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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Theory and Applications of Special Functions II
edited by
submission deadline 15 Nov 2025 | 9 articles | Viewed by 20817 | Submission Open
(This special issue belongs to the Section Physics)
Symmetry in Mechanical Engineering: Properties and Applications
edited by , Kun Xu and
submission deadline 30 Nov 2025 | 11 articles | Viewed by 28821 | Submission Open
Keywords: mechanical engineering; symmetric structure; asymmetric structure; mechanical design; machining; MEMS; structural reliability; thermal management; mass transfer; topology optimization
(This special issue belongs to the Section Engineering and Materials)
Nonlinear Science and Numerical Simulation with Symmetry submission deadline 30 Nov 2025 | 6 articles | Viewed by 13526 | 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 | 11 articles | Viewed by 12698 | 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 | 7 articles | Viewed by 8364 | 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 | 5 articles | Viewed by 7652 | 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)
Symmetry/Asymmetry in Advanced Research for Efficient Electric Vehicles
edited by
submission deadline 30 Nov 2025 | 2 articles | Viewed by 7358 | 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)
Active Particle Methods toward Modelling Living Systems
edited by
submission deadline 30 Nov 2025 | 3 articles | Viewed by 6769 | Submission Open
(This special issue belongs to the Section Life Sciences)
Iterative Numerical Functional Analysis with Applications, 3rd Edition
edited by
submission deadline 30 Nov 2025 | 3 articles | Viewed by 5727 | Submission Open
(This special issue belongs to the Section Mathematics)
Symmetry in Cosmological Theories and Observations
edited by and Gansukh Tumurtushaa
submission deadline 30 Nov 2025 | 2 articles | Viewed by 5380 | 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)
Advanced Materials, Structures, Symmetrical Design and Mechanism in Mechanical Engineering, 2nd Edition submission deadline 30 Nov 2025 | 5 articles | Viewed by 5096 | Submission Open
Keywords: symmetrical design; symmetrical mechanism; mechanical engineering; advanced materials
(This special issue belongs to the Section Engineering and Materials)
Security and Privacy Challenges in 5G Networks submission deadline 30 Nov 2025 | 3 articles | Viewed by 5024 | 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 4874 | Submission Open
Keywords: nonlinear systems; bilinear systems; control; identification; stability; backlash; hysteresis
(This special issue belongs to the Section Engineering and Materials)
Deep Learning and Deep Learning Synergy of Transformers and Symmetry in Small Object Detection and Tracking
edited by Fengping An, and Chuyang Ye
submission deadline 30 Nov 2025 | 1 articles | Viewed by 3839 | Submission Open
Keywords: deep learning; image processing; object recognition; artificial intelligence
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 3820 | 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)
Bayesian Statistical Methods for Forecasting
edited by and Adriano K. Suzuki
submission deadline 30 Nov 2025 | 3 articles | Viewed by 2598 | Submission Open
Keywords: Bayesian inference; posterior analysis; Bayesian forecasting; Bayesian computational methods; credible intervals
(This special issue belongs to the Section Mathematics)
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 2595 | 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)
Advances in Biomechanics and Sport Sciences: Exploring Symmetry and Asymmetry in Human Movement submission deadline 30 Nov 2025 | 1 articles | Viewed by 2521 | Submission Open
Keywords: human motion analysis; biomechanics; sports performance; physical activity; muscular asymmetry; motor control; injury prevention; exercise physiology; asymmetry of kinetics and kinematics; movement disorders
(This special issue belongs to the Section Life Sciences)
Symmetry in Digitalisation of Distribution Power System
edited by Wei Qiu, Mengxiang Liu and Suhan Zhang
submission deadline 30 Nov 2025 | 4 articles | Viewed by 2348 | 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)
Internet of Things: Symmetry, Latest Advances and Prospects
edited by , Zhibin Gao, and
submission deadline 30 Nov 2025 | Viewed by 2337 | 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)
Symmetry in Three-Phase Electrical Power Systems
edited by Jun Xie and Jianqiao Ma
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1972 | 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)
Scheduling, Planning, Decision and Games in Intelligent Dynamic Robotics
edited by , Zhiguo Shi, Yulian Jiang and
submission deadline 30 Nov 2025 | 2 articles | Viewed by 1867 | Submission Open
Keywords: symmetric robotics; sensing and control; information fusion; data analysis; Bayesian optimization; stochastic operations; game theory; reinforcement learning; neural networks; task allocation; trajectory planning; swarm intelligence; multi-agent system; ground-based mobile robots; unmanned aerial vehicles; flying robots; space robots; submarine robots; deep space exploration vehicles; navigation; guidance and control
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Neuromorphic and Intelligent Photonics
edited by and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1638 | 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)
