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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Cyber-Physical Power System and Symmetry Analysis
edited by Huifeng Zhang, and
submission deadline 31 Jan 2025 | Viewed by 103 | Submission Open
Keywords: symmetry; power systems; renewable energy systems; topology; smart grids; electrical signals
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Nonlinear Dynamics
edited by Chaoran Liu, and Guobiao Hu
submission deadline 31 Jan 2025 | Viewed by 97 | Submission Open
Keywords: Nonlinear Dynamics; Dynamical System; Symmetry
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Researches of Neutron Stars and Black Holes
edited by Mihaela Parvu and Ionel Lazanu
submission deadline 31 Jan 2025 | Viewed by 95 | Submission Open
Keywords: cosmology; neutron stars; black holes; astrophysics; gravitational waves; stellar evolution; relativity; quantum gravity; compact objects; high-energy astrophysics
(This special issue belongs to the Section Physics)
Asymmetric and Symmetric Studies in Nanotechnology
edited by , Chenghao Deng, Yongpeng Zhao and
submission deadline 31 Jan 2025 | Viewed by 92 | Submission Open
Keywords: chiral optics; nanotechnology; asymmetry; symmetry; optical phenomena
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry Study in Object Detection
edited by Vladimir Brtka, Dragan Kukolj, Dragan M. Samardžija and
submission deadline 31 Jan 2025 | Viewed by 87 | Submission Open
Keywords: object detection; symmetry; asymmetry; computer vision; machine learning; pattern recognition; geometric properties; autonomous systems; robotics; medical imaging 
(This special issue belongs to the Section Computer)
Trends and Prospects of Asymmetric and Symmetric Studies on Algorithms Optimizations
edited by and Jelena Misic
submission deadline 31 Jan 2025 | Viewed by 72 | Submission Open
Keywords: symmetry; process optimization; optimization methods; machine learning; algorithm efficiency; model robustness; solution quality; interdisciplinary; economy; social activity; medicine; engineering
(This special issue belongs to the Section Computer)
Application of Symmetry in Quantum Field Theory
edited by Huan Chen and Wei Dai
submission deadline 31 Jan 2025 | Viewed by 72 | Submission Open
Keywords: effective field theories of QCD; chiral symmetry and axial Ward identity; dynamic chiral symmetry breaking; explicit chiral symmetry breaking in QCD; color confinement; color superconductivity; phase transition of chiral symmetry restoration; phase transition of confinement and deconfinement; QGP phase transition
(This special issue belongs to the Section Physics)
New Higgs-Like States
edited by and Kai-Feng Chen
submission deadline 31 Jan 2025 | Viewed by 70 | Submission Open
Keywords: particles and fields; Higgs boson; electroweak interactions; spontaneous symmetrybreaking; quantum chromodynamics; quark and lepton masses and mixing; models beyond the standard model; experimental methods and instrumentation for elementary-particle and nuclear physics; data analysis; extensions of Higgs sector; Higgs-like states; phase transitions; Higgs mode; top quark; cosmology; superconductivity
(This special issue belongs to the Section Physics)
Symmetry/Asymmetry in Additive Manufacturing
edited by Jinliang Zhang and Wenchao Ke
submission deadline 31 Jan 2025 | Viewed by 67 | 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)
Asymmetric and Symmetric Studies in Biostatistics
edited by Nicolò Navarin, Pietro Bongini, and Edmondo Trentin
submission deadline 31 Jan 2025 | Viewed by 48 | Submission Open
Keywords: biostatistics; data distributions; AI-enhanced bioinformatics
(This special issue belongs to the Section Life Sciences)
Graph Theory and Its Applications II
edited by Domenico Labbate
submission deadline 31 Jan 2025 | Viewed by 40 | Submission Open
Keywords: graphs; symmetric configurations; automorphism groups; matchings; adjacency matrices; cages
(This special issue belongs to the Section Mathematics)
Geometric Function Theory and Special Functions II
edited by
submission deadline 14 Feb 2025 | 5 articles | Viewed by 4374 | Submission Open
Keywords: conformal mapping theory; differential subordinations and superordinations; entire and meromorphic functions; fractional calculus with applications; general theory of univalent and multivalent functions; harmonic functions; quasiconformal mappings; special functions and applications
(This special issue belongs to the Section Mathematics)
Advances in Dynamics, Planning and Control of Spacecraft and Related Systems
edited by , , Yunhua Wu, Yan Xiao and
submission deadline 15 Feb 2025 | 1 articles | Viewed by 1379 | Submission Open
Keywords: mega-constellation modelling; satellite task planning; satellite swarm control; ground system design; spacecraft simulation; deep space mission
