Special Issues

Fractal and Fractional 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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Contemporary Methods of Fractional Order Differential and Differential-Operator Equations submission deadline 30 Nov 2024 | 1 articles | Viewed by 720 | Submission Open
Keywords: fractional-order PDEs; fractional-order differential operator equations; fractional-order SDEs; fractional fokker– planck equation; fractional-order systems; inverse problems for fractional-order equations; stability of fractional-order systems; applied fractional-order equations; applied fractional-order systems; determination of order(s); determination of coefficients; solution spaces; representation of solution; fundamental solution; mittag– leffler- and wright-type functions; matrix-valued mittag– leffler and Wright functions
(This special issue belongs to the Section General Mathematics, Analysis)
Fractional Diffusion Equations: Numerical Analysis, Modeling and Application, 2nd Edition
edited by and Xiuying Li
submission deadline 30 Nov 2024 | Viewed by 107 | Submission Open
Keywords: fractional diffusion equations; fractional oscillating differential equations; nonsmoth functions; singular integral equations; fractional order system identification; modeling; application
(This special issue belongs to the Section Numerical and Computational Methods)
Design, Optimization and Applications for Fractional Chaotic System submission deadline 15 Dec 2024 | 2 articles | Viewed by 4473 | Submission Open
Keywords: applications of chaotic systems and circuits; chaos; fractional-order circuits; fractional-order systems; fractional-order models; fractional-order mem-elements; hyperchaos; optimization; synchronization
(This special issue belongs to the Section Engineering)
Continuous/Discrete-Time Fractional Systems: Modelling, Design and Estimation submission deadline 20 Dec 2024 | 2 articles | Viewed by 3013 | Submission Open
Keywords: autoregressive-moving average (ARMA); shift-invariant; scale-invariant; fBm; Liouville; Liouville– Caputo; Hadamard; Riemann– Liouville; Dzherbashian– Caputo; Grunwald– Letnikov; two-sided Riesz– Feller derivatives
(This special issue belongs to the Section General Mathematics, Analysis)
Advances in Fractional Modeling and Computation submission deadline 22 Dec 2024 | 14 articles | Viewed by 15528 | Submission Open
Keywords: fractional models in natural sciences; fractional models in economics and engineering; numerical algorithms and discretization; fractional differential systems with control theory; fractional dynamical systems; analysis of fractional models; stochastic methods for fractional models; Monte Carlo methods; Markov chains and processes; stochastic modeling and simulation; related fractional models
(This special issue belongs to the Section Numerical and Computational Methods)
Fractal and Fractional Analysis in Biomedical Sciences and Engineering submission deadline 25 Dec 2024 | 5 articles | Viewed by 7088 | Submission Open
Keywords: fractal and multifractal analysis; fractal lacunarity analysis; fractional calculus; fractional differential equations; convergence and stability analysis; biological system complexity; non-linear biosystem dynamics; medical image and data analysis; neural networks and graphs; long-term correlation tracking
(This special issue belongs to the Section Life Science, Biophysics)
Fractional-Order Circuits, Systems, and Signal Processing, 2nd Edition submission deadline 25 Dec 2024 | 3 articles | Viewed by 2897 | Submission Open
Keywords: fractional-order analog filters; oscillators; PLLs; fractional-order filters for digital signal and image processing; fractional-order neural networks for signal processing; modeling of fractance behavior using active/passive elements; fabrication of fractance elements; fractional-order modeling of batteries; fractional-order control systems; fractional-order bioimpedance modeling
(This special issue belongs to the Section Engineering)
Flow and Transport in Fractal Models of Rock Mechanics
edited by Kouqi Liu
submission deadline 25 Dec 2024 | 2 articles | Viewed by 2884 | Submission Open
Keywords: fractal models; rock mechanics; transport process; oil and gas industry; reservoir characterization; numerical solution
(This special issue belongs to the Section Engineering)
Fractional Calculus in Signal, Imaging Processing and Machine Learning
edited by
submission deadline 31 Dec 2024 | 9 articles | Viewed by 14737 | Submission Open
