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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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Asymmetry/Symmetry in Electrical Engineering

edited by Zhen Liao

submission deadline 30 Jun 2025 | Viewed by 566 | Submission Open

Keywords: asymmetry/symmetry component; asymmetry/symmetry signal; asymmetry/symmetry circuits; asymmetry/symmetry antenna; asymmetry/symmetry system

(This special issue belongs to the Section Computer)

Asymmetric and Symmetric Studies on Robotics

edited by

Luís Nogueira

and

Jorge Coelho

submission deadline 30 Jun 2025 | Viewed by 562 | Submission Open

Keywords: symmetry; asymmetry; robotics; design; control; motion planning; object manipulation; locomotion; coordination; perception; bio-inspired robotics

(This special issue belongs to the Section Computer)

Symmetry, Asymmetry and Other Patterns in Structural Engineering with Its Application

edited by

Katarzyna Kubicka

submission deadline 30 Jun 2025 | 1 articles | Viewed by 533 | Submission Open

Keywords: building structures; symmetry/asymmetry phenomena; computational methods; experimental methods; steel wood and concrete structures; structure geometry; symmetrical/asymmetrical load

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

Symmetry and Asymmetry in Cryptography and Cyber Security

edited by

Ruslan Shevchuk

submission deadline 30 Jun 2025 | Viewed by 403 | Submission Open

Keywords: cryptography; cryptosystems; cryptanalysis; cryptographic protocols; quantum cryptography; applied cryptography; database security; distributed system security; blockchain; digital forensics; data protection; web security

(This special issue belongs to the Section Computer)

Symmetry and Its Application in Remote Sensing

edited by

Rifaat Abdalla

submission deadline 30 Jun 2025 | Viewed by 390 | Submission Open

Keywords: imaging applications; feature extraction; multi-dimension mapping; bathymetry mapping; machine learning; facilities observation; natural resources; image processing; drones applications; hyperspectral imaging

(This special issue belongs to the Section Computer)

Quantum Mechanics: Concepts, Symmetries, and Recent Developments: 2nd Edition

edited by

Trong Tuong Truong

submission deadline 30 Jun 2025 | 1 articles | Viewed by 388 | Submission Open

Keywords: supersymmetry; superintegrability; phase space formulation; entanglement; measurement theory; symmetry group invariance; representation theory; anyonsanions; deformation quantization

(This special issue belongs to the Section Physics)

Footprints of Fundamental Symmetries in Cosmology

edited by William Giarè and

Eleonora Di Valentino

submission deadline 30 Jun 2025 | Viewed by 378 | Submission Open

Keywords: inflation; early universe; non-Gaussianity; modified gravity; axion cosmology; parity violation; neutrino cosmology; large-scale structure; dark mater; dark energy; cosmological tensions

(This special issue belongs to the Section Physics)

Symmetry/Asymmetry and Its Applications in Deep Learning and Artificial Intelligence Methods

edited by

Eréndira Rendón-Lara

and Rosa María Valdovinos-Rosas

submission deadline 30 Jun 2025 | Viewed by 374 | Submission Open

Keywords: deep learning; multimedia; generative adversarial network; pattern recognition; intelligent human– computer interaction; convolutional neural networks; recurrent neural networks; graph neural network; long short-term memory; extreme learning machine; generative adversarial networks; reinforcement learning; clustering analysis; natural language processing; time series analysis; model-based clustering high-dimensional modeling

(This special issue belongs to the Section Computer)

Symmetry in Computational Fluid Dynamics

edited by

Adán Ramírez-López

and

Massimiliano Marino

submission deadline 30 Jun 2025 | Viewed by 361 | Submission Open

Keywords: computational fluid dynamics; numerical analysis; fluids properties; application of computational models; droplets; bubbles; streamlines and fluid flows; fluid flow applications (chemistry; physics; mathematics; industrial; metallurgical; aeronautical; civil; medical; biology and engineering); numerical approaching analysis

(This special issue belongs to the Section Mathematics)

Symmetry, Fault Detection, and Diagnosis in Automatic Control Systems

edited by

Lingfei Xiao

submission deadline 30 Jun 2025 | 1 articles | Viewed by 359 | Submission Open

Keywords: fault diagnosis; fault-tolerant control; health evaluation; energy systems; power systems; microgrids; electromechanical systems

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

Applications of Special Functions in Complex Analysis and Their Symmetries

edited by

Valer-Daniel Breaz

and

Kadhavoor Ragavan Karthikeyan

submission deadline 30 Jun 2025 | 1 articles | Viewed by 348 | Submission Open

Keywords: univalent functions; multivalent functions; special functions; multiplicative calculus; quantum calculus; differential subordination; differential superordination; fuzzy differential subordinations and superordinations

