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 Machine Learning and Text Mining
edited by Abdelkrim El Mouatasim
submission deadline 31 Jul 2026 | Viewed by 319 | Submission Open
Keywords: symmetry; machine learning; text mining; invariance; equivariance; geometric deep learning; representation learning; natural language processing; pattern analysis
(This special issue belongs to the Section Computer)
Symmetry in Smart Materials and Structures
edited by
submission deadline 31 Jul 2026 | Viewed by 309 | Submission Open
Keywords: smart materials and structures; mechanics-based design; symmetry/asymmetry observation; mathematical modelling; numerical computation; simulation methods; symmetry/asymmetry analysis; engineering applications; sensors and actuators; nonlinear dynamics
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry: Principles and Applications in Smart Composite Structures
edited by and
submission deadline 31 Jul 2026 | Viewed by 281 | Submission Open
Keywords: symmetry and asymmetry; composite materials; structure design; advanced sensing; structural health monitoring; machine learning; multi-physics modeling
(This special issue belongs to the Section Engineering and Materials)
Symmetry Applied in Urban Water Resource Systems: Modeling, Control, and Optimization submission deadline 31 Jul 2026 | Viewed by 251 | Submission Open
Keywords: urban water resources; symmetry and asymmetry; groundwater quality; hydrogeochemistry; sustainable water management; urban water-related risks; urban water governance and policy; groundwater recharge; geomatics and GIS; remote sensing applications; machine learning in water resources; climate change and water
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry in Deep Learning for Computer Vision submission deadline 1 Aug 2026 | Viewed by 359 | Submission Open
Keywords: symmetry; asymmetry; deep learning; computer vision; medical imaging; precision agriculture; autonomous driving; industrial inspection; remote sensing; anomaly detection
(This special issue belongs to the Section Computer)
Symmetry in Computer Vision: Theory, Algorithms, and Applications
edited by and Ajita Rattani
submission deadline 2 Aug 2026 | Viewed by 423 | Submission Open
Keywords: symmetry in agriculture and satellite aperture ranging; sustainable and symmetric vision; secured symmetrical visual data in health care domain; transformer and neural networks
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Intelligent Image Processing: Optimization, Security, and Applications submission deadline 10 Aug 2026 | 1 articles | Viewed by 802 | Submission Open
Keywords: symmetry in image processing; metaheuristics in image processing; image security and authentication; intelligent embedded systems for visual applications; medical image diagnosis and symmetry analysis; optimization techniques for image reconstruction; pattern recognition in symmetric and asymmetric structures
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in Data Analysis
edited by Song Deng, Xiong Fu and
submission deadline 15 Aug 2026 | 7 articles | Viewed by 8195 | Submission Open
Keywords: data mining; machine learning; artificial intelligence; data analysis for industrial information; outlier identification; data distribution
(This special issue belongs to the Section Computer)
Symmetries and Symmetry-Breaking in Data Security, 2nd Edition
edited by Na Ren and
submission deadline 18 Aug 2026 | 1 articles | Viewed by 997 | Submission Open
Keywords: data security; digital watermark; data encryption; data transactions; privacy-preserving computation; attack and defense
(This special issue belongs to the Section Computer)
Symmetry and Nonlinear Control: Theory and Applications
edited by
submission deadline 26 Aug 2026 | 1 articles | Viewed by 659 | Submission Open
Keywords: symmetric control; nonlinear control; fault-tolerant control; event-triggered control; intelligent transportation control; intelligent agriculture robotics
(This special issue belongs to the Section Engineering and Materials)
Computing with Words with Symmetry
edited by and Nadya Regina Galo
submission deadline 30 Aug 2026 | 3 articles | Viewed by 2741 | 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)
Symmetry or Asymmetry in Machine Learning
edited by
submission deadline 31 Aug 2026 | 4 articles | Viewed by 30409 | Submission Open
Keywords: machine learning; deep learning; computational statistics; artificial intelligence; data mining
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Image Processing and Computer Vision
edited by and Shuo Yang
submission deadline 31 Aug 2026 | 9 articles | Viewed by 16498 | Submission Open
Keywords: image processing; computer vision; pattern recognition; object detection; image segmentation; deep learning; machine learning; convolutional neural network