(This special issue belongs to the Section Engineering)
Recent Advances in Computational Physics with Fractional Application, 2nd Edition submission deadline 31 Dec 2024 | 11 articles | Viewed by 13314 | Submission Open
Keywords: stability analysis; integral equations; semi-analytical method; mathematical modeling; traveling wave solutions; analytical and numerical methods; soliton theory and its applications; fractional calculus and its applications; ordinary and partial differential equations; symmetry analysis and conservation laws; mathematical modeling of flow in porous media; high-order numerical differential formulas for fractional derivatives; numerical and computational methods in fractional differential equations
(This special issue belongs to the Section Mathematical Physics)
Modeling, Optimization, and Control of Fractional-Order Neural Networks and Nonlinear Systems
edited by , , Xin Wang and Xiao Cai
submission deadline 31 Dec 2024 | 10 articles | Viewed by 10227 | Submission Open
Keywords: fractional order neural networks; nonlinear systems; networked control systems; modelling and analysis; control and optimization; intelligent learning; multiagent systems
(This special issue belongs to the Section Engineering)
Fractal Theory and Models in Nonlinear Dynamics and Their Applications submission deadline 31 Dec 2024 | 8 articles | Viewed by 7521 | Submission Open
(This special issue belongs to the Section Mathematical Physics)
Recent Advances in Fractional Differential Equations and Their Applications, 2nd Edition
edited by , and Ting Gao
submission deadline 31 Dec 2024 | 7 articles | Viewed by 6468 | Submission Open
Keywords: nonlocal differential equation; fractional differential equation; stochastic differential equation; numerical method; machine learning methods
(This special issue belongs to the Section Numerical and Computational Methods)
Variational Problems and Fractional Differential Equations
edited by Zhisu Liu and Yu Su
submission deadline 31 Dec 2024 | 6 articles | Viewed by 5545 | Submission Open
Keywords: variational problems; fractional differential equations; priori estimate; existence; non-existence; and uniqueness; regularity and symmetry; stability; asymptotic behavior
(This special issue belongs to the Section General Mathematics, Analysis)
Fractional Equations and Calculation Methods in Exploration Seismology
edited by and Zeyu Zhao
submission deadline 31 Dec 2024 | 4 articles | Viewed by 4756 | Submission Open
Keywords: fractional wave equation; fractional Laplacian; calculation of fractional equation; seismic modeling; imaging and inversion
(This special issue belongs to the Section Mathematical Physics)
Heat Transfer and Diffusion Processes in Fractal Domains
edited by Qingyong Zhu
submission deadline 31 Dec 2024 | 2 articles | Viewed by 2607 | Submission Open
(This special issue belongs to the Section Engineering)
Recent Advances in the Equation with Nonlinear Fractional Diffusion
edited by Armando Gallegos and
submission deadline 31 Dec 2024 | 2 articles | Viewed by 1893 | Submission Open
(This special issue belongs to the Section General Mathematics, Analysis)
Complex Dynamics and Multifractal Analysis of Financial Markets
edited by Leonardo Henrique Silva Fernandes and
submission deadline 31 Dec 2024 | 1 articles | Viewed by 1748 | Submission Open
Keywords: complexity; cross-correlations; financial markets; multifractality; time series
(This special issue belongs to the Section Probability and Statistics)
Fractional Calculus, Quantum Calculus and Special Functions in Complex Analysis submission deadline 31 Dec 2024 | 1 articles | Viewed by 1371 | Submission Open
Keywords: univalent functions; special functions; fractional operator; q– operator; differential subordination; differential superordination; quantum calculus
(This special issue belongs to the Section General Mathematics, Analysis)
Anomalous Diffusion and Relaxations in Liquid Crystals: Fractal and Fractional Behavior
edited by Rafael Soares Zola and
submission deadline 31 Dec 2024 | 1 articles | Viewed by 1150 | Submission Open
Keywords: anomalous diffusion; non-Debye relaxation; modulated liquid crystal phases; coarsening dynamics; pattern formation; fractal and fractional calculus; anomalous scaling; memory effects
(This special issue belongs to the Section Complexity)
Recent Research in Fractional-Order Controllers: Selected Papers from the ICMASC’24 submission deadline 31 Dec 2024 | Viewed by 478 | Submission Open
