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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. The journal’s Editor-in-Chief and/or designated EBM 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. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Relativistic Hydrodynamics and Symmetry: Theory, Methods and Applications

edited by

Armen Sedrakian

submission deadline 30 Apr 2024 | 7 articles | Viewed by 20200 | Submission Open

Keywords: Symmetry; Heavy Ion Collisions; Neutron Stars; Hydrodynamics; General Relativity; Gravitational waves

(This special issue belongs to the Section Physics)

Symmetry, Topology and Phases of Condensed Matter

edited by

Aleksey Kozikov

submission deadline 30 Apr 2024 | 7 articles | Viewed by 12704 | Submission Open

Keywords: Crystallographic and time-reversal symmetry; Incommensurate systems and quasi-crystals; Group theory; electron and phonon dispersion relations; theory and applications of representations; Topological states of matter; Quantum Hall effects; Condensation and superfluidity; Dirac and Weyl semimetals; superconductors; quantum materials; Nanostructures; Skyrmions; Majorana fermions; Abelian and non-Abelian anyons; Electronic structure; Strong correlations; Transport and optical phenomena; X-ray scattering; numerical simulations; non-perturbative and field theory; statistical; many-body physics

(This special issue belongs to the Section Physics)

Symmetry in Geometric Theory of Analytic Functions

edited by

Daciana Alina Alb Lupas

submission deadline 30 Apr 2024 | 14 articles | Viewed by 12078 | Submission Open

Keywords: analytic function; univalent function; harmonic function; differential subordination; differential superordination; strong differential subordination; strong differential superordination; fuzzy differential subordination; fuzzy differential superordination; differential operator; integral operator; differential– integral operator; linear operator

(This special issue belongs to the Section Mathematics)

New Advances in New-Generation Communication and Symmetry

edited by

Jia Hou

Jun Li

and

Xueqin Jiang

submission deadline 30 Apr 2024 | 8 articles | Viewed by 10921 | Submission Open

Keywords: communications and networking; matrix and orthogonal transform; modulation and coding; intelligent reflecting surfaces (IRS); communication protocols; secure communication systems

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

Next-Generation Green Wireless Networks and Industrial IoT

edited by

Mohammed H. Alsharif

and

Md. Farhad Hossain

submission deadline 30 Apr 2024 | 3 articles | Viewed by 10623 | Submission Open

Keywords: 5G/6G; green communications; energy-efficient wireless communications; smart cities; sustainable networks; smart grid communications; energy harvesting; machine learning; IoT

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

The Dark Universe: The Harbinger of a Major Discovery

edited by

Konstantin Zioutas

submission deadline 30 Apr 2024 | 6 articles | Viewed by 9311 | 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)

Cryptography and Blockchain Technologies—Present Applications and Future Researches

edited by

Remigiusz Wiśniewski

and

Aniruddha Bhattacharjya

submission deadline 30 Apr 2024 | 5 articles | Viewed by 9118 | Submission Open

Keywords: symmetric key encryption; symmetric key authentication; homomorphic encryption; novel cryptographic protocols; cryptanalysis; deanonymization; quantum cryptography; code-based cryptography; lattice-based cryptography; hash-based cryptography; isogeny-based cryptography; multivariate cryptography; fuzzy cryptography; lightweight cryptography; blockchain and networking protocols (IPv4 vs. IPv6); blockchain as a service (BaaS); distributed ledger technology (DLT) architectures; blockchain cybersecurity and privacy; zero-knowledge proof (ZKP)

(This special issue belongs to the Section Computer)

Symmetrical Mathematical Computation in Fluid Dynamics

edited by

Yifei Guan

and

Jian Wu

submission deadline 30 Apr 2024 | 8 articles | Viewed by 8814 | Submission Open

Keywords: symmetry; mathematical computation of fluid dynamics; symmetry constraints; symmetry breaking; transitional flow; reduced-order modeling; data-driven models

(This special issue belongs to the Section Mathematics)

