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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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Mathematical Modeling of the Infectious Diseases and Their Controls

edited by

Muhammad Altaf Khan

submission deadline 31 Aug 2025 | 16 articles | Viewed by 30306 | Submission Open

Keywords: mathematical modeling; infectious diseases; optimal controls; fractional operators; numerical methods

(This special issue belongs to the Section Mathematics)

The Dark Universe: The Harbinger of a Major Discovery

edited by

Konstantin Zioutas

submission deadline 31 Aug 2025 | 10 articles | Viewed by 23302 | 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)

Symmetry or Asymmetry in Machine Learning

edited by

Shuang Xu

submission deadline 31 Aug 2025 | 4 articles | Viewed by 19164 | Submission Open

Keywords: machine learning; deep learning; computational statistics; artificial intelligence; data mining

(This special issue belongs to the Section Computer)

Symmetry and Approximation Methods II

edited by

Simon Gluzman

submission deadline 31 Aug 2025 | 5 articles | Viewed by 15616 | Submission Open

(This special issue belongs to the Section Mathematics)

Symmetry in Graph Algorithms and Graph Theory III

edited by

Manuel Lafond

submission deadline 31 Aug 2025 | 8 articles | Viewed by 14338 | Submission Open

(This special issue belongs to the Section Computer)

New Trends on the Mathematical Models and Solitons Arising in Real-World Problems, 2nd Edition

edited by

Haci Mehmet Baskonus

submission deadline 31 Aug 2025 | 10 articles | Viewed by 13259 | Submission Open

Keywords: mathematical physics; partial differential equations; epidemic models; basic reproduction number; fractional differential equations; dynamical systems; stability analysis; bifurcation; optimal control

(This special issue belongs to the Section Mathematics)

Symmetry in Intelligent Algorithms

edited by Hongwei Kang and Xinping Sun

submission deadline 31 Aug 2025 | 10 articles | Viewed by 12237 | 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)

Computational Intelligence and Soft Computing: Recent Applications—Second Volume

edited by

László T. Kóczy

submission deadline 31 Aug 2025 | 5 articles | Viewed by 11874 | Submission Open

Keywords: computational intelligence; soft computing; fuzzy systems; artificial neural networks; connectionist systems; evolutionary algorithms; memetic algorithms; subjective probability; cognitive systems; deep learning; industrial applications; biomedical applications; logistics applications; environmental science applications; management science applications; decision support applications; image processing applications; modeling and algorithms

(This special issue belongs to the Section Computer)

Symmetry in Hadron Physics

edited by

Jialun Ping

submission deadline 31 Aug 2025 | 9 articles | Viewed by 10766 | Submission Open

Keywords: hadrons; quantum chromodynamics; baryon spectrum; meson spectrum; multiquark states; exotic states

(This special issue belongs to the Section Physics)

Chiral Symmetry, and Restoration in Nuclear Dense Matter

edited by Kazuo Tsushima, Anthony Thomas and Myung Ki Cheoun

submission deadline 31 Aug 2025 | 13 articles | Viewed by 9985 | Submission Open

Keywords: chiral symmetry in dense nuclear medium; chiral symmetry restoration; hadron properties; nucleon structure; quantum chromodynamics; compact star structure

(This special issue belongs to the Section Physics)

Symmetry in Power Systems and Thermal Engineering

edited by

Chih Ping Tso

and Gooi Mee Chen

submission deadline 31 Aug 2025 | 3 articles | Viewed by 8927 | Submission Open

Keywords: thermal power systems; energies; thermal science; thermal engineering; thermal management

(This special issue belongs to the Section Engineering and Materials)

Symmetry/Asymmetry in Neural Networks

edited by Yufeng Tian and

Zhenghong Jin

submission deadline 31 Aug 2025 | 4 articles | Viewed by 8186 | 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)

Fuzzy Set Theory and Uncertainty Theory—3rd Edition

edited by

Jian Zhou

Ke Wang

and

Yuanyuan Liu

submission deadline 31 Aug 2025 | 5 articles | Viewed by 7825 | Submission Open

Keywords: intelligent algorithms for solving fuzzy/uncertain optimization problems; properties of fuzzy optimal solutions; fuzzy linear/non-linear regression; fuzzy/uncertain clustering; fuzzy/uncertain risk management; fuzzy/uncertian reliability analysis; fuzzy/uncertain joint replenishment problem; fuzzy optimization in product design

