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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Bridging the Gap Between Cosmological Models and Observable Tensions: From Classical to Quantum Approaches to Cosmology
edited by and Peter Dunsby
submission deadline 31 Oct 2025 | Viewed by 448 | Submission Open
Keywords: dark energy; dark matter; inflation; cosmological tensions; quantum gravity; observational cosmology; cosmological constant
(This special issue belongs to the Section Physics)
Symmetry and Numerical Methods in Fluid Dynamics
edited by
submission deadline 31 Oct 2025 | Viewed by 433 | 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)
Advances in Nuclear Physics and Symmetry
edited by , Mustapha Oulne and Petrică Buganu
submission deadline 31 Oct 2025 | 1 articles | Viewed by 408 | 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)
Symmetry and Asymmetry in Radar Detection and Imaging
edited by , and Ping Liu
submission deadline 31 Oct 2025 | Viewed by 362 | Submission Open
Keywords: radar system design; target detection; target motion characteristics; target structural characteristics; radar imaging; data/image fusion; multidimensional feature extraction; pattern recognition; intelligent algorithm; electronic countermeasure
(This special issue belongs to the Section Engineering and Materials)
Heuristic Search for Combinatorial Optimization Problems and Symmetry Applications
edited by Shuli Hu, and
submission deadline 31 Oct 2025 | Viewed by 350 | Submission Open
Keywords: heristic search; exact method; local search; complex optimization; multi-objective optimization; heuristic search algorithm applications
(This special issue belongs to the Section Computer)
Symmetry Methods and Applications for Geometry and General Relativity
edited by Pedro Mario Cañate Casseres and
submission deadline 31 Oct 2025 | Viewed by 344 | Submission Open
Keywords: metric tensor; killing vectors; axisymmetric spacetimes; general relativity; exact solutions in general relativity; Lorentzian manifolds
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Extra Dimensions and Brane Worlds
edited by Heng Guo
submission deadline 31 Oct 2025 | Viewed by 326 | 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 Primordial Black Holes
edited by Paulo Custodio, Rodolfo Valentim and Marcio G. B. de Avellar
submission deadline 31 Oct 2025 | Viewed by 324 | Submission Open
Keywords: cosmology; primordial black holes; inflation; phase transitions in the early universe
(This special issue belongs to the Section Physics)
Biomolecular Structure and Interactions with Symmetry
edited by , Nazmus Sakib, Chen Zhao and
submission deadline 31 Oct 2025 | Viewed by 308 | Submission Open
Keywords: biomolecular symmetry; protein folding and stability; molecular dynamics; enzyme-substrate interactions; structural biology; molecular recognition; symmetry in drug design; crystallography; biomolecular interactions; computational biology; two-scale fractal in biomolecules
(This special issue belongs to the Section Life Sciences)
Biocatalysts and Symmetry
edited by and Qian Huang
submission deadline 31 Oct 2025 | Viewed by 289 | 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)
Neutrinos and Symmetry: Theoretical Developments and New Directions
edited by Davide Meloni and Alessio Giarnetti
submission deadline 31 Oct 2025 | Viewed by 286 | Submission Open
Keywords: neutrino masses; neutrino mixing; symmetries; new physics; model building
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Multi-Objective Optimization
edited by Chaoda Peng
submission deadline 31 Oct 2025 | 1 articles | Viewed by 268 | Submission Open
Keywords: multi-objective optimization; optimization algorithms; pareto front; evolutionary algorithms; stochastic problems; high-dimensional spaces; artificial intelligence; decision making
(This special issue belongs to the Section Computer)
Majorana Neutrinos and Matter-Antimatter Asymmetry: Status and Prospects of Double Beta Decay Search in Experiment and in Theory
edited by Shaobo Wang
submission deadline 31 Oct 2025 | Viewed by 266 | Submission Open
Keywords: Majorana neutrinos; neutrinoless double beta decay; matter and antimatter asymmetry; underground experiment
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry in Computer Vision Under Extreme Environments
edited by Peng Liu
submission deadline 31 Oct 2025 | Viewed by 241 | Submission Open
Keywords: underwater vision; object detection; tracking; and recognition; machine learning and deep learning; medical image processing and analysis; 3D vision and reconstruction; image enhancement; image restoration; pattern recognition; symmetry; asymmetry
