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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Fixed Point Theory and Its Applications Dedicated to the Memory of Professor William Arthur Kirk submission deadline 30 Sep 2024 | 16 articles | Viewed by 17173 | Submission Open
Keywords: symmetry analysis; symmetry/asymmetry phenomena; symmetry nonlinear system; complete metric space; contractive mapping; symmetry and fixed point; iterate; nonexpansive mapping; set-valued mapping
(This special issue belongs to the Section Mathematics)
Individual Differences in Behavioral and Neural Lateralization submission deadline 30 Sep 2024 | 5 articles | Viewed by 15592 | Submission Open
Keywords: behavioral lateralization; neural lateralization; individual differences; mental disorders; atypical lateralization; handedness; motor asymmetries; perceptual and attentional asymmetries; sex; age; personality; sexual orientation; cognitive performance; genetics
(This special issue belongs to the Section Life Sciences)
The Dark Universe: The Harbinger of a Major Discovery
edited by
submission deadline 30 Sep 2024 | 8 articles | Viewed by 12661 | Submission Open
Keywords: Dark matter; ; Dark energy; ; Dark matter streams; ; Cosmic rays; ; Matter antimatter asymmetry; ; Cosmology; Models; ; Dark Universe; ; Symmetry;   ; axion; ; WIMP; ; Beyond SM physics; ; Direct dark matter signatures; ; Astrophysical dark matter signatures; ; Detection techniques; ; Cosmological constant; ; Variable physics constants; ; Gravitation;
(This special issue belongs to the Section Physics)
Nonlinear Analysis and Its Applications in Symmetry II submission deadline 30 Sep 2024 | 10 articles | Viewed by 11298 | Submission Open
Keywords: symmetry analysis; symmetry/asymmetry phenomena; symmetry nonlinear system; symmetry and fixed point; complete metric space; contractive mapping; iterate; nonexpansive mapping; set-valued mapping
(This special issue belongs to the Section Mathematics)
Nonparametric Statistics and Biostatistical Methods
edited by , , Georg Johannes Zimmermann and
submission deadline 30 Sep 2024 | 4 articles | Viewed by 9383 | Submission Open
Keywords: Nonparametric methods; Ranking procedures; Bootstrap procedures; Survival analysis; Permutation methods; Statistical; Inference; Regression analysis
(This special issue belongs to the Section Life Sciences)
100 Years of Quantum Matter Waves: Celebrating the Work of Louis De Broglie
edited by
submission deadline 30 Sep 2024 | 6 articles | Viewed by 8923 | Submission Open
Keywords: quantum matter waves; quantum mechanics; quantum foundations; hydrodynamical; mechanical; nonlinear wave equations
(This special issue belongs to the Section Physics)
Fluctuating Asymmetry in Ungulates submission deadline 30 Sep 2024 | 4 articles | Viewed by 8631 | Submission Open
Keywords: Anthropization Effect; Behavioral Parameters; Body Characteristics; Ecological Context; Developmental Instability; Environment; Fitness; Fluctuating Asymmetry; Ungulates; Stress
(This special issue belongs to the Section Life Sciences)
Advanced Technologies in Electrical and Electronic Engineering, 3rd Edition submission deadline 30 Sep 2024 | 7 articles | Viewed by 8197 | Submission Open
Keywords: Asymmetrical Fault Characteristics Analysis; Three-phase imbalance analysis
(This special issue belongs to the Section Engineering and Materials)
Symmetry-Based Biomedical Image Processing
edited by
submission deadline 30 Sep 2024 | 1 articles | Viewed by 7472 | Submission Open
Keywords: machine learning; artificial intelligence; orthodontics; orthognathic surgery; symmetry/asymmetry; computed tomography; cognition; perception; ergonomical balance; mutual information; bilateral symmetry
(This special issue belongs to the Section Life Sciences)
Asymmetric and Symmetric Study with PDE
edited by Zivorad Tomovski and
submission deadline 30 Sep 2024 | 3 articles | Viewed by 6993 | Submission Open
(This special issue belongs to the Section Mathematics)
Symmetry and Neutrino Physics: Theory and Experiments
edited by Antonia Di Crescenzo and
submission deadline 30 Sep 2024 | 5 articles | Viewed by 6363 | Submission Open
Keywords: neutrino mixing and oscillations; neutrino masses; majorana neutrinos; solar neutrinos; tmospheric neutrinos; reactor neutrinos; accelerator neutrinos; geoneutrinos; neutrinos in cosmology; astrophysical neutrinos; cosmic neutrino background
