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 Nonlinear Partial Differential Equations: Topics and Advances submission deadline 31 Jan 2026 | 2 articles | Viewed by 778 | Submission Open
Keywords: nonlinear partial differential equations; existence of the initial value problem; stability of solutions; optimal control system; inverse problem; regularization method; numerical method for partial differential equations; symmetry
(This special issue belongs to the Section Mathematics)
Symmetry: Mathematical Applications (Fuzzy Systems, Artificial Intelligence, and Neuro-Fuzzy) in Energy and Agricultural Systems
edited by , Marcelo Campos and
submission deadline 31 Jan 2026 | Viewed by 605 | Submission Open
Keywords: fuzzy systems; artificial intelligence; neuro-fuzzy; applied mathematics; collaborative computing; machine learning; electrical power systems; agricultural systems
(This special issue belongs to the Section Mathematics)
Symmetry and Asymmetry in Automatic Control submission deadline 31 Jan 2026 | Viewed by 536 | Submission Open
Keywords: symmetric control; asymmetric control; robust control; adaptive control; nonlinear control; optimal control; fault-tolerant control; cyber-physical systems; robotics and automation; aerospace control
(This special issue belongs to the Section Computer)
Symmetry in Fault Detection and Diagnosis for Dynamic Systems submission deadline 31 Jan 2026 | Viewed by 502 | Submission Open
Keywords: fault detection and diagnosis; artificial intelligence; symmetry; dynamic systems
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Mathematical Analysis and Applications, 2nd Edition
edited by
submission deadline 31 Jan 2026 | 1 articles | Viewed by 395 | Submission Open
Keywords: differential equations; functional analysis; mathematical models; computational analysis; applications of mathematical analysis
(This special issue belongs to the Section Mathematics)
Symmetry in Energy Systems and Electrical Power submission deadline 31 Jan 2026 | 1 articles | Viewed by 339 | Submission Open
Keywords: symmetry; asymmetry; optimization; energy systems; electrical power; grids and microgrids; energy efficiency; sustainability; reliability
(This special issue belongs to the Section Engineering and Materials)
Control and Protection Technologies for Converter-Based Power Systems Under Symmetric and Asymmetric Conditions
edited by Yingyu Liang, and Botong Li
submission deadline 31 Jan 2026 | Viewed by 246 | Submission Open
Keywords: grid-following converters; grid-forming converters; fault ride-through; small-signal stability; transient stability; interaction coupling mechanism; fault characteristic; new protection principles; fault diagnosis and location; artificial intelligence
(This special issue belongs to the Section Engineering and Materials)
Demystifying the Dark Sector of the Cosmos in the Lab: Astrophysical Ingredients in Laboratory Searches near the Quantum Limit
edited by Antonios Gardikiotis
submission deadline 31 Jan 2026 | Viewed by 237 | Submission Open
Keywords: dark matter; matter– antimatter asymmetry; axions; axion-like particles (ALPs); dark photons; haloscope; helioscope; quantum sensors; single-microwave-photon detector; standard quantum limit (SQL); microwave cavities; dielectric haloscope; plasma haloscope; dish antenna
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry in Large Language Models-Based Natural Language Processing
edited by Jian Liao
submission deadline 31 Jan 2026 | Viewed by 223 | Submission Open
Keywords: large language models; natural language processing; dataset imbalance; linguistic structures; model robustness; interpretability; bias mitigation; long-range dependencies
(This special issue belongs to the Section Computer)
Applications Based on Symmetry in Control Systems and Robotics submission deadline 31 Jan 2026 | Viewed by 208 | Submission Open
Keywords: non-linear control; cooperative control; symmetry applications; over actuated robots; quadruped symmetry; collaborative robotics; mobile/aerial manipulators; optimal control
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry: Computational and/or Experimental Studies on Bio-Organic Compounds
edited by
submission deadline 31 Jan 2026 | Viewed by 163 | Submission Open
Keywords: gaseous; solvated; or crystal structure; isomerism; internal and external effects; homo- and/or hetero-association; electron delocalization; physical; physicochemical; or biochemical properties in the gas phase and/or solution; biological activity; molecular modeling and/or experimental studies