(This special issue belongs to the Section Mathematics)

Symmetry in Advanced Manufacturing

edited by Dening Song and Jianwei Ma

submission deadline 30 Jun 2025 | Viewed by 344 | Submission Open

Keywords: machining; machine tools technology; material removal processes; robotics; production scheduling; manufacturing automation; green manufacturing; additive manufacturing; manufacturing planning; building processes optimization; computer-integrated manufacturing; smart manufacturing; manufacturing management; laser machining; logistics in manufacturing; symmetry; asymmetry; sensors; measurements

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

Physics of Primordial Black Holes

edited by Yingli Zhang

submission deadline 30 Jun 2025 | Viewed by 311 | Submission Open

Keywords: primordial black hole; inflation; gravitational wave; symmetry breaking; dark matter

(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 30 Jun 2025 | Viewed by 295 | 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 Studies and Application in Power System Stability

edited by Siqi Wu and Chang Li

submission deadline 30 Jun 2025 | Viewed by 254 | Submission Open

Keywords: symmetry; power system; power electronics; symmetric fault; asymmetric fault; stability; balanced condition; renewable energy; signal processing; inverter-based resources

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

Symmetry and Distributed Power System

edited by

Min Liu

and

Guojiang Xiong

submission deadline 30 Jun 2025 | Viewed by 237 | Submission Open

Keywords: distributed power systems; power system symmetry; harmonic detection; fault analysis; state estimation; renewable energy modeling; deep learning

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

Symmetry and Asymmetry in Quantum Models

edited by Marek Góźdź and Wenxue Cui

submission deadline 30 Jun 2025 | Viewed by 226 | Submission Open

Keywords: gauge field theory; symmetry breaking; nuclear symmetry; phase transition; entanglement; conservation law; quantum evolution; quantum information

(This special issue belongs to the Section Physics)

Symmetries in Optimization Theory and Its Applications

edited by Xiaoxi Zhang, Jinhang Zuo and Chee Wei Tan

submission deadline 30 Jun 2025 | Viewed by 207 | Submission Open

Keywords: optimization theory; symmetry in optimization; symmetric cone optimization; combinatorial optimization; sparse optimization; statistical optimization; financial optimization; economic optimization; interior-point methods; first-order methods; learning-aided optimization; reinforcement learning; neural networks; mathematical modeling

(This special issue belongs to the Section Computer)

Exploring the Advances in Symmetry and Quantum Field Theory: From Subatomic Interactions to the Early Universe

edited by

Haidar Sheikhahmadi

and Naser Ahmadiniaz

submission deadline 30 Jun 2025 | Viewed by 202 | Submission Open

Keywords: quantum fields (scalar; fermionic; gauge); feynman diagrams and perturbation theory; renormalization (UV divergence; counterterms); path integral formulation; loop corrections; symmetries and conservation laws (Noether's theorem); semi-classical approximation: quantum fields on classical spacetimes; vacuum states in curved spacetimes (Hartle-Hawking; Bunch-Davies); particle creation in curved spacetime (Hawking radiation; Unruh effect); quantum anomalies in early universe dynamics; quantum effects in the cosmic microwave background (CMB)

(This special issue belongs to the Section Physics)

Symmetry and Asymmetry in Services Computing Meeting AI

edited by

Lianyong Qi

Xuyun Zhang

and Yanwei Xu

submission deadline 30 Jun 2025 | Viewed by 183 | Submission Open

Keywords: symmetry; services computing; AI

(This special issue belongs to the Section Computer)

Symmetry/Asymmetry in Active Noise Control and Acoustic Echo Cancellation: Advances and Applications

edited by

Juan Gerardo Ávalos

Jesús Olivares-Mercado

and Eliseo Sarmiento Rosales

submission deadline 30 Jun 2025 | Viewed by 182 | Submission Open

Keywords: active noise control; acoustic echo cancellation; sensor and actuator; subband filtering; efficient filter implementation; deep learning for acoustic echo cancellation and active noise control; real-time implementation of active noise control systems and acoustic echo canceller systems

(This special issue belongs to the Section Computer)

Chiral Pollutants: Environmental Impact, Detection, and Remediation

edited by

Victor Borovkov

submission deadline 30 Jun 2025 | Viewed by 159 | Submission Open

Keywords: chirality; enantiomers; chiral pollutants; environmental impact; detection; remidiation

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

Symmetry Application in Metals and Alloys

edited by Bo Zhang and Yimin Zhuo

submission deadline 30 Jun 2025 | Viewed by 150 | Submission Open

Keywords: symmetric and asymmetric characteristics; metals and alloys; metal matrix composites; cermets; joining; casting; forging; additive manufacturing; powder metallurgy