Symmetry in Stochastic Models for Machine Learning Applications: Theoretical Insights and Applications
edited by , Renata Avros and Dvora Toledano-Kitai
submission deadline 30 Nov 2025 | 2 articles | Viewed by 1534 | Submission Open
Keywords: symmetry; probability theory; stochastic processes; statistical distributions; pattern recognition; data analysis; clustering; optimization techniques; artificial intelligence; machine learning; deep learning; dynamic systems; symmetry-aware algorithms; symmetry-based optimization; symmetry-preserving transformations; symmetry-induced regularization; statistical modeling
(This special issue belongs to the Section Computer)
Advances in Metal Materials and Symmetry/Asymmetry
edited by , Yong Hou and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1432 | 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)
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 1304 | 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 in Deep Learning Networks and Its Applications in the Real World
edited by , Zhuang Li and
submission deadline 30 Nov 2025 | 3 articles | Viewed by 1281 | Submission Open
Keywords: deep learning; symmetry in engineering problems; deep learning networks with symmetrical structure; optimization of deep neural networks; optimization methods in engineering; design of deep neural networks; the application of deep learning in engineering
(This special issue belongs to the Section Computer)
Advances of Asymmetry/Symmetry in High Energy Physics
edited by , and Paulo José Ferreira Porfírio da Silva
submission deadline 30 Nov 2025 | 1 articles | Viewed by 943 | Submission Open
Keywords: anomalies in QFT; supersymmetry; baryogenesis; spontaneous and explicit symmetry breaking; Lorentz and CPT violation; space-time symmetries; renormalization and symmetries; standard model extension
(This special issue belongs to the Section Physics)
Symmetry in Graphene and Nanomaterials
edited by Jie Wang and Xiaodong Xia
submission deadline 30 Nov 2025 | 1 articles | Viewed by 871 | Submission Open
Keywords: graphene; mechanical property; electrical property; nanocomposites; interfacial effect; agglomeration; percolation threshold
(This special issue belongs to the Section Engineering and Materials)
Power Supply-Demand Asymmetry and Power Quality Issues in High-Renewable Energy Power Systems
edited by and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 804 | Submission Open
Keywords: voltage sag; harmonic responsibility; harmonic power; supraharmonic; integrated energy system; power quality data; power flow analysis; interference modeling; power quality analysis; multi-energy flow coupling; hydrogen storage characteristics; electric carbon market
(This special issue belongs to the Section Engineering and Materials)
Symmetries in Quantum Control and Quantum Error Correction and Their Applications: 100 Years of Quantum Mechanics Developments
edited by Marco Enríquez, and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 759 | Submission Open
Keywords: quantum dynamics control; control and geometry of quantum states; symmetries in quantum optics; control and quantum error correction in quantum communication; control in quantum error mitigation; methods of quantum dynamics solving to impose quantum control; control on quantum systems in condensed matter; quantum indefiniteness; quantum entanglement control; geometric phases in quantum systems; algebraic methods in quantum mechanics; mathematical foundations on quantum control
(This special issue belongs to the Section Physics)
Symmetry and Wireless Communication Technologies
edited by Yun-Peng Lyu, Feng Huang and Qianwen Liu
submission deadline 30 Nov 2025 | 1 articles | Viewed by 713 | Submission Open
Keywords: wireless communication system; microwave/millimeter-wave components and circuits; antenna technology; electromagnetic metasurface; 6G wireless communications
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Control System and Dynamical System
edited by
submission deadline 30 Nov 2025 | Viewed by 610 | Submission Open
(This special issue belongs to the Section Computer)
Symmetry and Asymmetry in IoT Security
edited by Yue Zhang and Shan Wang
submission deadline 30 Nov 2025 | Viewed by 586 | Submission Open
Keywords: IoT system; security; symmetric encryption; asymmetric decryption; data privacy
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Additive Manufacturing
edited by Jinliang Zhang and Wenchao Ke
submission deadline 30 Nov 2025 | Viewed by 564 | Submission Open
Keywords: symmetry; asymmetry; additive manufacturing; material development; structure design; process optimization; manufacturing system
(This special issue belongs to the Section Engineering and Materials)
Symmetry Breaking in Nonlinear Mechanics submission deadline 30 Nov 2025 | Viewed by 372 | Submission Open
Keywords: symmetry/asymmetry systems; chaos and bifurcation analyses; nonlinear dynamics and vibrations; discrete and continuous systems; metamaterial and meta-structures; nonlinear phenomena and complex systems
(This special issue belongs to the Section Engineering and Materials)
Applications Based on Symmetry in Condensed Matter Physics
edited by Jiansong Pan, Tao Yu and Wenyuan Liu
submission deadline 30 Nov 2025 | Viewed by 345 | Submission Open
