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 polices 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 Communications Engineering Ⅱ submission deadline 30 Nov 2024 | 3 articles | Viewed by 8447 | Submission Open
(This special issue belongs to the Section Computer)
Symmetry in Finite Element Modeling and Mechanics submission deadline 30 Nov 2024 | 5 articles | Viewed by 7873 | Submission Open
Keywords: theoretical and computational mechanics; finite element modeling; damage and fracture mechanics; geometric modeling; numerical methods; continuum mechanics; boundary conditions
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Aerospace Sciences and Applications
edited by Xi Xia and Yi Gao
submission deadline 30 Nov 2024 | 6 articles | Viewed by 7395 | Submission Open
Keywords: fluid dynamics; gas dynamics; aerodynamics; combustion; propulsion; flow control; autonomous systems
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Operations Research
edited by Yunfei Fang and Peng Wu
submission deadline 30 Nov 2024 | 7 articles | Viewed by 6838 | Submission Open
Keywords: supply chains management; production scheduling; routing optimization; transportation planning; intelligent manufacturing; operation management; optimization algorithm; mixed-integer programming
(This special issue belongs to the Section Computer)
Three-Dimensional Dynamical Systems and Symmetry submission deadline 30 Nov 2024 | 4 articles | Viewed by 6180 | Submission Open
Keywords: mathematical models; continuous-time dynamical systems; discrete-time dynamical systems; time-delay dynamical systems; piecewise dynamical systems; fractional-order dynamical systems; symmetries; integrability; controllability; stability; special orbits (periodic orbits and limit cycles; homoclinic and heteroclinic orbits); bifurcations; chaotic behavior; numerical methods; numerical simulations
(This special issue belongs to the Section Mathematics)
Special Functions, Integral Transforms and Polynomial Sequences in Real World with Symmetry submission deadline 30 Nov 2024 | 6 articles | Viewed by 5656 | Submission Open
(This special issue belongs to the Section Mathematics)
Asymmetric Centers in Optically Active Molecules Containing a Heteroatom submission deadline 30 Nov 2024 | 2 articles | Viewed by 5585 | Submission Open
Keywords: organometallic syntheses; heteroatomic asymmetry center; P-stereogenic center; asymmetric syntheses; enantioselective syntheses; resolution of racemates; optically active ligands; chiral P-ligands; homogeneous catalysis; transition metal complexes; chiral auxiliaries; chiral catalysts
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Application of Symmetry in Equations
edited by Jin Zhang, Wenlei Li and
submission deadline 30 Nov 2024 | 5 articles | Viewed by 4644 | Submission Open
Keywords: lie group; galois group; symmetry; generalized symmetry; rotational symmetry; first integral; integrability; hamiltonian system; dynamical system
(This special issue belongs to the Section Mathematics)
Symmetry in Thermal Fluid Sciences and Energy Applications
edited by Nattan Roberto Caetano
submission deadline 30 Nov 2024 | 2 articles | Viewed by 4233 | Submission Open
Keywords: thermal and fluid science; energy production and use; fuels and combustion; diagnostic techniques of measurement; analysis for decision making in industry
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Motor Control, Drives and Power Electronics
edited by and Qiang Tan
submission deadline 30 Nov 2024 | 1 articles | Viewed by 3633 | Submission Open
Keywords: motor; control; drive; power electronics; magnetic levitation; position detection; parameter identification
(This special issue belongs to the Section Computer)
Mechanics of Heterogeneous Solids and Structures submission deadline 30 Nov 2024 | 2 articles | Viewed by 3497 | Submission Open
(This special issue belongs to the Section Mathematics)
Application of Symmetry in Biomechanics
edited by , Saša Đurić and Vedrana Sember
submission deadline 30 Nov 2024 | 3 articles | Viewed by 3086 | Submission Open
Keywords: biomechanical symmetry; sports science; injury prevention and rehabilitation; performance optimization; biomechanical analysis
(This special issue belongs to the Section Life Sciences)
Applications of Symmetry in Computational Biology
edited by Siqi Liang and Siwei Chen
submission deadline 30 Nov 2024 | 2 articles | Viewed by 3044 | Submission Open