(This special issue belongs to the Section Mathematics)

Symmetry in Green Technologies: Design, Optimization, and Applications

edited by

Julio Cesar Rosas Caro

and

Zoltán Ádám Tamus

submission deadline 31 Aug 2025 | 3 articles | Viewed by 7304 | Submission Open

Keywords: electricity generation with photovoltaic (PV) panels and/or fuel cell (FC) stacks; symmetric power electronics converters such as double dual topologies; power electronics topologies with symmetric switching ripple cancellation; optimization and management of resources in industrial applications; mathematical models for the optimization of symmetric or balanced phenomena; heuristic optimization algorithms and applications; metaheuristic optimization algorithms and applications; new optimization algorithms and applications; optimization of resources in industrial applications

(This special issue belongs to the Section Engineering and Materials)

Symmetry and Its Applications in Image Processing

edited by José Luis Vázquez-Noguera, Horacio Legal-Ayala and

Julio César Mello-Román

submission deadline 31 Aug 2025 | 6 articles | Viewed by 6040 | Submission Open

Keywords: symmetry; image processing; visual data analysis; symmetric algorithms; pattern recognition; computational imaging; symmetry detection; feature extraction; symmetric patterns; symmetry-based transformations

(This special issue belongs to the Section Computer)

Symmetry in Computational Mathematics and Biophysics

edited by

Chuan Li

submission deadline 31 Aug 2025 | 3 articles | Viewed by 5981 | Submission Open

Keywords: biophysics; mathematical biology; computational mathematics; mathematical modeling; numerical methods for solving ordinary and partial differential equations; computing algorithms

(This special issue belongs to the Section Mathematics)

Recent Advance in Mathematical Physics II

edited by

Antonio Masiello

submission deadline 31 Aug 2025 | 6 articles | Viewed by 5880 | Submission Open

(This special issue belongs to the Section Mathematics)

Symmetry/Asymmetry in Ocean Engineering

edited by

Youjiang Wang

Luofeng Huang

and

Liangliang Lu

submission deadline 31 Aug 2025 | 2 articles | Viewed by 3819 | Submission Open

Keywords: hydrodynamics; hull design; offshore structure; wave loads; propulsion system; sustainable solution

(This special issue belongs to the Section Engineering and Materials)

Symmetry/Asymmetry in Neural Networks and Applications

edited by

Peishun Liu

and

Ruichun Tang

submission deadline 31 Aug 2025 | 2 articles | Viewed by 3669 | Submission Open

Keywords: neural network; artificial intelligence; deep learning; adversarial learning; self-supervised learning; feature engineering

(This special issue belongs to the Section Computer)

Symmetry in Data Sciences and Machine Learning for Multidisciplinary Research

edited by

Marco Antonio Márquez-Vera

Ming Li

and

Eric Simancas-Acevedo

submission deadline 31 Aug 2025 | 2 articles | Viewed by 2958 | 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)

Symmetry/Asymmetry in Image Processing and Computer Vision

edited by

Xingbo Dong

and Shuo Yang

submission deadline 31 Aug 2025 | 2 articles | Viewed by 2869 | 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)

Recent Advances of Symmetry in Computational Fluid Dynamics

edited by Zhan Ma and

Constantin Fetecau

submission deadline 31 Aug 2025 | 2 articles | Viewed by 2409 | Submission Open

Keywords: computational fluid dynamics; numerical simulations; symmetric conditions; aerodynamics; heat transfer; design optimization; machine learning; turbulence modeling

(This special issue belongs to the Section Mathematics)

Advances in Control Systems and Symmetry/Asymmetry

edited by Yiming Wu

submission deadline 31 Aug 2025 | 1 articles | Viewed by 2128 | Submission Open

Keywords: symmetric/asymmetric control constraints; intelligent optimal control; neural-network-based control; event-triggered control; adaptive iterative learning control; nonlinear tracking control; robust control; stochastic system control

(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 2025 | 1 articles | Viewed by 2021 | 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)

Symmetry in Bearing Modeling and Intelligent Fault Diagnosis

edited by

Jiantao Lu

Xingxing Jiang

and Jie Liu

submission deadline 31 Aug 2025 | 1 articles | Viewed by 1875 | Submission Open

Keywords: symmetry in bearing modeling; intelligent fault diagnosis; data-driven fault diagnosis method; interpretable intelligent diagnosis; transfer learning; active learning

