue belongs to the Section Physics)
Advances in Metamaterials with Symmetry/Asymmetry: Optical, Acoustic, Mechanical, Photonic, Chiral, Electromagnetic, and Nonlinear Applications
edited by José Luis Rodríguez-Muñoz, and
submission deadline 31 May 2026 | Viewed by 47 | Submission Open
Keywords: metamaterials; symmetry; mechanical properties; chirality; electromagnetic waves; nonlinear phenomena; design; fabrication; experimental studies; theoretical modeling
(This special issue belongs to the Section Engineering and Materials)
AI-Driven Optimization for EDA: Balancing Symmetry and Asymmetry
edited by and Abdelaziz Ahaitouf
submission deadline 31 May 2026 | Viewed by 28 | Submission Open
Keywords: AI-driven optimization; electronic design automation; symmetry in circuit design; asymmetry in optimization; machine learning in EDA; neural networks and their applications in EDA; metaheuristic algorithms; deep learning for design automation; design space exploration; circuit optimization
(This special issue belongs to the Section Computer)
Symmetry or Asymmetry in Cosmology
edited by , and Hsu-Wen Chiang
submission deadline 18 Jun 2026 | Viewed by 15 | Submission Open
Keywords: cosmic inflation; non-gaussianity; modified gravity; effective field theory; cosmological correlators; parity violation; dark matter; dark energy; gravitational waves; large-scale structure
(This special issue belongs to the Section Physics)
Symmetry Energy in Nuclear Physics and Astrophysics submission deadline 30 Jun 2026 | 4 articles | Viewed by 10303 | Submission Open
Keywords: Nuclear symmetry energy; Equation of state; Nuclear structure; Nuclear astrophysics; Heavy ion physics; Neutron-rich nuclei; Nuclear binding energy; Symmetric nuclear matter; Neutron stars
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Wireless Communication and Sensor Networks II
edited by
submission deadline 30 Jun 2026 | 2 articles | Viewed by 4785 | Submission Open
(This special issue belongs to the Section Computer)
Applications of Symmetry/Asymmetry in Artificial Intelligence and Deep Metaheuristics
edited by
submission deadline 30 Jun 2026 | 1 articles | Viewed by 2833 | Submission Open
Keywords: symmetry; asymmetry; Internet of Things (IoT); big data; artificial intelligence; metaheuristic
(This special issue belongs to the Section Computer)
Applications of Special Functions in Complex Analysis and Their Symmetries submission deadline 30 Jun 2026 | 3 articles | Viewed by 1070 | Submission Open
Keywords: univalent functions; multivalent functions; special functions; multiplicative calculus; quantum calculus; differential subordination; differential superordination; fuzzy differential subordinations and superordinations
(This special issue belongs to the Section Mathematics)
Symmetry Application in Metals and Alloys
edited by Bo Zhang and Yimin Zhuo
submission deadline 30 Jun 2026 | 2 articles | Viewed by 1052 | Submission Open
Keywords: symmetric and asymmetric characteristics; metals and alloys; metal matrix composites; cermets; joining; casting; forging; additive manufacturing; powder metallurgy
(This special issue belongs to the Section Engineering and Materials)
Symmetry Studies and Application in Power System Stability
edited by Siqi Wu and Chang Li
submission deadline 30 Jun 2026 | 1 articles | Viewed by 454 | Submission Open
Keywords: symmetry; power system; power electronics; symmetric fault; asymmetric fault; stability; balanced condition; renewable energy; signal processing; inverter-based resources
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Distributed Power System
edited by and
submission deadline 30 Jun 2026 | Viewed by 285 | Submission Open
Keywords: distributed power systems; power system symmetry; harmonic detection; fault analysis; state estimation; renewable energy modeling; deep learning
(This special issue belongs to the Section Engineering and Materials)
Exploring the Advances in Symmetry and Quantum Field Theory: From Subatomic Interactions to the Early Universe
edited by and Naser Ahmadiniaz
submission deadline 30 Jun 2026 | Viewed by 243 | Submission Open
Keywords: quantum fields (scalar; fermionic; gauge); feynman diagrams and perturbation theory; renormalization (UV divergence; counterterms); path integral formulation; loop corrections; symmetries and conservation laws (Noether's theorem); semi-classical approximation: quantum fields on classical spacetimes; vacuum states in curved spacetimes (Hartle-Hawking; Bunch-Davies); particle creation in curved spacetime (Hawking radiation; Unruh effect); quantum anomalies in early universe dynamics; quantum effects in the cosmic microwave background (CMB)
(This special issue belongs to the Section Physics)
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