Fixed Point Theory and Its Applications Dedicated to the Memory of Professor William Arthur Kirk

edited by

Alexander Zaslavski

submission deadline 30 Apr 2024 | 9 articles | Viewed by 7752 | 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)

Symmetry in Mathematical Functional Equations

edited by

Rabha W. Ibrahim

submission deadline 30 Apr 2024 | 7 articles | Viewed by 7447 | Submission Open

Keywords: symmetry in functional differential equations (real or complex); symmetry in functional integral equations (real or complex) ; fractional functional differential equations (real or complex) ; fractional functional integral equation (real or complex) ; fractal formula ; evolution equations ; implicit functions ; bifurcation ; quantum calculus ; k-calculus ; applications

(This special issue belongs to the Section Mathematics)

Communication Engineering and Symmetry: Frontiers, Trends, and Challenges

edited by

Tao Zhou

submission deadline 30 Apr 2024 | 5 articles | Viewed by 6552 | Submission Open

Keywords: communications; antennas and propagation; signal processing; Internet of Things; artificial intelligence

(This special issue belongs to the Section Computer)

Advanced Analytical and Numerical Methods for Fractional Initial and Boundary Value Problems with Symmetry/Asymmetry

edited by

Muhammad I. Syam

Abdul-Majid Wazwaz

and

Mohammed Al-Refai

submission deadline 30 Apr 2024 | 6 articles | Viewed by 5808 | Submission Open

Keywords: symmetric methods; fractional derivatives; initial-value problems; boundary-value problems; difference equations; integro-differential equations; mathematical biology; control theory

(This special issue belongs to the Section Mathematics)

Asymmetric and Symmetric Study on Number Theory and Cryptography

edited by

Ákos Pintér

and

Andrea Huszti

submission deadline 30 Apr 2024 | 5 articles | Viewed by 5670 | Submission Open

Keywords: number theory; Diophantine equations; recurrence sequences; special polynomials; cryptographic primitives and protocols; applied cryptography

(This special issue belongs to the Section Mathematics)

Mathematical Theories, Models and Methods in Applied Sciences: Deterministic, Stochastic and Symmetry Perspectives

edited by

Renhai Wang

, Wei Gong and

Pengyu Chen

submission deadline 30 Apr 2024 | 6 articles | Viewed by 5289 | Submission Open

Keywords: symmetry; PDEs; ODEs; dynamical systems; numerical analysis; materials science; nonlinear analysis; stochastic analysis

(This special issue belongs to the Section Mathematics)

Three-Dimensional Dynamical Systems and Symmetry

edited by

Cristian Lazureanu

and

Dana Constantinescu

submission deadline 30 Apr 2024 | 4 articles | Viewed by 4587 | 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)

Topological Quantum Materials and Applications

edited by

Guixin Cao

and Yuriy Dedkov

submission deadline 30 Apr 2024 | 3 articles | Viewed by 4529 | Submission Open

Keywords: topological quantum physics and materials; antiferromagnetic materials; ferromagnetism; 2D quantum materials; quantum phenomena in advanced energy materials; superconductivity and superconducting materials; spintronic devices

(This special issue belongs to the Section Physics)

Challenges and Trends in the Application of Descriptive Geometry Field under the Current Paradigm of Computer – Assisted Design (CAD)

edited by

Manuel Prado-Velasco

and

Laura García-Ruesgas

submission deadline 30 Apr 2024 | 4 articles | Viewed by 4112 | Submission Open

(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 Apr 2024 | 5 articles | Viewed by 4103 | Submission Open

Keywords: fluid dynamics; gas dynamics; aerodynamics; combustion; propulsion; flow control; autonomous systems

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

Time Series Forecasting in Physical Geography

edited by

Babak Mohammadi

and

Mohammed Achite

submission deadline 30 Apr 2024 | 1 articles | Viewed by 3952 | Submission Open

Keywords: physical geography; hydrology; time series forecasting; artificial intelligence; geographic information systems; satellite image analysis; evolutionary computation; earth observation; water resources management