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry in Medicinal Chemistry
edited by
submission deadline 28 Feb 2025 | 6 articles | Viewed by 13488 | Submission Open
Keywords: Chirality; Drugs; Natural compounds; Synthesis; Analysis; Pharmacophore; Targets; In silico/in vitro/in vivo studies; Asymmetry in nanosciences; Legislation and guidelines; Chemical biology
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Aspects of Particle Physics and High Energy Physics- Dedicated to Zhengdao Li's 95 Anniversary submission deadline 28 Feb 2025 | 7 articles | Viewed by 9652 | Submission Open
(This special issue belongs to the Section Physics)
Communication Engineering and Symmetry: Frontiers, Trends, and Challenges
edited by
submission deadline 28 Feb 2025 | 5 articles | Viewed by 8591 | Submission Open
Keywords: communications; antennas and propagation; signal processing; Internet of Things; artificial intelligence
(This special issue belongs to the Section Computer)
Symmetry or Asymmetry in Machine Learning
edited by
submission deadline 28 Feb 2025 | 3 articles | Viewed by 7432 | Submission Open
Keywords: machine learning; deep learning; computational statistics; artificial intelligence; data mining
(This special issue belongs to the Section Computer)
Advanced Studies of Symmetry/Asymmetry in Cybersecurity
edited by Konglin Zhu and Pengcheng Wang
submission deadline 28 Feb 2025 | 4 articles | Viewed by 6275 | Submission Open
(This special issue belongs to the Section Computer)
Symmetry in Graph Algorithms and Graph Theory III
edited by
submission deadline 28 Feb 2025 | 6 articles | Viewed by 5595 | Submission Open
(This special issue belongs to the Section Computer)
Symmetry and Its Applications in Experimental Fluid Mechanics submission deadline 28 Feb 2025 | 5 articles | Viewed by 5092 | Submission Open
Keywords: Symmetric flow phenomena; Axisymmetric vortex; Vortex of symmetry; Symmetric flow field; Symmetric flow pattern; Symmetric interface; Flow visualization; Particle image velocimetry (PIV); Multiphase flow; Droplets/bubbles; experimental fluid mechanics; flow visualization; microgravity fluid physics; vortex; microfluidics; particle image velocimetry (PIV); multiphase flow; interface flow; laminar flow; flow stability; droplets/bubbles
(This special issue belongs to the Section Physics)
Symmetry in Computing Algorithms and Applications
edited by Lei Yue and
submission deadline 28 Feb 2025 | 4 articles | Viewed by 4647 | Submission Open
Keywords: symmetries of complex manufacturing systems; Artificial Intelligence (AI) in production scheduling; fuzzy computing; data analytics for manufacturing; cloud computing for manufacturing; predictive maintenance; real-time monitoring and control; supply chain optimization; computing applications; smart decision support for industry
(This special issue belongs to the Section Computer)
Algebraic Systems, Models and Applications submission deadline 28 Feb 2025 | 3 articles | Viewed by 4025 | Submission Open
Keywords: algebraic systems; positive solutions; existence; uniqueness; fixed point theorems; iterative methods; approximate solutions; numerical methods; applications to boundary value problems; dirichlet problems; difference equations; image analysis; collocation; kernel-based approximation
(This special issue belongs to the Section Mathematics)
New Advances in Symmetric Cryptography
edited by Xiaoyang Dong
submission deadline 28 Feb 2025 | 3 articles | Viewed by 3644 | Submission Open
Keywords: block cipher; stream cipher; hash function; message authentication codes; authenticated encryption; cryptanalysis
(This special issue belongs to the Section Computer)
Research in Special Functions
edited by and
submission deadline 28 Feb 2025 | 3 articles | Viewed by 3522 | Submission Open
Keywords: special functions; hyperfunction; q-special functions; special functions of fractional calculus; group theoretical approach to special functions; harmonic analysis; special functions of number theory; generalized hypergeometric function; special functions of several variables; generalized fractional integrals and fractional derivatives
(This special issue belongs to the Section Mathematics)
Symmetry in Mathematical Theory and Simulation Methods for Backward Problems
edited by
submission deadline 28 Feb 2025 | 2 articles | Viewed by 2601 | Submission Open
Keywords: backward problems; inverse problems; numerical analysis; mathematical modeling; fractional problems; ordinary/partial differential equations; meshless methods; applications; symmetry operators
(This special issue belongs to the Section Mathematics)
Applications Based on Symmetry/Asymmetry in Functional Data Analysis
edited by Nengxiang Ling
submission deadline 28 Feb 2025 | 2 articles | Viewed by 2588 | Submission Open