(This special issue belongs to the Section Computer)
Symmetry in Mathematical Optimization Algorithm and Its Applications
edited by Zhe Sun
submission deadline 31 Aug 2026 | 12 articles | Viewed by 12232 | Submission Open
Keywords: combinatorial optimization; machine learning algorithm; heuristic algorithm; algorithm design; systems optimization and control; NP hard Problem optimization; parameter identification
(This special issue belongs to the Section Mathematics)
Symmetry and Asymmetry in Cyber Security, IoTs and Privacy
edited by Rodrigo Sanches Miani and
submission deadline 31 Aug 2026 | 2 articles | Viewed by 10600 | Submission Open
Keywords: cryptosystems; cryptographic protocols; communication and privacy; Internet of Things; attack–defense asymmetry; machine learning and cybersecurity; legal and ethical aspects of cybersecurity; cybersecurity policies
(This special issue belongs to the Section Computer)
Applications Based on Symmetry in Applied Cryptography
edited by Yining Liu, , Yong Xie, Pengfei Zhang and Hongyuan Cheng
submission deadline 31 Aug 2026 | 6 articles | Viewed by 9855 | 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/Asymmetry in Future Wireless Networks
edited by , and Han Xiao
submission deadline 31 Aug 2026 | 5 articles | Viewed by 7940 | Submission Open
Keywords: wireless networks; network architecture; network management; quality of service
(This special issue belongs to the Section Computer)
Iterative Numerical Functional Analysis with Applications, 3rd Edition
edited by
submission deadline 31 Aug 2026 | 3 articles | Viewed by 6909 | Submission Open
(This special issue belongs to the Section Mathematics)
Symmetry/Asymmetry in Intelligent Transportation
edited by and Wei Li
submission deadline 31 Aug 2026 | 6 articles | Viewed by 5251 | Submission Open
Keywords: pavement detection; road performance; traffic flow; traffic accident analysis; vehicle road collaboration
(This special issue belongs to the Section Computer)
The Symmetry of QCD Matter and Functional QCD Approaches
edited by Fei Gao and Yu-xin Liu
submission deadline 31 Aug 2026 | 1 articles | Viewed by 4897 | Submission Open
Keywords: QCD phase transition;; hadron spectrum and inside structure;; dynamical Chiral symmetry breaking;; deconfinement;; functional QCD approaches.
(This special issue belongs to the Section Physics)
Unlocking the Power of Probability and Statistics for Symmetry submission deadline 31 Aug 2026 | 4 articles | Viewed by 4695 | Submission Open
Keywords: artificial intelligence; bioinformatics; machine learning; multivariate analysis; probability; statistics; stochastic modeling; symmetry
(This special issue belongs to the Section Mathematics)
Symmetry in Computational and Mathematical Methods in Fractional Calculus, Second Edition submission deadline 31 Aug 2026 | 2 articles | Viewed by 4206 | Submission Open
Keywords: fractional calculus; computational methods; mathematical methods; mathematical modeling
(This special issue belongs to the Section Mathematics)
Symmetry in Power System Dynamics and Control
edited by , and Abraham Efraim Rodríguez-Mata
submission deadline 31 Aug 2026 | 2 articles | Viewed by 4074 | Submission Open
Keywords: modern power system control and integration; microgrid control, design, and applications; power converter design and control; design and application of advanced and intelligent controls; fault-tolerant control; modern power system operations under fault conditions
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Its Application in Fluid Mechanics
edited by Zhenyu Ouyang, Fangyang Yuan and Chundong Xue
submission deadline 31 Aug 2026 | 2 articles | Viewed by 3094 | Submission Open
Keywords: multiphase flows; microfluidics; nanofluidics; droplets; bubbles; active material; soft material; multicomponent; particle manipulation; artificial intelligence
(This special issue belongs to the Section Physics)
Advanced Technologies in Electrical and Electronic Engineering, 4th Edition submission deadline 31 Aug 2026 | 5 articles | Viewed by 3015 | Submission Open
Keywords: renewable energy integration; power system symmetric operation; three-phase asymmetry
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Multiphase Flow Modeling
edited by and
submission deadline 31 Aug 2026 | 1 articles | Viewed by 2870 | Submission Open
Keywords: gas–liquid two-phase flow; liquid–liquid two-phase flow; gas–liquid-solid multiphase flow; CFD; DEM-CFD; artificial intelligence algorithm; application in material processing
(This special issue belongs to the Section Physics)
Symmetry in Metamaterials, Composite Structures, and Lattice Structures
edited by Shengjie Zhao, and Zhaohua Wang