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Symmetry/Asymmetry in Computational and Theoretical Chemistry submission deadline 31 Jan 2026 | Viewed by 151 | Submission Open
Keywords: chemical physics; theoretical chemistry; computational chemistry; quantum chemical calculations; density functional theory (DFT); electronic structure calculations; symmetry; asymmetry; chirality; chemical reactivity; nanoscience; molecular self-assembly; scanning tunneling microscopy
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Symmetry in Fuzzy Integro-Differential Equations
edited by
submission deadline 31 Jan 2026 | Viewed by 117 | Submission Open
Keywords: symmetry analysis; fuzzy sets; integro-differential equations; continuous symmetries; conservation laws; modeling uncertainty; fuzzy logic; numerical methods; transformation methods; exact solutions; variational principles; functional analysis; nonlinear dynamics
(This special issue belongs to the Section Mathematics)
Symmetry in Fault Detection, Diagnosis, and Prognostics submission deadline 31 Jan 2026 | Viewed by 114 | Submission Open
Keywords: symmetry in fault detection; symmetry in system degradation; AI-based fault diagnosis; predictive maintenance; signal processing for fault detection; physics-informed machine learning; vibration analysis; industrial diagnostics; sensor fusion; reliability engineering
(This special issue belongs to the Section Engineering and Materials)
Applications Based on Symmetry in Nuclear Energy and Engineering
edited by Gustavo Alonso, Kevin T. Clarno and
submission deadline 31 Jan 2026 | Viewed by 114 | Submission Open
Keywords: nuclear reactors; fuel assembly performance; transient analysis; stability analysis; fault diagnosis; electricity system planning; electricity system design; operational efficiency; reliability
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Harmonic Analysis and Applications
edited by Ridha Horchani
submission deadline 31 Jan 2026 | Viewed by 109 | Submission Open
Keywords: harmonic analysis; symmetry; asymmetry; Fourier analysis; wavelet theory; partial differential equations; signal processing; imaging; quantum mechanics; mathematical applications
(This special issue belongs to the Section Mathematics)
Modified Gravity and Related Symmetries
edited by Branko Dragovich and
submission deadline 31 Jan 2026 | Viewed by 109 | Submission Open
Keywords: modified gravity; symmetries in modified gravity; f(R) gravity; f(T) gravity; nonlocal gravity; horndeski gravity; phenomenology of modified gravity; black holes in modified gravity; mathematical foundations of gravity
(This special issue belongs to the Section Physics)
Symmetries in Galaxies: Structure, Motion, and Evolution of Galaxies
edited by Zhuo Chen, and
submission deadline 31 Jan 2026 | Viewed by 80 | Submission Open
Keywords: galaxy formation; galaxy evolution; star formation; chemical enrichment; feedback; cosmological simulations; galaxy morphology and kinematics; large-scale surveys
(This special issue belongs to the Section Physics)
Applications Based on Symmetry in Additive Manufacturing
edited by and
submission deadline 31 Jan 2026 | Viewed by 72 | Submission Open
Keywords: additive manufacturing; symmetry-driven design; topology optimization; dimension reduction; 4D printing; bio-inspired structures; multi-material AM; numerical modeling; hierarchical lattices
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry in Data Compression
edited by and
submission deadline 31 Jan 2026 | Viewed by 51 | Submission Open
Keywords: data compression; symmetry detection; algorithm analysis; exact and approximate symmetry; lossless and lossy data compression; symmetrical and asymmetrical data compression algorithms; spatial; time-varying and non-geometric data; feature-based data compression; error control
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Machine Learning and Data Science: Methods and Applications in Text Mining
edited by and Bahrini Aram
submission deadline 31 Jan 2026 | Viewed by 51 | Submission Open
Keywords: symmetry/asymmetry in NLP; text classification and clustering; imbalanced text data; semantic relationships; bias detection and fairness; social media mining; low-resource language processing; dimensionality reduction; bibliometric analysis; web content mining
(This special issue belongs to the Section Computer)
Applications Based on Symmetry in Adversarial Machine Learning