(This special issue belongs to the Section Physics)
Selected Papers Symmetry 2023—The Fourth Edition of the International Conference on Symmetry submission deadline 30 Sep 2024 | 5 articles | Viewed by 6208 | Submission Open
Symmetry in Classical and Quantum Gravity and Field Theory
edited by
submission deadline 30 Sep 2024 | 4 articles | Viewed by 5895 | Submission Open
Keywords: classical and quantum gravity; quantum field theory; symmetry and group theory; classical and quantum cosmology; classical and quantum black holes lie groups; diffeomorphisms; constrained and gauge systems; path integral and BRST quantization
(This special issue belongs to the Section Physics)
Machine Learning and Data Analysis II
edited by
submission deadline 30 Sep 2024 | 5 articles | Viewed by 5423 | Submission Open
Keywords: machine learning; data analysis; process modelling; time series prediction
(This special issue belongs to the Section Computer)
Topological Aspects of Quantum Gravity and Quantum Information Theory
edited by and
submission deadline 30 Sep 2024 | 2 articles | Viewed by 5108 | Submission Open
Keywords: quantum gravity; quantum information; entanglement; black holes; information paradox; ER=EPR conjecture; model building; condensed matter physics; topological phase transitions; AdS/CFT correspondence
(This special issue belongs to the Section Physics)
Symmetry in Geometric Mechanics and Mathematical Physics
edited by and Narciso Román-Roy
submission deadline 30 Sep 2024 | 3 articles | Viewed by 4983 | Submission Open
Keywords: particle mechanics; control systems; continuum mechanics; Lie groups; mathematical physics; Lie algebras
(This special issue belongs to the Section Physics)
Symmetry Applied in Computer Vision, Automation, and Robotics
edited by Dawei Li, and Xin Cai
submission deadline 30 Sep 2024 | 5 articles | Viewed by 4844 | Submission Open
Keywords: symmetry phenomenon and theory; symmetry-based applications; dynamical systems; optimization; optimal control; model predictive control; learning-based control; learning-based modelling; robot design and morphology; multi-robot systems; robot manipulation and grasping; motion planning; robot mapping and localization; computer vision; image processing; pattern analysis and machine learning; deep learning
(This special issue belongs to the Section Computer)
Symmetry in Combinatorics and Discrete Mathematics
edited by
submission deadline 30 Sep 2024 | 4 articles | Viewed by 4761 | Submission Open
Keywords: infinite or finite groups; semigroups; designs and configurations; enumerative combinatorics; determinants and permanents; combinatorial sequences
(This special issue belongs to the Section Mathematics)
Security, Communication and Privacy in Internet of Things: Symmetry and Advances — Volume II
edited by
submission deadline 30 Sep 2024 | 3 articles | Viewed by 4168 | Submission Open
Keywords: artificial intelligence; information security; communication and privacy; multimedia processing; Internet of Things; symmetry application; intellectual property
(This special issue belongs to the Section Computer)
Restoration of Broken Symmetries in the Nuclear Many-Body Problem
edited by Javid Sheikh and Peter Ring
submission deadline 30 Sep 2024 | 3 articles | Viewed by 3932 | Submission Open
Keywords: mean-field models; spontaneous symmetry breaking; symmetry restoration methods; rotational; isospin; and gauge symmetries; unbound systems; projection methods in the continuum
(This special issue belongs to the Section Physics)
Asymmetric and Symmetric Study on Algorithms Optimization
edited by and Valdecy Pereira
submission deadline 30 Sep 2024 | 2 articles | Viewed by 3814 | Submission Open
Keywords: symmetric algorithms; balanced optimization; equally efficient solutions; resource distribution; fairness; parallel computing; load balancing; task scheduling; homogeneous components; optimal performance
(This special issue belongs to the Section Computer)
Symmetries in Gravity Research: Classical and Quantum
edited by Carlos Frajuca and Nadja Simão Magalhães
submission deadline 30 Sep 2024 | 3 articles | Viewed by 3623 | Submission Open