(This special issue belongs to the Section Mathematics)
Symmetry Applications in Uncertain Differential Equations
edited by Anshui Li, Waichon Lio and Baoding Liu
submission deadline 28 Feb 2025 | 3 articles | Viewed by 2330 | Submission Open
Keywords: uncertain differential equation; uncertain statistics; uncertainty theory; uncertain finance; symmetry; uncertain process; uncertain renewal process; uncertain calculus
(This special issue belongs to the Section Mathematics)
Dynamics at Nanoscale: Linear and Nonlinear Studies
edited by Thierry Verbiest, and Sébastien R. Mouchet
submission deadline 28 Feb 2025 | 1 articles | Viewed by 1130 | Submission Open
Keywords: nonlinear nano-optics; nanophotonics; biophotonics; plasmonics; nonlinear optics; quantum plasmonics
(This special issue belongs to the Section Physics)
Trends and Prospects in Image Processing with Symmetry/Asymmetry
edited by Zaidao Wen and Guanying Huo
submission deadline 28 Feb 2025 | Viewed by 437 | Submission Open
Keywords: symmetry detection; symmetric patterns; asymmetry analysis; image segmentation; image recognition; texture synthesis; object detection; anomaly detection; scene understanding; medical image analysis; visual perception; algorithms; computer vision; robotics; aesthetics; pattern recognition; image enhancement; feature extraction; image manipulation; visual symmetry
(This special issue belongs to the Section Computer)
Symmetry in Advanced Materials and Nanotechnology
edited by Yuhao Li
submission deadline 28 Feb 2025 | Viewed by 276 | Submission Open
Keywords: symmetry breaking; graphene; moiré superlattices; flexoelectricity; ferroelectricity; atomic force microscopy; strain engineering; electrochemical property; multi-field coupling; mechanical behavior
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Robust Chaos and Chaotification–Theory and Applications submission deadline 28 Feb 2025 | Viewed by 268 | Submission Open
Keywords: robust chaos; chaotification; S-unimodal maps; hidden attractors; AI methods in modeling chaotic systems; symmetric features (phase diagrams; equilibria; antimonotonicity); chaos applications; chaos symmetric encryption; machine learning techniques for cryptanalysis of chaotic encryption; chaos path planning; chaos PRBG
Asymmetric Supercapacitors and Electrode Materials
edited by
submission deadline 28 Feb 2025 | Viewed by 262 | Submission Open
Keywords: electrode materials; energy storage; supercapacitors; capacitor desalination; NiZn battery; micro-/device
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Advances in Neural Network/Deep Learning and Symmetry/Asymmetry
edited by Roberto Celio Limao de Oliveira, José Alfredo F. Costa, Rafael Stubs Parpinelli and Eduardo F. Simas Filho
submission deadline 28 Feb 2025 | Viewed by 221 | Submission Open
Keywords: applicable neural networks theory; augmented intelligence; computer vision and image processing; deep learning; deep learning applications; ethical deep learning; explainable deep learning; generative adversarial network; generative pre-trained transformer; hybrid intelligent systems; large language models; neural networks; neuro-fuzzy systems; symmetry/asymmetry; prediction analysis; supervised and unsupervised learning methods; transfer learning; trustworthy deep learning
(This special issue belongs to the Section Computer)
Intelligent Energy Harvesting Technologies and Symmetry: Recent Advances and Applications
edited by Mohammed Bait-Suwailam
submission deadline 28 Feb 2025 | Viewed by 200 | Submission Open
Keywords: absorbers; Artificial Intelligence; electromagnetic energy harvesting; symmetric energy harvesting; IoT; UAVs
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Asymmetry in Mechanical Engineering
edited by and Bin Dong
submission deadline 28 Feb 2025 | Viewed by 180 | Submission Open
Keywords: group theory; circulant matrix; model reduction; parity– time symmetry; tensegrity structures; mistuning; symmetry-breaking bifurcation
(This special issue belongs to the Section Engineering and Materials)
Symmetry/Asymmetry in Artificial Intelligence for Healthcare Applications
edited by Yonggang Zhang, Hangyu Li and
submission deadline 28 Feb 2025 | Viewed by 176 | Submission Open
Keywords: artificial intelligence; healthcare; symmetry; brain tumour diagnosis; autism spectrum disorders; multimodal models for disease diagnosis; personalized medicine
(This special issue belongs to the Section Computer)
Symmetry in Optoelectronic Information Technology and Imaging
edited by Linfei Chen
submission deadline 28 Feb 2025 | Viewed by 173 | Submission Open
Keywords: image encoding; information security; computational imaging; imaging quality; running speed; symmetry; asymmetry
(This special issue belongs to the Section Computer)