edited by , Yiliao Song and Xiao Chen
submission deadline 31 Jan 2026 | Viewed by 41 | Submission Open
Keywords: symmetry theories and applications; adversarial machine learning; adversarial attacks and defense; artificial intelligence; security; privacy and fairness
Symmetry/Asymmetry in Metamaterials
edited by Liyun Cao and Yifan Zhu
submission deadline 31 Jan 2026 | Viewed by 29 | Submission Open
Keywords: metamaterial; metasurface; phononic crystals; symmetry/asymmetry design and behavior; elastic wave propagation; noise and vibration isolation/absorption
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Fuzzy Set
edited by Panagiotis Chountas
submission deadline 31 Jan 2026 | Submission Open
Keywords: fuzzy theory and symmetry; fuzzy decision making; intuitionistic fuzzy sets; multiple-criteria decision-making methods (MCDMs); fuzzy fractional Brownian motion; large language models (LLMs); data and knowledge engineering
(This special issue belongs to the Section Mathematics)
Symmetries/Asymmetries in Neurorehabilitation
edited by
submission deadline 1 Feb 2026 | Viewed by 255 | Submission Open
Keywords: neurorehabilitation; symmetry; asymmetry; central motor neuron diseases; multiple sclerosis; spinal cord injuries; stroke; advanced technologies; robotics; exoskeletons; functional electrical stimulation; repetitive transcranial magnetic stimulation (rTMS); virtual reality; motor and sensory impairments; personalized therapeutic interventions
(This special issue belongs to the Section Life Sciences)
Advances on Engineering Graphics: Improvements and New Proposals, Volume 2 submission deadline 15 Feb 2026 | 5 articles | Viewed by 16025 | Submission Open
(This special issue belongs to the Section Computer)
Lorentz Symmetry and General Relativity
edited by and
submission deadline 15 Feb 2026 | 2 articles | Viewed by 4162 | Submission Open
Keywords: lorentz symmetry; standard-model extension; modified theories of gravity; physics beyond general relativity; Einstein’ s equivalence principle; experimental tests of gravitational theories
(This special issue belongs to the Section Physics)
Symmetry in Applied Continuous Mechanics, 2nd Edition submission deadline 15 Feb 2026 | 2 articles | Viewed by 990 | Submission Open
Keywords: symmetry; skew symmetry; identical parts; automotive engineering; structure; numerical analysis; modal analysis; finite element method (FEM); aerospace engineering; theoretical models; elastic systems; eigenvalue; eigenmode; experimental methods; civil engineering
(This special issue belongs to the Section Mathematics)
Symmetry and Complexity, 4th Edition
edited by
submission deadline 15 Feb 2026 | Viewed by 138 | Submission Open
Keywords: calculus; ordinary and partial differential equations; integral differential equations; stochastic integral problems; complexity; symmetry
Symmetry in Theoretical Particle Physics and Hadron Physics
edited by and Joaquin Grefa
submission deadline 15 Feb 2026 | Viewed by 71 | Submission Open
Keywords: Z3 center symmetry and confinement; chiral symmetry restoration; phase transitions in hot and dense QCD; neutron stars; heavy-ion collisions; QCD phase transitions; color superconductivity; lattice QCD; RMF models; neutrino transport; in-medium mass of hadrons; equation of state
Application of Symmetry/Asymmetry and Machine Learning submission deadline 20 Feb 2026 | Viewed by 104 | Submission Open
Keywords: symmetry; asymmetry; machine learning; blockchain technology; image processing; computer vision; embedded systems; pattern recognition; deep learning; feature extraction
(This special issue belongs to the Section Computer)
Symmetries in Pattern Recognition: Principles and Applications submission deadline 27 Feb 2026 | Viewed by 96 | Submission Open
Keywords: pattern recognition; signal processing; artificial intelligence; neural networks; time series; biomedical signals; deep learning; applied mathematics; biometrics; differential equations
(This special issue belongs to the Section Computer)
Symmetry in Mathematical Models submission deadline 28 Feb 2026 | 7 articles | Viewed by 9007 | Submission Open
Keywords: artificial intelligence; machine learning; neural network; data analysis; big data in astrophysics; nonlinear dynamics; biomathematics; mathematical modelling; chaos; symmetry
(This special issue belongs to the Section Mathematics)
Symmetry in Process Optimization submission deadline 28 Feb 2026 | 8 articles | Viewed by 8545 | Submission Open