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

Symmetry and Asymmetry in Biomechanics and Gait Mechanics

edited by

Bianca Callegari

submission deadline 30 Jun 2025 | Viewed by 137 | Submission Open

Keywords: biomechanics; gait mechanics; symmetry; asymmetry; health; human movement; performance optimization; rehabilitation; assistive technologies; sports science

(This special issue belongs to the Section Life Sciences)

Symmetry in Predictive Control System

edited by

Xing Fang

submission deadline 30 Jun 2025 | Viewed by 131 | Submission Open

Keywords: predictive control; unmanned systems; disturbance rejection; tracking control; robustness

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

Symmetry in Biosensors

edited by

XiaoGang Lin

submission deadline 30 Jun 2025 | Viewed by 121 | Submission Open

Keywords: bio-photoelectric sensing; microsensors; trace detection; liquid biopsy; biomarker research; cancer diagnostics; food safety

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

Chemistry: Symmetry/Asymmetry—Feature Papers and Reviews

edited by

György Keglevich

submission deadline 31 Jul 2025 | 13 articles | Viewed by 16654 | Submission Open

Keywords: chirality; enantiomers; diastereomers; molecular symmetry; plane of symmetry; asymmetric carbon; optically active compounds; stereocenter; homochirality; symmetry elements; mirror plane; molecular chirality; asymmetric synthesis; optical resolution; X-ray crystallography; X-ray structures; crystal structures; homochirality in chemistry and biochemistry; symmetry and spectroscopy

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

Symmetry/Asymmetry in Operations Research

edited by Yunfei Fang and Peng Wu

submission deadline 31 Jul 2025 | 8 articles | Viewed by 12316 | 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)

Symmetric and Asymmetric Distributions: New Developments and Applications

edited by

Emilio Gómez Déniz

Enrique Calderín-Ojeda

and

Héctor W. Gómez

submission deadline 31 Jul 2025 | 6 articles | Viewed by 9547 | Submission Open

Keywords: applications; Bayesian; regression; reliability; simulation; skewness; survival analysis

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

Applications of Symmetry in Computational Biology

edited by Siqi Liang and Siwei Chen

submission deadline 31 Jul 2025 | 4 articles | Viewed by 5807 | 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)

Symmetry and Asymmetry in Nonlinear Partial Differential Equations

edited by

Eugenia N. Petropoulou

and

Michalis Xenos

submission deadline 31 Jul 2025 | 4 articles | Viewed by 5455 | Submission Open

Keywords: symmetry; asymmetry; partial differential equations; numerical methods; approximate methods; exact solutions

(This special issue belongs to the Section Mathematics)

Mechanics of Heterogeneous Solids and Structures

edited by

Ludmila Prikazchikova

and

Igor Andrianov

submission deadline 31 Jul 2025 | 2 articles | Viewed by 4467 | Submission Open

(This special issue belongs to the Section Mathematics)

Symmetry in Integrable Systems: Topics and Advances

edited by

Bo Ren

submission deadline 31 Jul 2025 | 3 articles | Viewed by 3894 | Submission Open

(This special issue belongs to the Section Mathematics)

Symmetry/Asymmetry in Topological Phases

edited by Tian Chen, Daohong Song and Fuchuan Lei

submission deadline 31 Jul 2025 | 3 articles | Viewed by 3569 | Submission Open

Keywords: symmetry/asymmetry in new topological phases; non-Hermitian system; non-Euclidean geometry condition; topological functional devices; machine learning

(This special issue belongs to the Section Physics)

Symmetry/Asymmetry in Sustainable Transport and Logistics

edited by Yiwei Wu and Jingwen Qi

submission deadline 31 Jul 2025 | 1 articles | Viewed by 2618 | Submission Open

Keywords: symmetry/asymmetry; sustainable transportation; green logistics; mathematical optimization; eco-friendly routing; sustainable supply chain; renewable energy in transport; advanced analytics; machine learning in logistics; network design and resilience

(This special issue belongs to the Section Mathematics)

Advances in Nonlinear Systems and Symmetry/Asymmetry

edited by

Nannan Zhao

and Zhongkui Sun

submission deadline 31 Jul 2025 | 3 articles | Viewed by 2212 | Submission Open

Keywords: nonlinear systems; coupled oscillators; complex networks; complex systems; synchronization; pattern formation; phase transitions

(This special issue belongs to the Section Mathematics)