Keywords: symmetry; asymmetry; computational biology; macromolecular structure; drug discovery; genomics; developmental biology; group theory; network dynamics; computational neuroscience; synthetic biology
(This special issue belongs to the Section Life Sciences)
Cold Atom Physics and Precision Measurements
edited by , Xiaofei Zhang and Chaofei Liu
submission deadline 30 Nov 2024 | 1 articles | Viewed by 3030 | Submission Open
Keywords: cold atoms; cold molecules; ultracold atoms; many-body quantum physics; precision measurements
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Neural Networks
edited by Yufeng Tian and
submission deadline 30 Nov 2024 | 3 articles | Viewed by 2993 | Submission Open
Keywords: neural network model; stability analysis of neural networks; state estimation on neural networks; neural networks and deep learning; neural networks and their applications in robotics
(This special issue belongs to the Section Computer)
Symmetry in Intelligent Algorithms
edited by Hongwei Kang and Xinping Sun
submission deadline 30 Nov 2024 | 3 articles | Viewed by 2779 | Submission Open
Keywords: swarm intelligence; evolutionary computation; machine learning; behavioral symmetry; spatial symmetry; genetic algorithms; particle swarm optimization; ant colony optimization; artificial bee colony; genetic programming; differential evolution; neural networks; group-equivariant neural networks; symmetry in neural architectures; fitness evaluation; hybrid algorithms; natural language processing; text analysis; bioinformatics; environmental modeling; optimization problems; algorithm performance; scalability; convergence analysis; diversity in algorithms; hybrid approaches; real-world applications; symmetry
(This special issue belongs to the Section Computer)
Strongly Interacting Matter at Extreme Conditions—the Role of Symmetry Energy in Nuclear Physics and Astrophysics
edited by Odilon Lourenço, and Mariana Dutra
submission deadline 30 Nov 2024 | 2 articles | Viewed by 2638 | Submission Open
Keywords: equations of state; nuclear matter in extreme conditions; neutron stars; quark stars; hybrid stars; high-energy astrophysics; computational simulations; nuclear structure; magnetized stellar matter
(This special issue belongs to the Section Physics)
Symmetry and New Advances in Unconventional Superconductors
edited by and
submission deadline 30 Nov 2024 | 1 articles | Viewed by 2629 | Submission Open
Keywords: unconventional superconductors; phase diagram; material synthesis; collective fluctuations; quantum criticality; competing orders
(This special issue belongs to the Section Physics)
Exploring Symmetry in Dual Quaternion Matrices and Matrix Equations
edited by
submission deadline 30 Nov 2024 | 4 articles | Viewed by 2290 | 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)
Experimental Tests of Fundamental Symmetries in Particle Physics
edited by Giulia Brunetti and Marta Torti
submission deadline 30 Nov 2024 | 2 articles | Viewed by 2224 | Submission Open
(This special issue belongs to the Section Physics)
Symmetry in Ordinary and Partial Differential Equations and Applications II
edited by
submission deadline 30 Nov 2024 | 1 articles | Viewed by 2220 | Submission Open
Keywords: difference equations; flow invariance; nonlinear regularity theory; ordinary differential equations; partial differential equations; reduction methods; symmetry operators; weak symmetries
(This special issue belongs to the Section Mathematics)
Symmetry/Asymmetry and Novel Nanomaterials: Preparation, Characterizations, and Applications submission deadline 30 Nov 2024 | 1 articles | Viewed by 2122 | Submission Open
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Integrable Systems: Topics and Advances
edited by
submission deadline 30 Nov 2024 | 2 articles | Viewed by 2114 | Submission Open
(This special issue belongs to the Section Mathematics)
Applications of Symmetry/Asymmetry in Information Technology
edited by
submission deadline 30 Nov 2024 | 1 articles | Viewed by 1804 | Submission Open
Keywords: symmetry; asymmetry; Internet of Things (IoT); big data; heuristic and metaheuristic; information technology
(This special issue belongs to the Section Computer)
Symmetry in Reliability Engineering
edited by , Cun Shi and Xiaoyu Cui
submission deadline 30 Nov 2024 | 2 articles | Viewed by 1661 | Submission Open
Keywords: prognostics and health management; failure mechanism analysis; degradation modeling; reliability estimation; fault-tolerant control; fault diagnosis; health management; network reliability analysis; maintenance strategy; digital twins