Keywords: symmetry; process optimization; machine learning; optimization methods; interdisciplinary; algorithm efficiency; model robustness; solution quality; engineering; physics; chemistry; medecine
(This special issue belongs to the Section Computer)
Research on Fuzzy Logic and Mathematics with Applications, 3rd Edition
edited by
submission deadline 28 Feb 2026 | 7 articles | Viewed by 4468 | Submission Open
Keywords: fuzzy set; nonstandard fuzzy set; fuzzy soft set; fuzzy logic; fuzzy topology; fuzzy algebra; fuzzy graph theory; fuzzy control; fuzzy decision making; fuzzy arithmetic; fuzzy classification and pattern recognition
(This special issue belongs to the Section Mathematics)
Symmetry/Asymmetry in Fuzzy Control submission deadline 28 Feb 2026 | 5 articles | Viewed by 3058 | Submission Open
Keywords: robotics; motion control; embedded systems; fuzzy control; fuzzy sets; fuzzy reasoning; real-time systems
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Quantum Mechanics
edited by Baoyi Chen
submission deadline 28 Feb 2026 | 2 articles | Viewed by 2991 | Submission Open
Keywords: symmetry breaking; conservation equation; phase transition; deep learning; conservation in statistics; quantum mechanics
(This special issue belongs to the Section Physics)
Symmetry and Its Applications in Complex Analysis by the Means of Special Functions
edited by
submission deadline 28 Feb 2026 | 4 articles | Viewed by 2610 | Submission Open
Keywords: symmetry; univalent functions; bi-univalent functions; multivalent functions; fractional calculus; q-calculus; special functions
(This special issue belongs to the Section Mathematics)
The Equation of State of Compact Stars submission deadline 28 Feb 2026 | 1 articles | Viewed by 2159 | Submission Open
Keywords: matter in canonical neutron star; the role of quantities such as nuclear incompressibility; nuclear symmetry energy; and nuclear effective mass; Nature of phase transitions in hybrid compact stars: first order; crossover; critical end points in the QCD phase diagram; dense matter in heavy ion collisions; hybrid stars in disconnected branches of the mass– radius diagram; quark stars with and without strangeness; impact of the EoS in compact star cooling processes; EoS with hyperon and boson content; hot dense nuclear matter in proto-compact stars and in mergers; methods of EoS determination from observables: Bayesian analyses; neural networks; machine learning approaches; effective field theories; dense matter in rotating compact stars; probing the compact star EoS with gravitational waves; the equation of state under the framework of alternative theories of gravity; dark matter in the compact star EoS
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Evolutionary Algorithms
edited by Enrique Naredo and
submission deadline 28 Feb 2026 | 1 articles | Viewed by 1883 | Submission Open
Keywords: genetic algorithms; genetic programming; grammatical evolution; evolutionary computation; evolutionary programming; evolution strategies; differential evolution; swarm intelligence; particle swarm optimization; artificial bee colony; ant colony optimization; artificial immune systems; memetic algorithms; large-scale optimization problems; cuckoo search algorithms; symbiotic organisms search; whale optimization algorithms; butterfly optimization algorithms; medical image processing and analysis; fundamentals of evolutionary algorithms; biometric recognition; optimization and learning methods; document analysis and recognition; video analysis and understanding; character recognition; visual applications and systems; face recognition and pose estimation; vision problems in robotics and autonomous driving; pattern classification and clustering analysis; object detection; tracking; and recognition; machine learning; action recognition; neural networks and deep learning; multimedia analysis and reasoning; feature extraction and feature selection; GPU implementation of evolutionary computing; symmetry
(This special issue belongs to the Section Computer)
Applications Based on Symmetry/Asymmetry in Data Mining
edited by and
submission deadline 28 Feb 2026 | 1 articles | Viewed by 1536 | Submission Open
Keywords: data mining; symmetry; asymmetry; pattern recognition; anomaly detection; classification; machine learning; feature engineering; data analysis; clustering
(This special issue belongs to the Section Computer)
Advances in Machine Learning and Symmetry/Asymmetry
edited by and Hongbin Liu
submission deadline 28 Feb 2026 | 2 articles | Viewed by 1456 | Submission Open