(This special issue belongs to the Section Computer)
Computing with Words with Symmetry
edited by and Nadya Regina Galo
submission deadline 31 Oct 2025 | Viewed by 210 | Submission Open
Keywords: computing with words; fuzzy sets; intuitionistic fuzzy sets; 2-tuple fuzzy linguistic representation; hesitant fuzzy sets; grey systems; rough sets; soft sets; Z-numbers
(This special issue belongs to the Section Computer)
Data-Driven Intelligent Discovering and Symmetry: Theory, Method, and Security
edited by Puming Wang and Bin Yuan
submission deadline 31 Oct 2025 | Viewed by 199 | 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 31 Oct 2025 | Viewed by 197 | 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 in Energy Materials
edited by and Haoyu Li
submission deadline 31 Oct 2025 | Viewed by 174 | Submission Open
Keywords: energy storage and conversion; energy materials; electrocatalysis; solid oxide cells; H₂O and CO₂ electrolysis; symmetry; advanced characterization
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Sensing, Computing and Intelligence for Cyber–Physical Systems
edited by , and
submission deadline 31 Oct 2025 | Viewed by 169 | Submission Open
Keywords: cyber-physical systems; artificial intelligence; resillence; security control; symmetry; scalability; interoperability; optimization algorithms
(This special issue belongs to the Section Engineering and Materials)
Microphysics Meets Astrophysics: Understanding Dense Matter Through Compact Objects
edited by Ignacio Francisco Ranea-Sandoval and
submission deadline 31 Oct 2025 | Viewed by 94 | 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)
Symmetry/Asymmetry in Superconducting Quantum Computation
edited by Haozhi Wang and Parameshwar R. Pasnoori
submission deadline 31 Oct 2025 | Viewed by 65 | Submission Open
Keywords: superconducting qubits; coherence time; noise protection; qubit design; asymmetric gap; asymmetric SQUID; circuit optimization; Josephson junction
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Artificial Intelligence for Point Cloud Data Processing
edited by Wuyong Tao, and Yufu Zang
submission deadline 1 Nov 2025 | 1 articles | Viewed by 965 | Submission Open
Keywords: 3D object recognition; point cloud registration; virtual reality
(This special issue belongs to the Section Computer)
Theory and Applications of Special Functions II
edited by
submission deadline 15 Nov 2025 | 9 articles | Viewed by 17559 | Submission Open
(This special issue belongs to the Section Physics)
Applications Based on Symmetry in Cryptography and Information Security
edited by Yanwei Zhou
submission deadline 15 Nov 2025 | 1 articles | Viewed by 628 | Submission Open
Keywords: cryptographic protocols and secure communication systems; digital signatures and authentication methods; leakage-resilient cryptographic algorithms and their implementations; public-key encryption techniques and their security properties; cryptographic primitives for data integrity and authentication; functional encryption for secure data processing and analysis; security and privacy in cloud computing and big data analytics.
(This special issue belongs to the Section Computer)
Security Analysis of Symmetric and Asymmetric Cryptographic Implementations
edited by Hailong Zhang
submission deadline 15 Nov 2025 | Viewed by 189 | 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)
The Role of Temporal Influence in Discrete and Continuous Models: Symmetry and Beyond submission deadline 15 Nov 2025 | Viewed by 19 | Submission Open
Keywords: time-aware continuous models; temporal dynamism; discrete temporal patterns; temporal symmetry and asymmetry; multi-facet time-aware systems; the role of time in frameworks
(This special issue belongs to the Section Computer)
Gravitational Physics, Black Holes and Space–Time Symmetry
edited by Yassine Sekhmani and
submission deadline 28 Nov 2025 | Viewed by 84 | Submission Open
Keywords: black hole; neutron star; white dwarf; wormholes; general relativity solutions; alternative gravity theory solutions; quantum gravity theory solutions; space– time geometries and symmetries
(This special issue belongs to the Section Physics)
Nonlinear Science and Numerical Simulation with Symmetry submission deadline 30 Nov 2025 | 6 articles | Viewed by 10914 | Submission Open
Keywords: breathers; collapse; dynamical chaos; integrability; pattern formation; reaction– diffusion systems; rogue waves; shock waves; solitons; stability; topological dynamics; vortices; skyrmions; cardiac dynamics; biological applications
