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 Numerical Solutions
edited by
submission deadline 31 Mar 2026 | Viewed by 39 | Submission Open
Keywords: conservation; geometric integration; symplectic; invariants; discretization; structure preserving; stability; Hamiltonian; time-reversibility; long-term simulation
(This special issue belongs to the Section Mathematics)
Global and Local Scale Symmetry in Gravitation and Cosmology
edited by
submission deadline 15 Apr 2026 | 3 articles | Viewed by 12479 | 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 151 | Submission Open
Keywords: micromagnetic modeling; spintronic devices; spin wave dynamics; nanomagnetism; skyrmions; magnon
(This special issue belongs to the Section Physics)
Integral/Differential Equations and Symmetry
edited by and
submission deadline 15 Apr 2026 | Viewed by 151 | Submission Open
Keywords: lie symmetry analysis; differential equations; integral equations; symmetry methods; integrable systems; nonlinear waves; invariant solutions; conservation laws; nonlocal symmetries
(This special issue belongs to the Section Mathematics)
Recent Advances in Symmetry-Based Approaches to Retrieval-Augmented Generation in Large Language Models
edited by and
submission deadline 20 Apr 2026 | 2 articles | Viewed by 5796 | Submission Open
Keywords: RAG; LLMs; symmetry-based approaches; information retrieval; optimization techniques
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Machine Learning and Data Science
edited by and
submission deadline 25 Apr 2026 | 1 articles | Viewed by 1555 | 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 211 | 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 5339 | Submission Open
Keywords: evolutionary computation; reinforcement learning; optimization robotics; cryptography
(This special issue belongs to the Section Computer)
Symmetry and Its Applications in Computer Vision
edited by Yunyi Yan, Junxuan Wang and Lu Zhao
submission deadline 30 Apr 2026 | 7 articles | Viewed by 5016 | Submission Open
Keywords: symmetry and asymmetry; computer vision; artificial intelligence and neuroscience; signal and image processing or analysis; large model optimization and application
(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 4272 | 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)
Gravitational Physics and Symmetry submission deadline 30 Apr 2026 | 4 articles | Viewed by 4270 | Submission Open
Keywords: gravitational waves and their detection; black hole physics and singularities; cosmology and the large-scale structure of the universe; theoretical developments in general relativity; symmetry principles in gravitational theories; quantum gravity and the unification of forces; experimental tests of gravitational theories; applications of symmetry in particle physics and cosmology; mathematical frameworks for symmetry and gravitation; interdisciplinary approaches to gravitational physics and symmetry
(This special issue belongs to the Section Physics)
Asymmetry and Symmetry in Cognitive and Clinical Neuropsychology submission deadline 30 Apr 2026 | 1 articles | Viewed by 3341 | Submission Open
Keywords: brain lateralization; brain asymmetry; hemispheric specialization; behavioral asymmetry; cognition; handedness; clinical neuropsychology
(This special issue belongs to the Section Life Sciences)
Symmetry in Solving NP-Hard Problems
edited by Luka Fürst and Uroš Čibej
submission deadline 30 Apr 2026 | 4 articles | Viewed by 3023 | Submission Open
Keywords: symmetry; NP-hard problems; NP-complete problems; combinatorial optimization; graph theory; complete search; dynamic programming; metaheuristics; evolutionary algorithms
(This special issue belongs to the Section Computer)
Symmetry and Metaheuristic Algorithms
edited by Erik V. Cuevas
submission deadline 30 Apr 2026 | 2 articles | Viewed by 2882 | Submission Open
Keywords: symmetry-based optimization; the improvement in traditional metaheuristic algorithms (pso; sa; de; etc.) using new mechanisms; new metaheuristic algorithms; hybridization of metaheuristic methods; multi-objective optimization; theoretical insights into metaheuristic algorithms; metaheuristics in artificial intelligence and machine learning; metaheuristics for image processing; metaheuristic applications in healthcare and biomedical engineering; emerging trends and future directions in metaheuristic research