Keywords: machine learning; iIterative algorithm; heuristic method; efficiency; symmetry constrained optimization; process monitoring; fault diagnosis
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Future Wireless Networks
edited by , and Han Xiao
submission deadline 28 Feb 2026 | 2 articles | Viewed by 1358 | Submission Open
Keywords: wireless networks; network architecture; network management; quality of service
(This special issue belongs to the Section Computer)
Meta-Heuristics for Manufacturing Systems Optimization, 3rd Edition
edited by , and Jing Wang
submission deadline 28 Feb 2026 | 2 articles | Viewed by 1269 | Submission Open
Keywords: meta-heuristic; production scheduling; optimization; manufacturing systems
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry in Intelligent Control and Computing
edited by Yinyan Zhang, Ameer Tamoor Khan and Mohammed Aquil Mirza
submission deadline 28 Feb 2026 | 3 articles | Viewed by 1159 | Submission Open
Keywords: intelligent control; computing; symmetry; asymmetry; robotics
(This special issue belongs to the Section Engineering and Materials)
Applications Based on Symmetry in Machine Learning and Data Mining
edited by Hao Chen and
submission deadline 28 Feb 2026 | 2 articles | Viewed by 929 | Submission Open
Keywords: symmetry; machine learning; data mining; invariance; model generalization; pattern detection; interdisciplinary research; neural networks; feature extraction
(This special issue belongs to the Section Computer)
2025 9th International Conference on Electronic Information Technology and Computer Engineering
edited by Xin Luo and
submission deadline 28 Feb 2026 | 1 articles | Viewed by 649 | Submission Open
Keywords: digital signal processing; sensor technology; embedded systems; digital communication technologies; satellite communication technologies; wireless network communication technologies; mobile communication; computer network communications; signal and image processing; multimedia technology; semiconductor devices; optical networks; communication; computer applications; photovoltaic system; power electronics; radio frequency; automation; virtual instrumentation; grid computing; robotics; information remote sensing; numerical analysis; operating systems; programming paradigms; quantum computing theory; scientific computing; computer programming; database management systems; evolutionary computation; logic programming; machine learning; software engineering; software testing; symbolic mathematics; advanced adaptive signal processing; spectrum estimation and modeling; TF spectrum analysis and wavelet analysis; higher-order spectral analysis; adaptive filtering and signal processing; array signal processing; hardware implementation for signal processing; speech and audio coding; speech synthesis and recognition; image processing and understanding; information ocean technology; PDE for image processing; video compression and streaming; computer vision and VR; multimedia and human– computer interactions; statistic learning and pattern recognition; AI and neural networks; communication signal processing; SP for internet and wireless communication
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Intelligent Transportation
edited by and Wei Li
submission deadline 28 Feb 2026 | Viewed by 421 | Submission Open
Keywords: pavement detection; road performance; traffic flow; traffic accident analysis; vehicle road collaboration
(This special issue belongs to the Section Computer)
Symmetries in Optimization Theory and Its Applications
edited by Xiaoxi Zhang, Jinhang Zuo and Chee Wei Tan
submission deadline 28 Feb 2026 | Viewed by 283 | Submission Open
Keywords: optimization theory; symmetry in optimization; symmetric cone optimization; combinatorial optimization; sparse optimization; statistical optimization; financial optimization; economic optimization; interior-point methods; first-order methods; learning-aided optimization; reinforcement learning; neural networks; mathematical modeling
(This special issue belongs to the Section Computer)
Supersymmetry Approaches in Quantum Mechanics and Field Theory
edited by
submission deadline 28 Feb 2026 | Viewed by 263 | Submission Open
Keywords: susyqm; supersymmetry; supersymmetric Wigner– Dunkl quantum mechanics; isospectrality; shape invariance; algebraic methods in quantum mechanics; factorization method
(This special issue belongs to the Section Physics)
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