(This special issue belongs to the Section Mathematics)
Nonlinear Differential and Integral Equations and Their Infinite Systems submission deadline 30 Nov 2025 | 9 articles | Viewed by 9164 | Submission Open
Keywords: nonlinear differential equation; nonlinear integral equation; stability of solutions; asymptotic stability of solutions; asymptotic behaviour of solutions at infinity; infinite system of nonlinear differential equations; infinite system of nonlinear integral equations; sequence Banach space; compactness conditions
(This special issue belongs to the Section Mathematics)
Exploring Symmetry in Dual Quaternion Matrices and Matrix Equations
edited by
submission deadline 30 Nov 2025 | 6 articles | Viewed by 6215 | Submission Open
Keywords: dual quaternion matrices; matrix equations; matrix symmetry; symmetric matrices; orthogonal matrices; unitary matrices; matrix equations; Hermitian matrices; skew-symmetric matrices; Cayley transform; Lie groups and Lie algebras
(This special issue belongs to the Section Mathematics)
New Power System and Symmetry
edited by , Runjia Sun, and Jin Tan
submission deadline 30 Nov 2025 | 4 articles | Viewed by 5868 | Submission Open
Keywords: power systems; power electronics; symmetry; smart grid; renewable energies; energy storage; artificial intelligence technology; power system stability; signal processing
(This special issue belongs to the Section Engineering and Materials)
Active Particle Methods toward Modelling Living Systems
edited by
submission deadline 30 Nov 2025 | 3 articles | Viewed by 5809 | Submission Open
(This special issue belongs to the Section Life Sciences)
Symmetry/Asymmetry in Advanced Research for Efficient Electric Vehicles
edited by
submission deadline 30 Nov 2025 | 2 articles | Viewed by 5651 | Submission Open
Keywords: electric vehicles (xEVs); electric motor; battery; power electronics; HVAC; thermal management; energy management; energy storage; optimization; heating; cooling; symmetry; asymmetry
(This special issue belongs to the Section Computer)
Iterative Numerical Functional Analysis with Applications, 3rd Edition
edited by
submission deadline 30 Nov 2025 | 3 articles | Viewed by 5098 | Submission Open
(This special issue belongs to the Section Mathematics)
Security and Privacy Challenges in 5G Networks submission deadline 30 Nov 2025 | 3 articles | Viewed by 4351 | Submission Open
Keywords: 5G; security; privacy; cryptography; steganography; cloud service; IoT; 5G applications; forensics
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Nonlinear Systems submission deadline 30 Nov 2025 | 4 articles | Viewed by 3683 | Submission Open
Keywords: nonlinear systems; bilinear systems; control; identification; stability; backlash; hysteresis
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Cosmological Theories and Observations
edited by and Gansukh Tumurtushaa
submission deadline 30 Nov 2025 | 2 articles | Viewed by 3633 | Submission Open
Keywords: inflationary models and primordial symmetries; symmetry breaking in the early Universe; dark matter and dark energy models; cosmic microwave background radiation; gravitational waves and their implications for symmetry; galaxy formation and the large-scale structure of the Universe; baryogenesis and leptogenesis; symmetries in high-energy astrophysics; black holes and their symmetries; tests of fundamental symmetries using astronomical observations; symmetry principles in modified gravity theories; topological defects and cosmic strings; constraints on symmetry from cosmological data; symmetries in the evolution of the universe; role of symmetry in cosmological perturbations; asymmetry in cosmic baryon and lepton numbers; probing cosmological symmetries with next-generation observatories
(This special issue belongs to the Section Physics)
Model-Driven, Data-Driven and Symmetry Methods in Hyperspectral Image Processing
edited by Yong Chen and Yu-Bang Zheng
submission deadline 30 Nov 2025 | 2 articles | Viewed by 3141 | Submission Open
Keywords: remote sensing; multispectral/hyperspectral image processing; restoration; reconstruction; and fusion; saliency detection and anomaly detection; application in remote sensing; optimization modeling; machine learning and deep learning; symmetry
(This special issue belongs to the Section Computer)
Symmetry in Nonlinear Interaction of Femtosecond Laser Radiation with Matter
edited by , , Lanhai He and Xi Zhao
submission deadline 30 Nov 2025 | 1 articles | Viewed by 2318 | Submission Open