Keywords: symmetry breaking; phase transition; topological materials; magnetism; computational methods; material design
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry in Dynamical Systems
edited by Eduardo Campos Mercado, Jesús Guerrero Tavares and Víctor Moreno Oliva
submission deadline 30 Nov 2025 | Viewed by 285 | Submission Open
Keywords: mathematical modeling; power converter systems; wind energy; control theory; control algorithms; robotics; nonlinear systems; optical techniques; optical instrumentation; solar energy
(This special issue belongs to the Section Mathematics)
Symmetry/Asymmetry in Wireless Communications and Signal Processing
edited by and Dhanushka Priyankara Kudathanthirige
submission deadline 30 Nov 2025 | Viewed by 250 | 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 and Asymmetry in Research and Innovation on the Internet of Things
edited by and Ponciano Jorge Escamilla-Ambrosio
submission deadline 30 Nov 2025 | Viewed by 199 | Submission Open
Keywords: network security; mathematical models; symmetric and asymmetric cryptography; mobile and web applications; trust management; cryptanalysis; decentralized technologies
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Autonomous Robotics submission deadline 30 Nov 2025 | Viewed by 191 | Submission Open
Keywords: symmetry in robotics; asymmetry in autonomous systems; robotic locomotion and manipulation; motion planning algorithms; sensor placement optimization; perception of autonomous robots; control strategies for robotics; machine learning in robotics; human– robot interaction; adaptive robotic design
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Composite Materials and Its Applications
edited by Long Chen
submission deadline 30 Nov 2025 | Viewed by 170 | Submission Open
Keywords: composite materials; multiscale simulation analysis for composite materials; design of composite materials; functional composite materials; fiber-reinforced polymers; optimization design
(This special issue belongs to the Section Engineering and Materials)
Challenges and New Trends in Optimization and Control Theory in the Era of AI: Analysis, Modelling, and Symmetrical Mathematical Methods submission deadline 1 Dec 2025 | 2 articles | Viewed by 4774 | Submission Open
Keywords: symmetric methods for solving fractional and ordinary differential equations; fractals and fractional calculus; PDE: deterministic; stochastic; and fuzzy; symmetrical/asymmetrical models in biomathematics; symmetry analysis and methods; optimization; control theory; AI and ML
(This special issue belongs to the Section Computer)
Symmetry and the Nanoscale: Matter and Mind - Mathematical Modeling and Phenomenology
edited by
submission deadline 1 Dec 2025 | 2 articles | Viewed by 3133 | Submission Open
Keywords: Symmetry; Principles of symmetry; Discrete symmetries; Matter; Mind; Consciousness; Nanoscale; Nanophysics; Nanostructures; Mathematical modeling; Multiscale methods; Nano-neuroscience; Quantum effects; Relativistic effects; Entropic effects; Synchronicity; Phenomenology; Space; Time; Space-time; Holism
(This special issue belongs to the Section Physics)
Unlocking the Power of Probability and Statistics for Symmetry submission deadline 1 Dec 2025 | 2 articles | Viewed by 1895 | Submission Open
Keywords: artificial intelligence; bioinformatics; machine learning; multivariate analysis; probability; statistics; stochastic modeling; symmetry
(This special issue belongs to the Section Mathematics)
Modern Trends of Lorentz Symmetry and Lorentz Violation II
edited by
submission deadline 1 Dec 2025 | Viewed by 452 | Submission Open
Keywords: tests of relativity; Lorentz symmetry; Lorentz violation; quantum gravity; physical kinematics; CPT symmetry; very special relativity; standard Model Extension
(This special issue belongs to the Section Physics)
Symmetry and Asymmetry: Shaping the Future of Power Grids
edited by Arturo R. Messina
submission deadline 1 Dec 2025 | Viewed by 443 | Submission Open
Keywords: controllability and observability; grid stability; power grids; power system dynamics; symmetry/asymmetry; re-silient grid infrastructure; risk assessment; robustness
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Computer Network Design: Innovations in Security and Communication
edited by Peyman Teymoori and Toktam Ramezanifarkhani
submission deadline 15 Dec 2025 | Viewed by 350 | Submission Open
Keywords: symmetrical and recursive network architecture design principles; security-by-design frameworks in network architectures/protocols; symmetry applications in 6G and IoT networks; Recursive InterNetwork Architecture (RINA) and its security implications; symmetrical topologies for enhancing fault tolerance and resilience; algorithmic approaches to symmetrical network configurations and optimization
(This special issue belongs to the Section Computer)
Symmetry-Driven Artificial Intelligence for Logistics and Operations
edited by Asmaa Benghabrit and
submission deadline 30 Dec 2025 | Viewed by 246 | Submission Open
Keywords: supply chains; neural networks; artificial intelligence; predictive analytics; logistic
(This special issue belongs to the Section Computer)
Simulation and Modelling in Natural Sciences, Biomedicine and Engineering III
edited by
submission deadline 31 Dec 2025 | 11 articles | Viewed by 39662 | Submission Open
(This special issue belongs to the Section Mathematics)
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