submission deadline 31 Aug 2026 | 1 articles | Viewed by 2643 | Submission Open
Keywords: metamaterials; lattice structures; composite structures; periodic structures; design optimization; computer-aided design; additive manufacturing; computational modeling
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Wireless Communications and Signal Processing
edited by and Dhanushka Priyankara Kudathanthirige
submission deadline 31 Aug 2026 | Viewed by 2538 | Submission Open
Keywords: symmetric and asymmetric wireless networks; MIMO and beamforming optimization; adaptive resource allocation; spectrum sharing and coexistence; machine learning for wireless networks; full-duplex communication; interference management strategies; security and privacy in wireless systems; signal processing for asymmetric channels; heterogeneous network optimization
(This special issue belongs to the Section Computer)
Symmetry in Fault Detection, Diagnosis, and Prognostics submission deadline 31 Aug 2026 | 2 articles | Viewed by 2380 | 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)
Stability and Bifurcation in Discrete Dynamical Systems: Application to Population Dynamics
edited by
submission deadline 31 Aug 2026 | 2 articles | Viewed by 2318 | 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 in Control Systems: Theory, Design, and Application
edited by Yongfeng Lv and
submission deadline 31 Aug 2026 | 4 articles | Viewed by 2243 | Submission Open
Keywords: symmetry in control; geometric mechanics; lie groups and algebras; nonlinear control systems; optimal control; adaptive control; networked systems; motion planning and control; hamiltonian systems; distributed control
(This special issue belongs to the Section Engineering and Materials)
Symmetries in Algebraic Combinatorics and Their Applications submission deadline 31 Aug 2026 | 3 articles | Viewed by 2192 | Submission Open
Keywords: Cayley graph; binary tree; Dyck path; Christoffel word; integer frieze; integer partition; nilpotent graph; prime graph; polygon triangulation; poset; snake graph; braid representation; Dynkin algebra; cluster algebra; Lie algebra; matrix problem; poset representation; quiver representation; Thompson’s group
(This special issue belongs to the Section Mathematics)
Symmetry and Quantum Chromodynamics
edited by , Heribertus Bayu Hartanto and Jesus Javier Cobos-Martinez
submission deadline 31 Aug 2026 | 2 articles | Viewed by 2173 | Submission Open
Keywords: color confinement and SCSB; hadron structure; gluon saturation; non-perturbative QCD; QCD under extreme condition; QCD beyond standard model
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Multi-Objective Optimization
edited by Chaoda Peng
submission deadline 31 Aug 2026 | 1 articles | Viewed by 2129 | 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)
Skewed (Asymmetrical) Probability Distributions and Applications Across Disciplines, 5th Edition submission deadline 31 Aug 2026 | 4 articles | Viewed by 1947 | Submission Open
Keywords: skewed distributions; non-normal distributions; parameter estimation; statistical modelling; stochastic processes; numerical methods
(This special issue belongs to the Section Mathematics)
Symmetry and Asymmetry in Image Classification submission deadline 31 Aug 2026 | 1 articles | Viewed by 1676 | Submission Open
Keywords: symmetry; image processing; data science; artificial intelligent; biomedical engineering; machine learning; symmetric algorithms; visual data analysis; symmetric patterns; patterns analysis
(This special issue belongs to the Section Computer)
Symmetry in Integrable Systems: Topics and Advances (Second Edition)
edited by
submission deadline 31 Aug 2026 | 4 articles | Viewed by 1491 | Submission Open
Keywords: symmetries; conservation laws; solitons; integrable systems; breathers; rogue waves; hirota bilinear method; darboux transformation; other miscellaneous applications of nonlinear integrable systems
(This special issue belongs to the Section Mathematics)
Symmetry in Digital Signal Processing: Toward Smart Embedded Applications submission deadline 31 Aug 2026 | 1 articles | Viewed by 1455 | Submission Open
Keywords: embedded signal processing; machine learning in embedded systems; real-time data acquisition; biomedical signal processing; time–frequency analysis; environmental monitoring; sustainability applications; precision agriculture; seismic signal processing; autonomous systems
(This special issue belongs to the Section Computer)
Symmetry in Optimization: From Algorithmic Design to Applications submission deadline 31 Aug 2026 | 3 articles | Viewed by 1441 | Submission Open
Keywords: symmetry in optimization; optimization algorithms; symmetry reduction; symmetry breaking; metaheuristic optimization; evolutionary algorithms; invariant optimization; computational optimization; large-scale optimization