Keywords: symmetries; symmetries in gravitation; symmetries in quantum gravity; preserving properties in gravitation; symmetries in general relativity
(This special issue belongs to the Section Physics)
Symmetry in Differential Geometry and Geometric Analysis
edited by Yongshun Liang, and
submission deadline 30 Sep 2024 | 3 articles | Viewed by 3529 | Submission Open
Keywords: symmetries in fractal geometry; symmetries in geometric analysis; fractal dimension; graphs of fractal functions; fractal curves; fractal surfaces; fractal interpolation; fractal function approximation; dynamical systems; iterated function systems; fractal sets; self-similar sets; self-affine sets; Lipschitz equivalence; topological structures; multifractals analysis; geometric analysis; geometric measure theory; number theory; diophantine approximation; fractional calculus; fractional differential equations; numerical analysis in fractals; fractals in nature; applications of fractals; e.g.; in physics; statistics; geology; material science; quantization theory; signal processing; computer image processing; pattern recognition
(This special issue belongs to the Section Mathematics)
Symmetry and Asymmetry in Nature: From Quantum Physics to the Universe submission deadline 30 Sep 2024 | 3 articles | Viewed by 3216 | Submission Open
Keywords: symmetry; supersymmetry; cosmological constant; string theory; rotating galaxies; gravitational waves; superfluid; electrodynamics; hydrodynamics; quantum physics; vortex; ripple; turbulence; viscosity; quantum ether; bifurcation; spiral waves; complexity; entropy; chaos; edge of chaos; quality; intermittency; interferometry; water; exclusion zone; hydrogen; Grotthuss mechanism; gap junctions; connexin; memristor; consciousness; brain; thalamus; hippocampus; neuron; epilepsy; seizure
(This special issue belongs to the Section Physics)
The Symmetry/Asymmetry Phenomenon in the Fault Diagnosis Process of Industrial Machinery
edited by Gang Yu and
submission deadline 30 Sep 2024 | 3 articles | Viewed by 3161 | Submission Open
Keywords: symmetry/asymmetry; vibration signal processing; machinery diagnostics and prognostics; machinery monitoring; early fault diagnosis
(This special issue belongs to the Section Engineering and Materials)
Supersymmetry and Supersymmetric Field Theories
edited by
submission deadline 30 Sep 2024 | 2 articles | Viewed by 3087 | Submission Open
Keywords: supergravity; superconformal field theories; supersymmetric objects; super integrable systems; AdS/CFT; relativistic and nonrelativistic holography; gauge super field theories; noncommutative quantum theories; supersymmetry in dynamical systems; supersymmetry in condensed matter and statistical physics
(This special issue belongs to the Section Physics)
Symmetries in Differential Equations and Application - Volume II
edited by
submission deadline 30 Sep 2024 | 3 articles | Viewed by 2993 | 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)
Recent Developments and Applications in Nonlinear Optics
edited by
submission deadline 30 Sep 2024 | 2 articles | Viewed by 2953 | Submission Open
Keywords: Lie symmetry analysis; optical soliton solutions; non-Kerr laws; integration methods; nonlinear Schrö dinger's equation
(This special issue belongs to the Section Physics)
Cold Atom Physics and Precision Measurements
edited by , Xiaofei Zhang and Chaofei Liu
submission deadline 30 Sep 2024 | 1 articles | Viewed by 2923 | Submission Open
Keywords: cold atoms; cold molecules; ultracold atoms; many-body quantum physics; precision measurements
(This special issue belongs to the Section Physics)
Symmetry in Process Optimization submission deadline 30 Sep 2024 | 3 articles | Viewed by 2869 | Submission Open
Keywords: symmetry; process optimization; machine learning; optimization methods; interdisciplinary; algorithm efficiency; model robustness; solution quality; engineering; physics; chemistry; medecine
(This special issue belongs to the Section Computer)
Symmetry/Asymmetry in Heterogeneous Catalysis for the Activation of Small Molecules
edited by
submission deadline 30 Sep 2024 | 1 articles | Viewed by 2775 | Submission Open
Keywords: heterogeneous catalysis; photocatalysis; electrocatalysis; mechanocatalysis; activation of small molecules (CO2; H2O; N2; CH4 and organic feedstock).