Keywords: fractional-order control; FOPID; fractional calculus; modelling; implementation; stability analysis; control design
Fractional Calculus Operators and the Mittag-Leffler Function, 2nd Edition
edited by
submission deadline 31 Dec 2024 | 1 articles | Viewed by 429 | Submission Open
Keywords: fractional calculus; mittag-Leffler function; fractional integral operator; integral inequality; convex function; bound of operator
(This special issue belongs to the Section General Mathematics, Analysis)
Fractional Order Systems: Deterministic and Stochastic Analysis, 3rd Edition
edited by
submission deadline 31 Dec 2024 | Viewed by 195 | Submission Open
Keywords: fractional dynamical systems; fractional inverse problems; fractional mathematical models; fractional PDEs; fractional operators
Fractal Geometry and Dynamical Systems
edited by and Saurabh Verma
submission deadline 31 Dec 2024 | Viewed by 123 | Submission Open
Keywords: iterated function systems; julia and mandelbrot sets; self-similar sets and measures; self-affine and self-conformal sets/measures; fractal interpolation functions; quantization dimension; box dimension; hausdorff dimension and Lq dimensions
(This special issue belongs to the Section Geometry)
Current Trends on Fractional-Order Systems: Bifurcations, Synchronization, and Chaos
edited by Joaquin Alvarez and J. Pena-Ramirez
submission deadline 15 Jan 2025 | Viewed by 330 | Submission Open
Keywords: stability; oscillators; complex networks; chaos; bifurcation; synchronization; emergent behavior; fractional order neural networks
(This special issue belongs to the Section Complexity)
Fractal and Fractional in Geomaterials, 2nd Edition
edited by Yifei Sun
submission deadline 15 Jan 2025 | Viewed by 173 | Submission Open
Keywords: fractal media; fractional mechanics; micro-to-macro. geomaterials; nonconventional approach
(This special issue belongs to the Section Engineering)
New Trends on Generalized Fractional Calculus, 2nd Edition submission deadline 15 Jan 2025 | Viewed by 103 | Submission Open
Keywords: generalised fractional calculus; fractional calculus with general analytic kernels; ψ -fractional derivatives; weighted fractional derivatives; integral transforms; special functions; fractional inequalities; fractional ODE and PDE; initial and Boundary value problems
(This special issue belongs to the Section Numerical and Computational Methods)
Advances in Pattern Recognition—Image and Time Series Analyses—through Fractal Geometry and Complexity Theory
edited by Lucas C. Ribas, Leonardo F. S. Scabini and
submission deadline 17 Jan 2025 | 2 articles | Viewed by 2412 | Submission Open
Keywords: complex systems; pattern recognition; image processing; fractal descriptors; neural networks; network science
Fractional-Order Learning Systems: Theory, Algorithms, and Emerging Applications submission deadline 20 Jan 2025 | Viewed by 103 | Submission Open
Keywords: fractional-order learning systems; fractional-order calculus; signal processing; information processing; machine learning; control agorithms; modern circuits
(This special issue belongs to the Section Optimization, Big Data, and AI/ML)
Fractal Theory Applications in the Contact Interface of Mechanical Equipment
edited by Shuangfu Suo, Min Huang and Qi An
submission deadline 25 Jan 2025 | Viewed by 88 | Submission Open
Keywords: fractal theory; contact interface; contact mechanics; surface topography; tribological properties; cross-scale
(This special issue belongs to the Section Engineering)
Fractal Analysis and Its Applications in Rock Engineering
edited by , and Gaofeng Liu
submission deadline 31 Jan 2025 | 11 articles | Viewed by 10000 | Submission Open
Keywords: fractal analysis and modeling; fragmentation; rock mechanics; rock fractures; rock microstructures; rock engineering  ; geomechanical processes; engineering application
(This special issue belongs to the Section Engineering)
Fractional-Order Chaotic System: Control and Synchronization, 2nd Edition submission deadline 31 Jan 2025 | 5 articles | Viewed by 6759 | Submission Open
Keywords: fractional-order; complex systems; chaos; synchronization; control; stabilization; consensus; identification; modelling
(This special issue belongs to the Section Complexity)
Fractional Calculus and Nonlinear Analysis: Theory and Applications submission deadline 31 Jan 2025 | 4 articles | Viewed by 5464 | Submission Open
Keywords: fractional differential equation; fractional complicated system; fractional operator; modeling biological phenomena; nonlinear dynamics and chaos; fixed point theory; optimization; critical point theory; optimization; convex analysis