(This special issue belongs to the Section Computer)
Navigating New Horizons: Symmetry and Advances in the Integration and Active Support of Large-Scale Renewable Energy
edited by , Sizhe Chen, Li Liu and
submission deadline 30 Apr 2026 | 4 articles | Viewed by 2831 | Submission Open
Keywords: renewable energy; integration; power electronics; wind; PV; power flow optimization; power market
(This special issue belongs to the Section Engineering and Materials)
Advances in Fluid Dynamics and Energy Systems: Applications of Symmetry and Asymmetry
edited by , and Jesus Alberto Crespo-Quintanilla
submission deadline 30 Apr 2026 | 3 articles | Viewed by 2603 | 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)
Individual Differences in Behavioral and Neural Lateralization, 2nd Edition
edited by , Elena Mussini and
submission deadline 30 Apr 2026 | 2 articles | Viewed by 2463 | Submission Open
Keywords: behavioral lateralization; neural lateralization; individual differences; mental disorders; atypical lateralization; handedness; motor asymmetries; perceptual and attentional asymmetries; sex; age; personality; sexual orientation; cognitive performance; genetics
(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 2073 | 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)
Isospin Symmetry/Asymmetry in Experimental Nuclear Physics
edited by Yelei Sun
submission deadline 30 Apr 2026 | 1 articles | Viewed by 2015 | Submission Open
Keywords: isospin symmetry; isospin symmetry violation; isospin asymmetry; nuclear physics; nuclear reactions; nuclear structure; astrophysics
(This special issue belongs to the Section Physics)
Generalized Symmetries and Fractons in Gauge Theories submission deadline 30 Apr 2026 | 1 articles | Viewed by 1864 | Submission Open
Keywords: symmetries; anomalies; quantum field theory; string theory; fractons; spontaneous symmetry breaking; low-energy effective field theory; quantum phases of matter
(This special issue belongs to the Section Physics)
Applications Based on Symmetry/Asymmetry in Control Engineering
edited by Ricardo López-Gutiérrez
submission deadline 30 Apr 2026 | 2 articles | Viewed by 1568 | Submission Open
Keywords: robot; automatic control; system modeling; control algorithm; stability and performance analysis; task execution; human– robot interactions
(This special issue belongs to the Section Engineering and Materials)
Fuzzy Sets, Rough Sets, and Fuzzy Relational Equations: Theoretical Advances and Applications
edited by Zofia Matusiewicz and
submission deadline 30 Apr 2026 | 2 articles | Viewed by 1539 | Submission Open
Keywords: fuzzy sets; fuzzy relational equations; rough sets; hybrid models; uncertainty modelling
(This special issue belongs to the Section Mathematics)
Symmetry and Numerical Methods in Fluid Dynamics
edited by
submission deadline 30 Apr 2026 | 1 articles | Viewed by 1040 | Submission Open
Keywords: steady-state/transient flows; multiphase flows; flow topology analysis; numerical methods in fluid flow; heat and mass transfer; mixing and mixedness; stability/instability
(This special issue belongs to the Section Mathematics)
Exploring Symmetries in the High-Energy Universe: Cosmic Rays, Solar Particles, and Astroparticle Physics submission deadline 30 Apr 2026 | 1 articles | Viewed by 905 | 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)
Security Analysis of Symmetric and Asymmetric Cryptographic Implementations
edited by Hailong Zhang
submission deadline 30 Apr 2026 | 1 articles | Viewed by 904 | Submission Open
Keywords: side-channel cryptanalysis; post-quantum cryptography; lightweight cryptography; cryptographic implementation; countermeasures; leakage assessment; theoretical model; security evaluation
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Active Noise Control and Acoustic Echo Cancellation: Advances and Applications
edited by , and Eliseo Sarmiento Rosales
submission deadline 30 Apr 2026 | 1 articles | Viewed by 849 | 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)
From Symmetry to Fluctuations: Topics and Advances in Statistical Mechanics and Probability Theory
edited by