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Symmetry in Metric Spaces and Topology submission deadline 30 Sep 2024 | 3 articles | Viewed by 2336 | Submission Open
Keywords: various metric spaces; convergency and completeness of different metric spaces; metric spaces and symmetric and asymmetric properties; different distances and characterizations of various metric spaces; geometric analysis of metric spaces regarding ODEs and PDEs; various abstract metric spaces using Banach algebra and C*-algebra; topologically fixed point theories; symmetries; and asymmetries; applications of fixed point theory regarding spaces; metric-based and distance concepts and combinatorics (and the emphasis on graphs); various metric spaces and fuzzy analysis; various metric spaces as new tools for artificial intelligence
(This special issue belongs to the Section Mathematics)
Symmetry/Asymmetry in Biomedical Engineering
edited by
submission deadline 30 Sep 2024 | 1 articles | Viewed by 2251 | Submission Open
(This special issue belongs to the Section Life Sciences)
Symmetry and Its Application in Wireless Communication
edited by Chengkai Tang and Rugui Yao
submission deadline 30 Sep 2024 | 3 articles | Viewed by 2238 | Submission Open
Keywords: high-speed communication; AI enabled communication; big data processing; MIMO communication; array antennas; array signal processing; smart reflective surface
(This special issue belongs to the Section Computer)
Nonlinear Analysis and Applications, Geometry of Banach Spaces and Symmetry II submission deadline 30 Sep 2024 | 1 articles | Viewed by 2162 | Submission Open
Keywords: fixed-point theory and applications; best proximity point theory and applications; nonlinear operator theory and applications; generalized contractive mappings; equilibrium problems and applications; variational inequality problems and applications; optimization problems and applications; game theory and applications; numerical algorithms for nonlinear problems; well-posedness in fixed-point theory; stability of functional equations related to fixed-point theory; differential and integral equations; geometry of banach spaces; symmetry
(This special issue belongs to the Section Mathematics)
Symmetry in Combinatorial Structures
edited by Jürgen Bokowski and Isabel Hubard
submission deadline 30 Sep 2024 | 3 articles | Viewed by 1824 | Submission Open
Keywords: combinatorial and geometrical automorphisms of surfaces; sphere systems and manifolds; graph theory; embeddings; surfaces and manifolds; discrete geometry; symmetry groups; geometric polyhedra; regular maps
(This special issue belongs to the Section Mathematics)
Lorentz Symmetry and General Relativity
edited by
submission deadline 30 Sep 2024 | 1 articles | Viewed by 1565 | Submission Open
Keywords: lorentz symmetry; standard-model extension; modified theories of gravity; physics beyond general relativity; Einstein’ s equivalence principle; experimental tests of gravitational theories
(This special issue belongs to the Section Physics)
Symmetry in Applied Mechanics Analysis on Smart Optical Fiber Sensors II
edited by
submission deadline 30 Sep 2024 | 1 articles | Viewed by 1532 | Submission Open
Keywords: smart optical fiber sensor; strain and temperature measurement; smart structural health monitoring system; structural information characterization; advanced testing solution; applied mechanics analysis; interfacial action between the smart sensor and the monitored structure; strain transfer analysis; microscopic analysis on the interfacial properties; the symmetry of multi-layered sensing model
(This special issue belongs to the Section Engineering and Materials)
Symmetry in Nonlinear Interaction of Femtosecond Laser Radiation with Matter
edited by , , Lanhai He and Xi Zhao
submission deadline 30 Sep 2024 | 1 articles | Viewed by 1441 | 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)
Recent Advances in Additive Manufacturing Processes: From Material Symmetry to Performance Evaluation submission deadline 30 Sep 2024 | 1 articles | Viewed by 1440 | Submission Open
Keywords: material symmetry; additive manufacturing processes; experimental characterization; numerical modelling
