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/Asymmetry Studies in Data Mining & Machine Learning of Large Language Models
edited by Shaolin Zhu and Lijie Wen
submission deadline 31 Jan 2026 | 4 articles | Viewed by 2021 | Submission Open
Keywords: symmetry; asymmetry; data mining; machine learning; large language models; deep learning
(This special issue belongs to the Section Computer)
Theory and Applications on the Recent Extensions of Ordinary Fuzzy Sets
edited by
submission deadline 31 Jan 2026 | 2 articles | Viewed by 1418 | Submission Open
Keywords: neutrosophic sets; symmetry/asymmetry; fuzzy sets
(This special issue belongs to the Section Engineering and Materials)
Applications Based on Symmetry/Asymmetry in Quantum Mechanics
edited by Amine Jaouadi
submission deadline 31 Jan 2026 | 1 articles | Viewed by 1180 | Submission Open
Keywords: quantum symmetry and asymmetry; symmetry breaking; symmetry-driven quantum control; quantum coherence; quantum information and quantum gates; quantum sensing; quantum communication; quantum machine learning
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry in CFD, Fluid Dynamics, and Heat Transfer: Theoretical and Computational Perspectives
edited by
submission deadline 31 Jan 2026 | Viewed by 1106 | Submission Open
Keywords: computational fluid dynamics (CFD); symmetry and asymmetry in fluid mechanics; heat transfer optimization; turbulence modeling and vortex dynamics; numerical methods in thermal and fluid systems; group theory applications in fluid dynamics; energy-efficient thermal management; multiphase and non-Newtonian fluid flows; convective and conductive heat transfer
(This special issue belongs to the Section Mathematics)
New Trends in Biomimetics for Life-Sciences
edited by , and Aniello Cammarano
submission deadline 31 Jan 2026 | 1 articles | Viewed by 1062 | Submission Open
Keywords: biomimetics; life-sciences; microneedle patches; functional biomaterials; biomedical nanomaterials; bio-inspired sensors; sustainable devices
(This special issue belongs to the Section Life Sciences)
Feature Papers in 'Physics' Section 2025 submission deadline 31 Jan 2026 | 2 articles | Viewed by 1061 | Submission Open
Keywords: symmetry in mathematical physics; local and global symmetries; continuous symmetries; spacetime symmetries; discrete symmetries and their tests; conservation laws and their tests; gauge theories; lie groups; relativity and tests of Lorentz invariance; spontaneous symmetry breaking; crystal symmetry; conformal symmetry; chiral symmetry and chiral symmetry breaking; dynamical symmetry breaking models; flavor symmetries; symmetries in condensed matter; infinite-dimensional symmetries; quantum group symmetries; baryon and lepton number; crystalline systems and their symmetries; symmetries in models for physics beyond the Standard Model; scaling laws of complex system
(This special issue belongs to the Section Physics)
Symmetry in Impact Mechanics of Materials and Structures
edited by Hao Jiang
submission deadline 31 Jan 2026 | 2 articles | Viewed by 922 | Submission Open
Keywords: impact mechanics; structural symmetry; material dynamic response; energy absorption mechanisms; crack propagation; shock wave propagation; numerical simulation; artificial intelligence optimization; damage detection; structural health monitoring
(This special issue belongs to the Section Engineering and Materials)
Symmetry: Feature Papers 2025
edited by
submission deadline 31 Jan 2026 | 1 articles | Viewed by 872 | Submission Open
Keywords: computer science; mathematics; physics; chemistry: symmetry/asymmetry; life sciences; engineering and materials
Symmetry and Asymmetry in Nonlinear Partial Differential Equations: Topics and Advances submission deadline 31 Jan 2026 | 2 articles | Viewed by 826 | 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-Aware Generative AI: Emerging Trends and Applications in Intelligent Transportation Systems submission deadline 31 Jan 2026 | Viewed by 796 | Submission Open
Keywords: symmetry in artificial intelligence; generative AI; smart transportation systems; neural network architectures; symmetric analysis
(This special issue belongs to the Section Computer)
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 611 | 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 547 | 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 512 | Submission Open
Keywords: fault detection and diagnosis; artificial intelligence; symmetry; dynamic systems
(This special issue belongs to the Section Engineering and Materials)
Applications Based on Symmetry in Control Systems and Robotics submission deadline 31 Jan 2026 | 1 articles | Viewed by 468 | 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 in Mathematical Analysis and Applications, 2nd Edition
edited by
submission deadline 31 Jan 2026 | 1 articles | Viewed by 415 | 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 383 | 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)
Symmetry and Asymmetry in Human–Computer Interaction for Medical Applications submission deadline 31 Jan 2026 | Viewed by 376 | Submission Open
Keywords: human– computer interaction; medical interface design; symmetry; asymmetry; brain– computer interface (BCI); healthcare technology; assistive systems; rehabilitation technology; visual perception; usability
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Large Language Models-Based Natural Language Processing
edited by Jian Liao
submission deadline 31 Jan 2026 | Viewed by 259 | 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)
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 247 | 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 240 | 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)
Stability and Bifurcation in Discrete Dynamical Systems: Application to Population Dynamics
edited by
submission deadline 31 Jan 2026 | Viewed by 225 | Submission Open
Keywords: discrete dynamical systems; difference equations; population dynamics; autonomous models; nonautonomous periodic models; evolutionary models; local stability; global stability; bifurcation
(This special issue belongs to the Section Mathematics)
Symmetry and Asymmetry: Computational and/or Experimental Studies on Bio-Organic Compounds
edited by
submission deadline 31 Jan 2026 | Viewed by 174 | 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 155 | 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 Fault Detection, Diagnosis, and Prognostics submission deadline 31 Jan 2026 | Viewed by 120 | 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)
Symmetry in Fuzzy Integro-Differential Equations
edited by
submission deadline 31 Jan 2026 | Viewed by 119 | 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/Asymmetry in Harmonic Analysis and Applications
edited by Ridha Horchani
submission deadline 31 Jan 2026 | Viewed by 119 | 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)
Applications Based on Symmetry in Nuclear Energy and Engineering
edited by Gustavo Alonso, Kevin T. Clarno and
submission deadline 31 Jan 2026 | Viewed by 117 | 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)
Modified Gravity and Related Symmetries
edited by Branko Dragovich and
submission deadline 31 Jan 2026 | Viewed by 117 | 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 88 | 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 62 | 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 55 | 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 52 | 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 33 | 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 | Viewed by 27 | 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)
Symmetrical Mathematical Computation in Fluid Dynamics, 2nd Edition
edited by and
submission deadline 31 Jan 2026 | Viewed by 15 | Submission Open
Keywords: symmetry; mathematical computation of fluid dynamics; symmetry constraints; symmetry breaking; transitional flow; reduced-order modeling; data-driven models
Symmetries/Asymmetries in Neurorehabilitation
edited by
submission deadline 1 Feb 2026 | Viewed by 257 | 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 16151 | 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 4255 | 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 1204 | 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 154 | 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 73 | 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 122 | 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 102 | 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 9171 | 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 8743 | 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 4727 | 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 3329 | 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 3049 | 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 2708 | 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)
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