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

Umbral Calculus, Operator Theory and Symmetry: Applications of Different Mathematical Languages

edited by

Silvia Licciardi

and

Giuseppe Dattoli

submission deadline 30 Apr 2024 | 4 articles | Viewed by 3840 | Submission Open

(This special issue belongs to the Section Mathematics)

Symmetry in Statistical Mechanics and Complex Dynamical Systems

edited by

Vladimir García-Morales

submission deadline 30 Apr 2024 | 3 articles | Viewed by 3659 | Submission Open

Keywords: cellular automata; coupled map lattices; nonlinear partial differential equations; entropy; partition function; complexity; nonlinear oscillators; exactly solved models; computer simulations

(This special issue belongs to the Section Physics)

Symmetries and Fuzzy Differential Equations

edited by

Ghulam Mustafa

and

Emmanuel Kengne

submission deadline 30 Apr 2024 | 1 articles | Viewed by 2795 | Submission Open

Keywords: differential equations; partial differential equations; system of differential equations; conformal symmetries; lie symmetries; noether symmetries; fluid mechanics; fuzzy differential equations; fractional order differential equations; fuzzy fractional order differential equations; numerical solutions; gravity researches; quantum mechanics; systems of differential equations; systems of partial differential equations; systems of fractional order differential equations; systems of fractional order partial differential equations; soliton theory

(This special issue belongs to the Section Mathematics)

Advanced Optimization Methods and Their Applications

edited by Jianchao Bai, Qiyu Jin and Yuchao Tang

submission deadline 30 Apr 2024 | 4 articles | Viewed by 2579 | Submission Open

Keywords: development of novel models for various image processing and analysis problems; optimization methods in machine learning; stochastic first-order methods; inexact optimization methods; operator splitting methods and their theoretical analysis; modern optimization methods for linear and nonlinear inverse problems

(This special issue belongs to the Section Mathematics)

Geometric Function Theory and Special Functions II

edited by

Erhan Deniz

submission deadline 30 Apr 2024 | 3 articles | Viewed by 1961 | 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)

The Symmetry/Asymmetry Phenomenon in the Fault Diagnosis Process of Industrial Machinery

edited by Gang Yu and

Shiqian Chen

submission deadline 30 Apr 2024 | 3 articles | Viewed by 1768 | 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)

Computer-Aided Geometric Design and Matrices

edited by

Esmeralda Mainar

and

Antonio Falco

submission deadline 30 Apr 2024 | 1 articles | Viewed by 1639 | Submission Open

Keywords: matrices; total positivity; high relative accuracy; subdivision; splines and NURBS; shape analysis; isogeometric analysis; interpolation; approximation and smoothing; wavelets and multi-resolution methods; computer graphics; virtual design

(This special issue belongs to the Section Mathematics)

Topological Graph Theory and Discrete Geometry II

edited by

Serge Lawrencenko

submission deadline 30 Apr 2024 | 1 articles | Viewed by 1530 | Submission Open

(This special issue belongs to the Section Mathematics)

Symmetry/Asymmetry of Ultrasonic Guided Waves in Structural Health Monitoring and Non-destructive Testing

edited by

Lina Draudviliene

Renaldas Raišutis

and

Serge Dos Santos

submission deadline 30 Apr 2024 | 1 articles | Viewed by 1445 | Submission Open

Keywords: signal processing methods; symmetric and asymmetric modes; phase and group velocity dispersion curves; reliability evaluation of methods; uncertainties; guided-wave modelling and propagation; multimodal guided-wave representation; time reversal-based imaging; coded excitations; non-destructive testing (NDT); structure health monitoring (SHM); on-site and in-service structural diagnosis; damage diagnosis; damage identification and evaluation; prognosis

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

Advances in Mathematical Models and Partial Differential Equations

edited by Jianwei Dong, Ningan Lai, Jianli Liu and

Manwai Yuen

submission deadline 30 Apr 2024 | 2 articles | Viewed by 1357 | Submission Open

Keywords: partial differential equations; lifespan; global existence; blowup; symmetry reduction; exact solutions; smoothness; regularity

(This special issue belongs to the Section Mathematics)