Symmetry and Its Applications in Complex Analysis by the Means of Special Functions

edited by

Jamal Salah

submission deadline 31 Jul 2025 | 3 articles | Viewed by 1836 | Submission Open

Keywords: symmetry; univalent functions; bi-univalent functions; multivalent functions; fractional calculus; q-calculus; special functions

(This special issue belongs to the Section Mathematics)

Symmetry/Asymmetry in Manufacturing and Machining of Advanced Materials

edited by

Dongtao Wang

and Zibin Wu

submission deadline 31 Jul 2025 | 1 articles | Viewed by 1314 | 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/Asymmetry in Thermal Management

edited by Zengguang Sui, Dongxing Song and Zhixiong Ding

submission deadline 31 Jul 2025 | 1 articles | Viewed by 1172 | 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)

Advances in Mathematical Models and Partial Differential Equations: 2nd Edition

edited by Yunhu Wang and

Manwai Yuen

submission deadline 31 Jul 2025 | 2 articles | Viewed by 1121 | Submission Open

Keywords: partial differential equation; mathematical method

(This special issue belongs to the Section Mathematics)

Symmetry Problems in Metal Forming

edited by

Gaochao Yu

and Rui Ma

submission deadline 31 Jul 2025 | 1 articles | Viewed by 890 | Submission Open

Keywords: metal forming; material modeling; numerical simulation

Asymmetry in Machine Learning

edited by Hui Zhang and

Kuo-Hui Yeh

submission deadline 31 Jul 2025 | Viewed by 731 | Submission Open

Keywords: machine learning; prediction algorithms; accuracy; SVM; data set

(This special issue belongs to the Section Computer)

Symmetry/Asymmetry in Evolutionary Computation and Machine Learning

edited by

Shuwei Zhu

and Leilei Cao

submission deadline 31 Jul 2025 | 1 articles | Viewed by 713 | Submission Open

Keywords: evolutionary computation; machine learning; swarm intelligence; bio-inspired optimization; pattern classification and clustering analysis; symmetry in evolutionary single-objective and multi-objective optimization; symmetry in regularization techniques; symmetry in data augmentation; symmetry in neural networks and deep learning; symmetry and asymmetric similarity measures

(This special issue belongs to the Section Computer)

Applications Based on Symmetry in Image Processing and Optimization

edited by Longfei Ren, Minghua Wang and Jing Yao

submission deadline 31 Jul 2025 | 1 articles | Viewed by 671 | Submission Open

Keywords: remote sensing images; image processing; medical imaging; image reconstruction; image denoising; MRI; X-ray imaging; PET imaging; ultrasound imaging; computational efficiency; applications of symmetry in different image modalities

(This special issue belongs to the Section Computer)

Symmetry and Its Applications in Quantum Optics and Quantum Information

edited by R. Ahl Laamara and Abdallah Slaoui

submission deadline 31 Jul 2025 | Viewed by 585 | Submission Open

Keywords: quantum optics; quantum networks; quantum information; quantum cryptography; quantum communication

(This special issue belongs to the Section Physics)

Navigating the Frontiers of 6G Wireless Communication Networks and Beyond

edited by Jamal Belkadid and

Mohammed El Ghzaoui

submission deadline 31 Jul 2025 | 1 articles | Viewed by 487 | Submission Open

Keywords: wireless network; mimo system; antenna arrays; visible light communication; non-orthogonal multiple access; multiple input multiple output

(This special issue belongs to the Section Computer)

Symmetry and Renewable Energy

edited by Jianwei Tan and

Guangdong Tian

submission deadline 31 Jul 2025 | 1 articles | Viewed by 466 | Submission Open

Keywords: symmetrical design and mechanism; symmetry and renewable energy; power grids

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

Symmetry/Asymmetry Studies in Data Mining & Machine Learning of Large Language Models

edited by Shaolin Zhu and Lijie Wen

submission deadline 31 Jul 2025 | 1 articles | Viewed by 423 | Submission Open

Keywords: symmetry; asymmetry; data mining; machine learning; large language models; deep learning

(This special issue belongs to the Section Computer)

Studies of Symmetry/Asymmetry in Cybersecurity

edited by

Everardo Inzunza-González

and

Iqbal H. Sarker

submission deadline 31 Jul 2025 | Viewed by 372 | Submission Open

Keywords: symmetric cryptography; asymmetric cryptography; cloud security; IoT security; artificial intelligence in cybersecurity; machine learning for cyber defense; supply chain security; ransomware mitigation; zero trust architecture; critical infrastructure protection; data privacy and protection; 5G network security; insider threat detection; chaos-based encryption

(This special issue belongs to the Section Computer)

Energy Symmetry and Equilibrium Methods in the Optimization and Control of Integrated Energy Systems

edited by Jiawen Li,