Neutrinos and Symmetry: Theoretical Developments and New Directions
edited by Davide Meloni and Alessio Giarnetti
submission deadline 28 Feb 2025 | Viewed by 110 | Submission Open
Keywords: neutrino masses; neutrino mixing; symmetries; new physics; model building
(This special issue belongs to the Section Physics)
Symmetries/Asymmetries in Neurorehabilitation
edited by
submission deadline 28 Feb 2025 | Viewed by 90 | 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)
Symmetry Studies in Applied Numerical Methods
edited by
submission deadline 28 Feb 2025 | Viewed by 78 | Submission Open
Keywords: symmetry; numerical methods; computational algorithms; efficiency; precision; robustness; wavelet theory; fluid dynamics; material science; computational physics; fractals; mathematical physics; theoretical breakthroughs; frame theory
(This special issue belongs to the Section Mathematics)
Symmetry/Asymmetry Study in Object Detection
edited by , Hayretdin Bahşi, Robert Kopal, and Nikola Protrka
submission deadline 28 Feb 2025 | Viewed by 75 | Submission Open
Keywords: object detection; symmetry; asymmetry; computer vision; machine learning; algorithm optimization; feature analysis; detection accuracy; pattern recognition; image processing; computational geometry; artificial intelligence; deep learning; detection performance; visual perception; case studies; experimental results; real-world applications; geometric features; algorithm evaluation
(This special issue belongs to the Section Computer)
Symmetry in Solving NP-Hard Problems
edited by Luka Fürst and Uroš Čibej
submission deadline 28 Feb 2025 | Viewed by 55 | Submission Open
Keywords: symmetry; NP-hard problems; NP-complete problems; combinatorial optimization; graph theory; complete search; dynamic programming; metaheuristics; evolutionary algorithms
(This special issue belongs to the Section Computer)
Biocatalysts and Symmetry
edited by and Qian Huang
submission deadline 28 Feb 2025 | Viewed by 48 | 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)
Advances in Metal Materials and Symmetry/Asymmetry
edited by , Yong Hou and
submission deadline 28 Feb 2025 | Viewed by 47 | 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)
Matter and Antimatter Asymmetry in Cosmology and Particle Physics
edited by Luiz Garcia De Andrade and Zhifu Gao
submission deadline 28 Feb 2025 | Viewed by 43 | Submission Open
Keywords: cosmology; particle physics; modified gravity; pulsar astronomy; matter and antimatter; loop quantum gravity
(This special issue belongs to the Section Physics)
Symmetry-Based Properties in Two-Dimensional Materials submission deadline 28 Feb 2025 | Viewed by 42 | Submission Open
Keywords: two-dimensional materials; time-reversal symmetry; inversion symmetry; mirror symmetry; topological states; optical properties; mechanical properties
(This special issue belongs to the Section Engineering and Materials)
Symmetry or Asymmetry in Signal/Image Processing, Pattern Recognition, and Microwave/Millimeter-Wave Technologies
edited by and Yiming Yu
submission deadline 28 Feb 2025 | Viewed by 37 | Submission Open
Keywords: signal processing; image processing; pattern recognition; machine learning; microwave/millimeter-wave technologies
(This special issue belongs to the Section Computer)
Symmetry in Fractional Derivatives, Fractional Equations and Fractional Order Systems
edited by Xiaoling Han and Chenghua Gao
submission deadline 28 Feb 2025 | Viewed by 31 | Submission Open
Keywords: fractional differential equations; delay differential equations; functional equations; partial differential equations; stochastic differential equations; integral equations; dynamical systems; applications of fixed-point theorems to nonlinear equations
(This special issue belongs to the Section Mathematics)
Symmetry and Asymmetry in Object Detection, Object Tracking, and Behaviour Understanding
edited by Mohamed Naiel, and Yuhao Chen
submission deadline 28 Feb 2025 | Viewed by 26 | Submission Open
Keywords: object detection; pose estimation; multi-object tracking; object tracking; behaviour recognition; action recognition; activity recognition
(This special issue belongs to the Section Computer)
Studies of Symmetry in Applied Numerical Methods
edited by and Rimantas Barauskas
submission deadline 28 Feb 2025 | Viewed by 22 | Submission Open
Keywords: solving systems of linear equations; solving nonlinear equations; solving differential equations; numerical integration and differentiation; interpolation and approximation; finding eigenvalues and eigenvectors; finite difference method; finite element method; semi-analytical finite elements; mechanical engineering; chemical engineering; electrical engineering; signal and image processing
(This special issue belongs to the Section Computer)
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