(This special issue belongs to the Section Engineering and Materials)

Individual Differences in Behavioral and Neural Lateralization, 2nd Edition

edited by

Anita D'Anselmo

, Elena Mussini and

Daniele Marzoli

submission deadline 31 Aug 2025 | 2 articles | Viewed by 1531 | 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)

Symmetry/Asymmetry in Computer Vision and Pattern Recognition for Sensing Smart Cities

edited by

Hugo Jiménez Hernández

Jorge Domingo Mendiola-Santibáñez

and Ana Marcela Herrera-Navarro

submission deadline 31 Aug 2025 | 1 articles | Viewed by 1213 | Submission Open

Keywords: computer vision systems; pattern recognition; symmetry and asymmetry; smart cities; video understanding; video analytics; smart sensing

(This special issue belongs to the Section Computer)

Symmetry in Optimization Algorithms and Applications

edited by

Adrián González

submission deadline 31 Aug 2025 | 1 articles | Viewed by 795 | Submission Open

Keywords: symmetry; optimization algorithms; problem simplification; search space reduction; algorithm efficiency; symmetry breaking; mathematical programming; combinatorial optimization; convergence acceleration

(This special issue belongs to the Section Mathematics)

Symmetry Applied in Mathematical Modeling and Computational Methods

edited by

Luis Acedo

submission deadline 31 Aug 2025 | Viewed by 560 | Submission Open

Keywords: neural networks; symplectic methods; optimal control theory; symmetries in mathematical models; gauge theories; symmetry breaking models

(This special issue belongs to the Section Mathematics)

Developments in Mechanical Engineering and Symmetry

edited by Fuqiang Chen and

Bo Hu

submission deadline 31 Aug 2025 | Viewed by 430 | Submission Open

Keywords: symmetry analysis; aerodynamic; acoustic; flow control; fluid dynamics; optimal design; computational fluid dynamics; structural control

(This special issue belongs to the Section Engineering and Materials)

Symmetry-Based Properties in Two-Dimensional Materials

edited by

Sake Wang

Minglei Sun

and

Nguyen Tuan Hung

submission deadline 31 Aug 2025 | Viewed by 422 | 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)

Quantum Technologies in Computing, Communication, Sensing and Imaging

edited by

Aleksey Kozikov

submission deadline 31 Aug 2025 | Viewed by 382 | Submission Open

Keywords: quantum computing; quantum communication; quantum sensing; quantum imaging; quantum networks; quantum internet; superposition; entanglement; single photons; single electrons; single spins; trapped ions and atoms; qubits; qudits; simulations; cryptography; quantum key distribution

(This special issue belongs to the Section Physics)

Symmetry or Asymmetry in Signal/Image Processing, Pattern Recognition, and Microwave/Millimeter-Wave Technologies

edited by

Baolong Wu

and Yiming Yu

submission deadline 31 Aug 2025 | Viewed by 366 | Submission Open

Keywords: signal processing; image processing; pattern recognition; machine learning; microwave/millimeter-wave technologies

(This special issue belongs to the Section Computer)

Quantum Synchronization of Oscillators and Qubits

edited by

Giovanni Modanese

submission deadline 31 Aug 2025 | Viewed by 314 | Submission Open

Keywords: synchronization; quantum synchronization; quantum symmetry; superradiance; quantum optics; entanglement

(This special issue belongs to the Section Physics)

Exploring Symmetry and Asymmetry in Supply Chain Management: Frameworks, Applications and Innovations for Resilient and Sustainable Systems

edited by

Jabir Arif

and

Fouad Jawab

submission deadline 31 Aug 2025 | Viewed by 294 | Submission Open

Keywords: supply chain symmetry; asymmetry in logistics networks; resilient supply chains; sustainable supply chain systems; mathematical modeling in scm; optimization techniques; risk management in supply chains; collaborative supply chain frameworks; innovation in logistics; resilient supply chain design

(This special issue belongs to the Section Computer)

Symmetry and Asymmetry in Object Detection, Object Tracking, and Behaviour Understanding

edited by Mohamed Naiel

submission deadline 31 Aug 2025 | Viewed by 290 | 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)