submission deadline 30 Apr 2026 | 1 articles | Viewed by 758 | Submission Open
Keywords: symmetry and invariance in probabilistic and statistical mechanical models; spontaneous symmetry breaking and emergent phenomena in phase transitions; fluctuation theorems and non-equilibrium thermodynamics; large deviation theory; concentration inequalities; and stochastic stability; interacting particle systems; random fields; and spin models; markov processes; stochastic dynamics; and ergodic behavior; random matrix theory and applications in complex systems; dynamical processes in maximum caliber principles; quantum statistical mechanics and entropic principles; applications in data science; machine learning; and inference via statistical mechanics
(This special issue belongs to the Section Physics)
Symmetry in Mathematical and Statistical Epidemiology
edited by Zakaria Yaagoub, Abdelfatah Kouidere and Amine EL Bhih
submission deadline 30 Apr 2026 | Viewed by 708 | Submission Open
Keywords: fractional calculus; biomathematics; statistical modeling; symmetry analysis; parameter estimation; model identifiability; fractional epidemiology; mathematical biology; optimal control; fractional optimal control problems
(This special issue belongs to the Section Mathematics)
Advances in Nuclear Physics and Symmetry
edited by , Mustapha Oulne and Petrică Buganu
submission deadline 30 Apr 2026 | 1 articles | Viewed by 681 | Submission Open
Keywords: nuclear deformation; nuclear symmetry; shape coexistence; phase transitions; critical point symmetries; collective models; microscopic models; nuclear structure; experimental nuclear physics; geometric and algebraic symmetries
(This special issue belongs to the Section Physics)
Microphysics Meets Astrophysics: Understanding Dense Matter Through Compact Objects
edited by Ignacio Francisco Ranea-Sandoval and
submission deadline 30 Apr 2026 | 1 articles | Viewed by 656 | Submission Open
Keywords: neutron stars; hybrid stars; equation of state; dense matter; gravitational waves; hadron– quark phase transition; non-radial oscillation modes; dark matter in compact objects; quark stars
(This special issue belongs to the Section Physics)
Biocatalysts and Symmetry
edited by and Qian Huang
submission deadline 30 Apr 2026 | Viewed by 436 | Submission Open
Keywords: biocatalysis; multifunctional biocatalysts; enzymatic syntheses; evolution of enzymes; engineered biocatalysts; chemical synthesis; pharmaceuticals; chiral compounds; computational techniques; stereoselectivity
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Symmetry/Asymmetry in Extra Dimensions and Brane Worlds
edited by Heng Guo
submission deadline 30 Apr 2026 | Viewed by 434 | Submission Open
Keywords: extra dimensions; large extra dimensions; warped extra dimension; brane worlds; field theories in higher dimensions; higher-dimensional gravity; domain wall; extended theories of gravity; localization
(This special issue belongs to the Section Physics)
Symmetry in Ultracold Gases and Superfluidity
edited by Bo Liu and
submission deadline 30 Apr 2026 | Viewed by 422 | Submission Open
Keywords: many-body physics; topological states of matter; superfluidity; ultracold gases; quantum simulation
(This special issue belongs to the Section Physics)
New Trends on the Mathematical Models and Solitons Arising in Real-World Problems, 3rd Edition submission deadline 30 Apr 2026 | 1 articles | Viewed by 413 | Submission Open
Keywords: mathematical physics; partial differential equations; epidemic models; basic reproduction number; fractional differential equations; dynamical systems; stability analysis; bifurcation; optimal control
(This special issue belongs to the Section Mathematics)
Neutrinos and Symmetry: Theoretical Developments and New Directions
edited by Davide Meloni and Alessio Giarnetti
submission deadline 30 Apr 2026 | 1 articles | Viewed by 375 | Submission Open
Keywords: neutrino masses; neutrino mixing; symmetries; new physics; model building
(This special issue belongs to the Section Physics)
Data-Driven Intelligent Discovering and Symmetry: Theory, Method, and Security
edited by Puming Wang and Bin Yuan
submission deadline 30 Apr 2026 | Viewed by 360 | Submission Open