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Nonlinear Studies II
edited by
submission deadline 30 Nov 2024 | 1 articles | Viewed by 1447 | Submission Open
Keywords: control systems; biological systems; epidemic models; fractional calculus; dynamic systems; stability
(This special issue belongs to the Section Mathematics)
Symmetry in Data Sciences and Machine Learning for Multidisciplinary Research submission deadline 30 Nov 2024 | 1 articles | Viewed by 1227 | Submission Open
Keywords: symmetry; asymmetry; data analysis; machine learning; data mining; fault diagnosis; spiking neural networks; swarm intelligence; data distribution
(This special issue belongs to the Section Computer)
Applications Based on Symmetry/Asymmetry in Machine Learning
edited by Masoud Barati, Ahmad Zareie and Vahid Seydi
submission deadline 30 Nov 2024 | 1 articles | Viewed by 1189 | Submission Open
Keywords: machine learning; federated learning; blockchain technology; data representation and modelling; data classification; anomaly detection; security
(This special issue belongs to the Section Computer)
Symmetry in Optimization and Control with Real World Applications II
edited by
submission deadline 30 Nov 2024 | 1 articles | Viewed by 1169 | Submission Open
Keywords: optimization; optimal control; dynamical system; complex system; symmetry
(This special issue belongs to the Section Computer)
Recent Advances in Mathematical Aspect in Engineering—Second Edition
edited by , , , Zhiping Zhang and
submission deadline 30 Nov 2024 | 1 articles | Viewed by 1048 | Submission Open
Keywords: fluid mechanics; optimization; energy; heat transfer; steady and unsteady flow problems; porosity; nanofluids; particle shape effects; multiphase flow; thermodynamics; magnetohydrodynamics; electromagnetic; physiological fluid phenomena  in biological systems; peristaltic; blood flow; symmetry
(This special issue belongs to the Section Mathematics)
Symmetry in Cosmological Theories and Observations
edited by and Gansukh Tumurtushaa
submission deadline 30 Nov 2024 | 1 articles | Viewed by 986 | 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)
Symmetry-Related Quantum Phases in Exciton-Polariton Condensates
edited by Zhaoxin Liang
submission deadline 30 Nov 2024 | 1 articles | Viewed by 890 | Submission Open
Keywords: polariton Bose-Einstein condensate; driven-dissipative Gross-Pitaevskii equation; superfluidity; SU(2) or SU(1; 1) symmetry
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Manufacturing and Machining of Advanced Materials
edited by and Zibin Wu
submission deadline 30 Nov 2024 | 1 articles | Viewed by 635 | Submission Open
Keywords: casting; spray forming; additive manufacturing; semi-solid forming; extrusion; forging; rolling; drawing; bending; welding; solidification; heat treatment; plastic deformation; surface treatment; symmetry; asymmetry
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Ferromagnetic Materials
edited by Senfu Zhang
submission deadline 30 Nov 2024 | Viewed by 513 | Submission Open
Keywords: symmetry; ferromagnetic materials; symmetry breaking; magnetic multilayers; magnetic domains; domain wall; topological spin texture; Dzyaloshinskii– Moriya interaction; phase transitions; spintronics
(This special issue belongs to the Section Physics)
Recent Advances in Electromagnetism: Topics, Advances and Applications
edited by Seddik Bri
submission deadline 30 Nov 2024 | Viewed by 372 | Submission Open
Keywords: numerical electromagnetics  ; electromagnetic devices  ; electromagnetic theory; novel smart materials; bioelectromagnetics; antenna design; graphene nanoribbons; multi-wall nanotubes; electromagnetic nanoparticles; mathematical modeling; disorders and defects in nanomaterials; dielectric properties; polarization
(This special issue belongs to the Section Engineering and Materials)
Application of Image Processing with Symmetry/Asymmetry
edited by Jiashan Cui, and Ju Huo
submission deadline 30 Nov 2024 | Viewed by 314 | Submission Open
Keywords: image process; machine learning; machine vision
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Thermal Management
edited by Zengguang Sui and Dongxing Song
submission deadline 30 Nov 2024 | Viewed by 207 | Submission Open
Keywords: thermal management; heat dissipation; passive cooling; active cooling; advanced materials; thermal interface materials; fluid dynamics; thermodynamics; symmetric/asymmetric design