Symmetry in the Dark: Unification of Dark Matter and Dark Energy

edited by Fotios Anagnostopoulos

submission deadline 15 Sep 2025 | Viewed by 362 | Submission Open

Keywords: modified gravity; dark matter; dark energy; interacting dark energy (DE); clustering dark energy (DE); galaxy rotation curves; large-scale structure; gravitational waves; dark energy/dark matter (DE/DM) unification

(This special issue belongs to the Section Physics)

Symmetry in Mechanical Engineering: Properties and Applications

edited by

Yunqing Tang

, Kun Xu and

Bing Yang

submission deadline 30 Sep 2025 | 11 articles | Viewed by 23128 | 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)

Aspects of Particle Physics and High Energy Physics- Dedicated to Zhengdao Li's 95 Anniversary

edited by

Tomohiro Inagaki

Alberto Ruiz-Jimeno

and

Olga Kodolova

submission deadline 30 Sep 2025 | 8 articles | Viewed by 16326 | Submission Open

(This special issue belongs to the Section Physics)

Symmetries and Anomalies in Flavour Physics

edited by

Stefania Ricciardi

, Thomas Blake and Farvah Nazila Mahmoudi

submission deadline 30 Sep 2025 | 8 articles | Viewed by 15912 | Submission Open

Keywords: flavor physics; physics beyond the standard model; anomalies; lepton flavor universality; lepto-quarks; Z’

(This special issue belongs to the Section Physics)

Novel Approaches for Asymmetric Synthesis

edited by

Veroniki Peter Vidali

Marina Sagnou

and

Gerasimos Rassias

submission deadline 30 Sep 2025 | 3 articles | Viewed by 14610 | Submission Open

Keywords: Catalysts for asymmetric synthesis; New chiral sources with applications in asymmetric synthesis; Auxiliaries for induction of chirality; Enzymes used in asymmetric approaches; Green reagents for applications in asymmetric synthetic methods; Asymmetric synthesis of natural products or analogues; Applications of asymmetric synthesis in medicine; agrochemical; nanotechnology; and others

(This special issue belongs to the Section Chemistry: Symmetry/Asymmetry)

Symmetry/Asymmetry in Operations Research

edited by Yunfei Fang and Peng Wu

submission deadline 30 Sep 2025 | 8 articles | Viewed by 14097 | 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)

Advanced Technologies in Electrical and Electronic Engineering, 3rd Edition

edited by

Kejun Li

Yongliang Liang

and

Zhijie Liu

submission deadline 30 Sep 2025 | 7 articles | Viewed by 13227 | Submission Open

Keywords: Asymmetrical Fault Characteristics Analysis; Three-phase imbalance analysis

(This special issue belongs to the Section Engineering and Materials)

Hidden Dark Sector in High Energy Physics

edited by Theodota Lagouri

submission deadline 30 Sep 2025 | 3 articles | Viewed by 11447 | Submission Open

Keywords: high energy collider physics; LHC; hidden dark sector; exotic Higgs decays; dark photon; dark matter (DM); beyond the Standard Model (BSM)

(This special issue belongs to the Section Physics)

Symmetry Applied in Biometrics Technology

edited by

Jules-Raymond Tapamo

submission deadline 30 Sep 2025 | 2 articles | Viewed by 11054 | Submission Open

Keywords: biometrics; identification; symmetry; pattern recognition; soft biometrics; safety; security

(This special issue belongs to the Section Computer)

Symmetry and Asymmetry in Information Security and Network Security

edited by Bingwen Feng

submission deadline 30 Sep 2025 | 6 articles | Viewed by 10888 | Submission Open

Keywords: network security; data hiding; information security

(This special issue belongs to the Section Computer)

Symmetry in the Soliton Theory

edited by

Baojian Hong

, Dianchen Lu,

Yusuf Gürefe

and

Naila Nasreen

submission deadline 30 Sep 2025 | 4 articles | Viewed by 9437 | Submission Open

Keywords: soliton; solitary waves; dynamical systems theory; bifurcation analysis; exact solutions; approximate solutions; numerical methods; fractional partial differential equations; fractional calculus; Darboux transformation; Bä cklund transformation; homotopy analysis method; homotopy perturbation method; lie symmetry; laplace transform

(This special issue belongs to the Section Physics)

Symmetry in Functional Equations: Methods, Applications and Mathematical Models

edited by