Symmetry in Computing Algorithms and Applications

edited by Lei Yue and

Jinhua Zhang

submission deadline 30 Apr 2024 | 1 articles | Viewed by 1321 | 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)

Symmetry in Advances of Constituent Quark Models

edited by

Chunsheng An

submission deadline 30 Apr 2024 | 1 articles | Viewed by 885 | Submission Open

Keywords: hadron spectroscopy; exotic hadrons; hadronic molecule; multiquark components in hadrons; quark model

(This special issue belongs to the Section Physics)

Symmetry in Gravity Theories and Cosmology

edited by

Sunil Kumar Tripathy

, Dipanjali Behera and

Hooman Moradpour

submission deadline 30 Apr 2024 | 1 articles | Viewed by 884 | Submission Open

Keywords: wormholes; Casimir wormholes; modified theories of gravity; bouncing cosmological models; observational constraints on modified gravity theories; dark energy models; Noether symmetry; scalar field cosmology; exact solutions

(This special issue belongs to the Section Physics)

Recent Advances in Double Beta Decay Investigations: In Honor of Prof. Sabin Stoica at His 70th Anniversary

edited by

Mihai Horoi

Hiro Ejiri

and

Andrei Neacsu

submission deadline 30 Apr 2024 | 1 articles | Viewed by 855 | Submission Open

Keywords: neutrino physics; double beta decays; nuclear structure; weak interaction; beta decays

(This special issue belongs to the Section Physics)

The Equation of State of Compact Stars

edited by

David Edwin Alvarez Castillo

submission deadline 30 Apr 2024 | Viewed by 728 | Submission Open

Keywords: matter in canonical neutron star; the role of quantities such as nuclear incompressibility; nuclear symmetry energy; and nuclear effective mass; Nature of phase transitions in hybrid compact stars: first order; crossover; critical end points in the QCD phase diagram; dense matter in heavy ion collisions; hybrid stars in disconnected branches of the mass– radius diagram; quark stars with and without strangeness; impact of the EoS in compact star cooling processes; EoS with hyperon and boson content; hot dense nuclear matter in proto-compact stars and in mergers; methods of EoS determination from observables: Bayesian analyses; neural networks; machine learning approaches; effective field theories; dense matter in rotating compact stars; probing the compact star EoS with gravitational waves; the equation of state under the framework of alternative theories of gravity; dark matter in the compact star EoS

(This special issue belongs to the Section Physics)

Asymmetric and Symmetric Dark Matter

edited by

Luca Visinelli

and Basabendu Barman

submission deadline 30 Apr 2024 | Viewed by 333 | Submission Open

Keywords: cosmology; dark matter; asymmetric dark matter; direct and indirect detection; model building; dark radiation; collider signatures; indirect probes of the dark sector; axions; weakly interacting massive particles; hidden sectors; dark photon

(This special issue belongs to the Section Physics)

Advances in Dynamics, Planning and Control of Spacecraft and Related Systems

edited by

Xiande Wu

Dong Ye

, Yunhua Wu, Yan Xiao and

Yaen Xie

submission deadline 30 Apr 2024 | Viewed by 321 | 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 in Higgs Boson

edited by

Loukas Gouskos

submission deadline 30 Apr 2024 | Viewed by 316 | Submission Open

Keywords: standard model; Higgs boson; electroweak symmetry breaking; Yukawa coupling; fermions; bosons; LHC; CERN

(This special issue belongs to the Section Physics)

Symmetry in Image Encryption

edited by

Sabri My Abdelouahed

and Yahyaouy Ali

submission deadline 30 Apr 2024 | Viewed by 254 | Submission Open

Keywords: image encryption; symmetric cryptography; encryption vulnerabilities; image protection; image privacy; symmetry-based encryption; symmetric key cryptography; robust encryption; visual information security; cryptographic techniques; symmetry-based decryption; deep learning for image encryption

(This special issue belongs to the Section Computer)