(This special issue belongs to the Section Engineering and Materials)
New Developments of Algorithms Optimization with Symmetry/Asymmetry
edited by Fangyuan Li, , Yanni Wan and Yongxiang Zhang
submission deadline 30 Nov 2024 | Viewed by 207 | Submission Open
Keywords: symmetrical design principles and methodologies for machinery coordination and integration; symmetry-based approaches for enhancing the performance and efficiency of power electronic systems in machinery; utilization of symmetry properties in advanced control strategies for improved motion coordination and precision; symmetry-driven fault detection; diagnosis; and fault-tolerant control in machinery systems; control and optimization techniques leveraging symmetry to enhance the overall performance and reliability of machinery and power electronic systems; case studies and real-world applications showcasing the practical implementation and benefits of symmetry in machinery coordination and power electronic systems
(This special issue belongs to the Section Engineering and Materials)
Advances in Cybersecurity, Blockchain and Symmetry/Asymmetry
edited by Lu Zhou
submission deadline 30 Nov 2024 | Viewed by 207 | Submission Open
Keywords: cryptographic primitives; symmetry/asymmetry encryption; privacy protection; homomorphic encryption; digital signature; blockchain techniques; blockchain sharding; smart contracts; blockchain consensus mechanisms
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Evolutionary Algorithms
edited by Enrique Naredo and
submission deadline 30 Nov 2024 | Viewed by 168 | 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)
Advances in Chemical Engineering with Symmetry/Asymmetry: A Focus on Clean Processes and Bio-Waste Valorization submission deadline 30 Nov 2024 | Viewed by 163 | Submission Open
Keywords: symmetry; chemical engineering; bio-waste valorization; clean processes; optimization; multiphysics modeling; efficiency systems; sustainability; exergetic analysis; numerical simulation
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Challenges and New Trends in Optimization and Control Theory in the Era of AI: Analysis, Modelling, and Symmetrical Mathematical Methods submission deadline 1 Dec 2024 | 2 articles | Viewed by 2082 | 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 Asymmetry: Shaping the Future of Power Grids
edited by Arturo R. Messina
submission deadline 1 Dec 2024 | Viewed by 175 | 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)
Chemistry Using the Symmetry of Crystals
edited by
submission deadline 15 Dec 2024 | 1 articles | Viewed by 1199 | Submission Open
Keywords: crystallography; structural chemistry; crystal structure; symmetry; space group; chirality
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Evolutionary Computation, Metaheuristics, Nature-Inspired Algorithms, and Symmetry
edited by , and Yang Yu
submission deadline 30 Dec 2024 | 5 articles | Viewed by 5111 | Submission Open
Keywords: evolutionary computation; metaheuristics; nature-inspired algorithms; single-objective optimization; multi-objective optimization; real-world engineering application; intelligent systems; Artificial Intelligence
(This special issue belongs to the Section Computer)
Symmetric or Asymmetric Distributions and Its Applications
edited by Xuelong Hu
submission deadline 30 Dec 2024 | 5 articles | Viewed by 4664 | Submission Open
Keywords: symmetric or asymmetric distributions; univariate distributions; multivariate distributions
(This special issue belongs to the Section Mathematics)
Recent Developments on Fuzzy Sets Extensions
edited by
submission deadline 31 Dec 2024 | 17 articles | Viewed by 22849 | Submission Open
(This special issue belongs to the Section Mathematics)
Symmetry and Asymmetry in Machine Learning
edited by Qinwei Fan, and
submission deadline 31 Dec 2024 | 5 articles | Viewed by 20052 | 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)
Image Processing and Symmetry: Topics and Applications
edited by Jun Xu
submission deadline 31 Dec 2024 | 11 articles | Viewed by 19062 | Submission Open
Keywords: image processing; deep learning; lightweight network; super resolution; image denoising; image deblurring
(This special issue belongs to the Section Computer)
Symmetry in Computational Intelligence and Applications submission deadline 31 Dec 2024 | 3 articles | Viewed by 18833 | Submission Open
(This special issue belongs to the Section Computer)
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