Keywords: big data; artificial intelligence for security; symmetry and asymmetry in cybersecurity; differentially private data analysis; network security; privacy and trust; system symmetry and security
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Computer Vision and Artificial Intelligence submission deadline 30 Apr 2026 | Viewed by 315 | Submission Open
Keywords: symmetry in AI; asymmetry in computer vision; neural networks; 3D object reconstruction; image recognition; AI in education; robotics and AI; data augmentation; adaptive learning algorithms; bias and fairness in AI; pattern recognition in complex environments; statistics and machine learning for vision; model-based vision; natural language processing; speech processing; inclusive technology
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Human-Computer Interaction
edited by , Xinguo Yu and Ting Zhang
submission deadline 30 Apr 2026 | Viewed by 309 | Submission Open
Keywords: human-computer interaction; symmetric interface design; AI-enhanced interaction systems; adaptive user interfaces; embodied interaction; cognition-aware HCI; natural user interfaces; multimodal interaction; user-centered design; interaction personalization; brain-computer interfaces; robot-mediated interaction; intelligent interactive systems; interaction analytics; engagement-sensitive interfaces; perceptual symmetry; asymmetric design patterns; cross-domain HCI applications
(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 294 | 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)
Symmetry and Asymmetry in Additive Manufacturing submission deadline 30 Apr 2026 | Viewed by 232 | 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-Informed Approaches in Geotechnical Engineering: Modeling, Sensing and Soil–Structure Interaction
edited by , and Fernando Feitosa Monteiro
submission deadline 30 Apr 2026 | Viewed by 227 | 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)
Symmetric/Asymmetric Study in Medical Imaging
edited by
submission deadline 30 Apr 2026 | Viewed by 194 | 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)
Applications in Symmetry/Asymmetry and Machine Learning
edited by and Jingang Shi
submission deadline 30 Apr 2026 | Viewed by 183 | Submission Open
Keywords: machine learning; artificial intelligence; symmetry and asymmetry; metaheuristic optimization; deep learning; recurrent neural networks; explainable AI; time series prediction; pattern recognition; data analysis
(This special issue belongs to the Section Computer)
Symmetry and Learning-Based Control Algorithms in Robotics and Mechatronic Systems
edited by , Firas Saidi and
submission deadline 30 Apr 2026 | Viewed by 181 | Submission Open
Keywords: symmetry in robotics; learning-based control; adaptive systems; nonlinear control; deep reinforcement learning; mechatronics applications; collaborative robots; motion planning; fault-tolerant control; sensor fusion
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Geotechnical Engineering
edited by , Haosen Wang and Xin Wang
submission deadline 30 Apr 2026 | 1 articles | Viewed by 169 | Submission Open
Keywords: mining blasting; mining area ecological studies; tunnel support; rock mass deformation control; slope stability; freeze-thaw damage in rock masses; grouting
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Gauge Theories submission deadline 30 Apr 2026 | Viewed by 121 | 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)
Symmetry and Neutrinos Astronomy
edited by Baobiao Yue and Alexander Sandrock
submission deadline 30 Apr 2026 | Viewed by 114 | 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)
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 113 | 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/Asymmetry in Robotics and Mechatronics submission deadline 30 Apr 2026 | Viewed by 105 | Submission Open
Keywords: robotics; mehatronics; symmetry/asymmetry; control; design  
(This special issue belongs to the Section Engineering and Materials)
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 95 | Submission Open
Keywords: particle physics; astrophysics; cosmology; early universe; astronomical observations; neutrinos; dark matter; gravitational waves
(This special issue belongs to the Section Physics)
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