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Numerical Analysis and Scientific Computing submission deadline 31 Aug 2026 | 1 articles | Viewed by 1333 | Submission Open
Keywords: numerical analysis; parallel computing; symmetry in algorithms; asymmetry in computing; load balancing; GPU computing; multi-GPU systems; heterogeneous computing; high-performance computing (HPC); OpenMP; SYCL; OpenACC; MPI; hybrid parallel programming; performance optimization; scalability in parallel systems; task scheduling; algorithm efficiency; computational workload distribution; resource allocation
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in the Numerical Study of Heat Transfer and Fluid Flow
edited by
submission deadline 31 Aug 2026 | 1 articles | Viewed by 1310 | Submission Open
Keywords: heat transfer; fluid flow; numerical study; thermal performance
(This special issue belongs to the Section Physics)
Symmetry in Fluid Mechanics
edited by
submission deadline 31 Aug 2026 | 1 articles | Viewed by 904 | Submission Open
Keywords: nonlinear dynamics; fluid mechanics; theoretical and experimental advances; applications; symmetry and asymmetry
(This special issue belongs to the Section Physics)
Modified Gravity: Exploring Black Holes, Compact Objects, Wormholes, and Beyond
edited by , Daris Samart and Supakchai Ponglertsakul
submission deadline 31 Aug 2026 | Viewed by 802 | Submission Open
Keywords: modified theories of gravity; black holes; compact objects; wormholes
(This special issue belongs to the Section Physics)
Symmetry in Statistical Physics and Nonlinear Phenomena submission deadline 31 Aug 2026 | 1 articles | Viewed by 771 | Submission Open
Keywords: phase transition; networks; opinion dynamics; non-equilibrium; Ising model
(This special issue belongs to the Section Physics)
Symmetries in Differential Equations and Application—3rd Edition
edited by
submission deadline 31 Aug 2026 | 1 articles | Viewed by 714 | Submission Open
Keywords: differential equation; symmetry; pseudo-differential operator; numerical analysis; approximation; a priori estimates; stability; asymptotic properties; numerical verification method; dynamical systems; quantum calculus; special functions
(This special issue belongs to the Section Mathematics)
Quantum Synchronization of Oscillators and Qubits
edited by
submission deadline 31 Aug 2026 | Viewed by 663 | Submission Open
Keywords: synchronization; quantum synchronization; quantum symmetry; superradiance; quantum optics; entanglement
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry in Machine Learning: 2nd Edition
edited by Qinwei Fan, and
submission deadline 31 Aug 2026 | 1 articles | Viewed by 660 | Submission Open
Keywords: machine learning; deep learning; convolutional neural networks; spiking neural network; recurrent neural networks; graph neural network; long short-term memory; extreme learning machine; generative adversarial networks; reinforcement learning; clustering analysis; computer vision; natural language processing; time series analysis; model-based clustering modeling high-dimensional
(This special issue belongs to the Section Computer)
Symmetries in Mechatronics and Robotics
edited by , and Wei Tang
submission deadline 31 Aug 2026 | 1 articles | Viewed by 564 | Submission Open
Keywords: symmetries relations in robotics; symmetry mechatronic system design; robotic kinematics and dynamics; symmetry-based control methods
(This special issue belongs to the Section Engineering and Materials)
Symmetry Applications in Robotics: Current Advances submission deadline 31 Aug 2026 | Viewed by 520 | Submission Open
Keywords: symmetry in robotics; robot kinematics and dynamics; geometric control and lie group methods; motion planning and trajectory optimization; parallel and hybrid manipulators; swarm and multi-robot systems; topological and group-theoretic approaches in robotics; symmetry in perception and sensor design; legged locomotion and dynamic symmetry; systematic and symmetry-based robot design; machine learning and data-driven symmetry discovery
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Artificial Intelligence with Application
edited by Yoshihiro Maruyama
submission deadline 31 Aug 2026 | Viewed by 508 | Submission Open
Keywords: geometric deep learning; equivariant and invariant learning; representation learning; graph and network symmetries; algebraic and categorical methods in AI; physics-informed and scientific AI; applications of symmetry/asymmetry in real-world systems; symmetry in artificial intelligence; asymmetry in artificial intelligence; symmetry breaking in machine learning
(This special issue belongs to the Section Computer)
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