Symmetry in Mathematical Models

edited by

Dušan Nikezić

and

Vesna Borka Jovanović

submission deadline 30 Apr 2024 | Viewed by 245 | Submission Open

Keywords: artificial intelligence; machine learning; neural network; data analysis; big data in astrophysics; nonlinear dynamics; biomathematics; mathematical modelling; chaos; symmetry

(This special issue belongs to the Section Mathematics)

Optimization of Asymmetric and Symmetric Algorithms

edited by

Simone Fiori

, Di Wang and Shuo Zhuang

submission deadline 30 Apr 2024 | Viewed by 233 | Submission Open

Keywords: cryptography; encryption; decryption; asymmetric algorithms; symmetric algorithms; key generation; key management; public key cryptography; private key cryptography; digital signatures; hash functions; block ciphers

(This special issue belongs to the Section Computer)

Nonlinear Dynamics: Symmetry or Asymmetry Nonlinear Dynamical Systems

edited by

Shun Zhong

, Xiaodong Wang and

Lun Liu

submission deadline 30 Apr 2024 | Viewed by 173 | Submission Open

Keywords: nonlinear dynamics; mechanical design; fault diagnosis; vibration system; symmetry or asymmetry; deep learning

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

Symmetry/Asymmetry in Two-Dimensional Materials: Synthesis and Applications

edited by Apoorva Chaturvedi

submission deadline 30 Apr 2024 | Viewed by 164 | Submission Open

Keywords: magnetic two-dimensional materials; processing of two-dimensional materials; state-of-the-art synthesis of two-dimensional materials; future applications of two-dimensional materials; industry integration of two-dimensional materials

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

Electrical and Electronic Engineering with Symmetry/Asymmetry

edited by Jun Xie and Yan Li

submission deadline 30 Apr 2024 | Viewed by 112 | Submission Open

Keywords: new topology and geometry design; in-depth physical/chemical process study; novel modelling and computing theories and methods; design of new experiment and test result analysis; system/component/material research

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

Selected Papers from the 19th National Conference on Magnetism and Magnetic Materials

edited by

Wuming Liu

submission deadline 30 Apr 2024 | Viewed by 85 | Submission Open

Keywords: magnetism; magnetic materials; magnetic thin films; nanomagnetism

(This special issue belongs to the Section Physics)

Symmetry in Optoelectronic Information Technology and Imaging

edited by Linfei Chen

submission deadline 30 Apr 2024 | Viewed by 72 | Submission Open

Keywords: image encoding; information security; computational imaging; imaging quality; running speed; symmetry; asymmetry

(This special issue belongs to the Section Computer)

The Qualitative Theory of Functional Differential Equations and their Applications

edited by

Osama Moaaz

and

Higinio Ramos

submission deadline 15 May 2024 | 7 articles | Viewed by 9280 | Submission Open

Keywords: Functional differential equations ; Delay/neutral/advanced differential equations ; Ordinary differential equation ; Difference equation; Partial differential equation ; Symmetry in differential equations ; Numerical analysis; numerical modeling ; Approximation; stability; oscillation; boundedness; periodicity; and asymptotic properties

(This special issue belongs to the Section Mathematics)

Symmetry in Finite Element Modeling and Mechanics

edited by

Sina Niazi

and

Rodrigo C. V. Coelho

submission deadline 15 May 2024 | 4 articles | Viewed by 5677 | 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)

Asymmetric Centers in Optically Active Molecules Containing a Heteroatom

edited by

György Keglevich

and

Péter Bagi

submission deadline 15 May 2024 | 2 articles | Viewed by 4332 | 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)

Computer Science and Symmetry/Asymmetry: Feature Papers

edited by

Alexander Shelupanov

submission deadline 15 May 2024 | 4 articles | Viewed by 4065 | Submission Open

(This special issue belongs to the Section Computer)

Symmetry/Asymmetry in Artificial Intelligence

edited by

Zhifeng Wang

submission deadline 15 May 2024 | Viewed by 130 | Submission Open

Keywords: symmetry/asymmetry in deep learning; machine learning; transfer learning; computer vision; natural language processing; speech processing; pattern recognition

(This special issue belongs to the Section Computer)

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