Keywords: space-time symmetry; strong-field physics; ultrafast spectroscopy; high harmonic generation; nonlinear interaction; time-resolved detection
(This special issue belongs to the Section Physics)
Internet of Things: Symmetry, Latest Advances and Prospects
edited by , Zhibin Gao, and
submission deadline 30 Nov 2025 | Viewed by 2129 | Submission Open
Keywords: internet of things; internet of vehicles; communication; computing and caching; artificial intelligence; symmetry application
(This special issue belongs to the Section Computer)
Bayesian Statistical Methods for Forecasting
edited by and Adriano K. Suzuki
submission deadline 30 Nov 2025 | 2 articles | Viewed by 1904 | Submission Open
Keywords: Bayesian inference; posterior analysis; Bayesian forecasting; Bayesian computational methods; credible intervals
(This special issue belongs to the Section Mathematics)
Symmetry and Lie Algebras
edited by María Alejandra Alvarez and María del Carmen Rodríguez-Vallarte
submission deadline 30 Nov 2025 | 3 articles | Viewed by 1819 | Submission Open
Keywords: algebraic computing structures; applied mathematics; cryptography; differential equations; differential geometry; mathematical physics; representation theory; supersymmetry; topology
(This special issue belongs to the Section Mathematics)
Advanced Materials, Structures, Symmetrical Design and Mechanism in Mechanical Engineering, 2nd Edition submission deadline 30 Nov 2025 | 2 articles | Viewed by 1790 | Submission Open
Keywords: symmetrical design; symmetrical mechanism; mechanical engineering; advanced materials
(This special issue belongs to the Section Engineering and Materials)
Applications Based on Symmetry in Applied Cryptography
edited by Yining Liu, , Yong Xie, Pengfei Zhang and Hongyuan Cheng
submission deadline 30 Nov 2025 | 3 articles | Viewed by 1590 | Submission Open
Keywords: advanced symmetric encryption algorithms; symmetric key management; security analysis; cryptographic hash functions; symmetry in blockchains
(This special issue belongs to the Section Computer)
Symmetry in Three-Phase Electrical Power Systems
edited by Jun Xie and Jianqiao Ma
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1399 | Submission Open
Keywords: new topology and geometry design; in-depth physical/chemical process study; novel modelling and computing theories and methods; design of new experiment and test result analysis; system/component/material research
(This special issue belongs to the Section Engineering and Materials)
Symmetries in Compact Stars and Advances in Gravitational Waves—Commemorating 50 Years of the Hulse-Taylor Pulsar
edited by , Kristen Lackeos and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1054 | Submission Open
Keywords: binary pulsars; compact stars; neutron stars; black holes; white dwarfs; gravitational waves; symmetry and asymmetry; equation of state of nuclear matter; fundamental physics; cosmology
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Neuromorphic and Intelligent Photonics
edited by and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1036 | Submission Open
Keywords: intelligent systems; neurophotonics; learning; symmetry and asymmetry of learning; recognition; artificial intelligence; neural plasticity; smart materials; content addressable memories; neuromorphic inspired computing; spiking neural network
(This special issue belongs to the Section Engineering and Materials)
Advances in Metal Materials and Symmetry/Asymmetry
edited by , Yong Hou and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 879 | Submission Open
Keywords: crystal symmetry; texture symmetry; mechanical symmetry; computational modeling; applications in engineering; nano-materials; structural integrity; phase transformation; functional materials
(This special issue belongs to the Section Physics)
Symmetry in Digitalisation of Distribution Power System
edited by Qiu Wei, Mengxiang Liu and Suhan Zhang
submission deadline 30 Nov 2025 | 2 articles | Viewed by 812 | Submission Open
Keywords: smart grids; distribution power systems; energy systems; modern power systems; cyber-physical power systems
(This special issue belongs to the Section Engineering and Materials)
Applications of Symmetry Three-Phase Electrical Power Systems submission deadline 30 Nov 2025 | 2 articles | Viewed by 755 | Submission Open
Keywords: overvoltage and short-current protections; transient analysis; data cybersecurity; machine learning; deep learning; metaheuristics
(This special issue belongs to the Section Engineering and Materials)
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