(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)
Applied Mathematics and Fractional Calculus III submission deadline 30 Sep 2024 | 1 articles | Viewed by 1424 | Submission Open
Keywords: fractional calculus; fractional derivative; fractional integral; multivariable fractional calculus; fractional differential equations; fractional partial derivative equations; fractional physical equations
(This special issue belongs to the Section Mathematics)
New Challenges in Algorithms/Design/Process Optimization with Symmetry/Asymmetry
edited by and Cheng Fan
submission deadline 30 Sep 2024 | 1 articles | Viewed by 1319 | Submission Open
Keywords: symmetry exploitation; symmetry breaking; parallel computing; asymmetric data structures; algorithms with symmetry and asymmetry; optimization with symmetry and asymmetry; design with symmetry and asymmetry; process with symmetry and asymmetry
(This special issue belongs to the Section Engineering and Materials)
Symmetry and Quantum Chromodynamics in Heavy-Hadron and Quarkonium Production submission deadline 30 Sep 2024 | 1 articles | Viewed by 1198 | Submission Open
Keywords: quantum chromodynamics (QCD); QCD symmetries; heavy flavor; quarkonia; exotic matter; production mechanisms; nonrelativistic QCD (NRQCD); fragmentation; QCD factorizations; QCD resummations
(This special issue belongs to the Section Physics)
Symmetry and Metaheuristic Algorithms
edited by Erik V. Cuevas
submission deadline 30 Sep 2024 | 1 articles | Viewed by 1190 | Submission Open
Keywords: symmetry-based optimization; the improvement in traditional metaheuristic algorithms (pso; sa; de; etc.) using new mechanisms; new metaheuristic algorithms; hybridization of metaheuristic methods; multi-objective optimization; theoretical insights into metaheuristic algorithms; metaheuristics in artificial intelligence and machine learning; metaheuristics for image processing; metaheuristic applications in healthcare and biomedical engineering; emerging trends and future directions in metaheuristic research
(This special issue belongs to the Section Computer)
Symmetry in Integrable Systems and Soliton Theories
edited by
submission deadline 30 Sep 2024 | 1 articles | Viewed by 1093 | Submission Open
Keywords: solutions for partial differential and integral equations; Hamiltonian structures; Darboux transformations; solitons; Lie symmetry theory; Riemann– Hilbert problems
(This special issue belongs to the Section Mathematics)
Advances in Difficult Protein–Protein Interaction Determination
edited by , Stéphane Téletchéa and
submission deadline 30 Sep 2024 | Viewed by 726 | Submission Open
Keywords: protein– protein interactions; membrane proteins; intrinsically disordered proteins; macromolecular assembly; protein– DNA complex
(This special issue belongs to the Section Life Sciences)
Symmetry in Cybersecurity–Generative AI Security and Threat Resiliency submission deadline 30 Sep 2024 | Viewed by 519 | Submission Open
(This special issue belongs to the Section Computer)
Topological Indices and Symmetry in Complex Networks II
edited by Guifu Su and Junfeng Du
submission deadline 30 Sep 2024 | Viewed by 486 | Submission Open
Keywords: topological graph indices; spectral graph theory; graph parameters; combinatorics; complex networks; network optimization; network reliability; potential topics include but are not limited to those mentioned previously
(This special issue belongs to the Section Mathematics)
Relativity Based on Symmetry—Part II
edited by
submission deadline 30 Sep 2024 | Viewed by 369 | Submission Open
Keywords: relativity of spacetime; geometrization of spacetime; action function of curved spacetime; visualization of the geometry of a spacetime; principle of least action; Euler-Lagrange equations; relativistic dynamics; electromagnetic and gravitational fields; energy-momentum of a field; the fundamental charge; gravitational waves and their polarization; the spiral structure of galaxies
(This special issue belongs to the Section Physics)
The Symmetry of QCD Matter and Functional QCD Approaches
edited by Fei Gao and Yu-xin Liu
submission deadline 30 Sep 2024 | Viewed by 346 | 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)
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