(This special issue belongs to the Section General Mathematics, Analysis)
Advances in Fractional-Order Chaotic and Complex Systems
edited by , and
submission deadline 31 Jan 2025 | 1 articles | Viewed by 1437 | Submission Open
Keywords: fractional-order theory; fractional-order systems; complex systems; chaos; chaotic systems; chaos applications; non-linear systems; neural networks
(This special issue belongs to the Section Complexity)
Metric Spaces with Its Application to Fractional Differential Equations
edited by Khurram Shabbir, Monica-Felicia Bota and
submission deadline 14 Feb 2025 | 6 articles | Viewed by 7200 | Submission Open
Keywords: metric spaces; fixed points theorems; well-posedness; stability; fractional differential equations with different kernels; fractal patterns; statistical convergence; decision making problems; numerical and computational methods; mathematical physics; mathematics in biology; intuitionistic fuzzy relations
(This special issue belongs to the Section General Mathematics, Analysis)
Fractional Elliptic and Parabolic Equations: Analysis and Related Topics
edited by Wenxiong Chen and Leyun Wu
submission deadline 14 Feb 2025 | 1 articles | Viewed by 642 | Submission Open
Keywords: fractional elliptic equations; fractional parabolic equations; fractional laplacian; non-local operators; variational method; multiplicity numerical analysis; applications of fractional equations; nonlinearity; symmetry; monotonicity; a priori estimate; existence; non-existence; uniqueness; classification; method of moving planes; sliding method; etc.
(This special issue belongs to the Section General Mathematics, Analysis)
Fractional Differential Equations: Computation and Modelling with Applications submission deadline 20 Feb 2025 | 9 articles | Viewed by 10932 | Submission Open
Keywords: fractional derivatives and integrals; fractional operators; fractal-fractional derivatives and integrals; mathematical modelling; computational efficient methods; uncertainty and artificial intelligence; nonsingular kernels
(This special issue belongs to the Section General Mathematics, Analysis)
Applications of Fractional-Order Calculus in Robotics, 2nd Edition submission deadline 20 Feb 2025 | Viewed by 125 | Submission Open
Keywords: fractional calculus; fractional control; fractional modeling; robotics; fractal manipulators
Advances in Fractional Order Systems and Robust Control, 2nd Edition
edited by
submission deadline 21 Feb 2025 | 3 articles | Viewed by 2221 | Submission Open
Keywords: fractional order systems; fractional differential equations; robust control; fractional controllers; stability analysis; modeling
(This special issue belongs to the Section Engineering)
Numerical Solution and Applications of Fractional Differential Equations, 2nd Edition
edited by , and
submission deadline 25 Feb 2025 | 7 articles | Viewed by 5592 | Submission Open
Keywords: numerical methods; mathematical modeling; fractional calculus; fractional differential equations; numerical analysis; fast algorithm
(This special issue belongs to the Section Numerical and Computational Methods)
Recent Advances in Fractional Fourier Transforms and Applications, 2nd Edition submission deadline 25 Feb 2025 | 1 articles | Viewed by 456 | Submission Open
Keywords: fractional Fourier transform; linear canonical transform; digital signal processing; fractional integral operator; partial differential equations
(This special issue belongs to the Section General Mathematics, Analysis)
Mathematical and Physical Analysis of Fractional Dynamical Systems
edited by Dimplekumar Chalishajar and Kasinathan Ravikumar
submission deadline 28 Feb 2025 | 9 articles | Viewed by 9791 | Submission Open
Keywords: functional differential and integral systems with applications; fractional PDE with applications; fractional numerical analysis and numerical simulations; oscillation/nonoscillation; feedback control and various stability analysis; boundary value problems; Markov chain process; jump processes; coupled dynamics; fractional processes; space-time fractional equations; fractional Brownian motion and Rosenblatt process; long-range dependence; time– space fractional vibration equation; convergence; eigenvalue; green function
(This special issue belongs to the Section Engineering)
Women’s Special Issue Series: Fractal and Fractional, 2nd Edition submission deadline 28 Feb 2025 | 2 articles | Viewed by 2784 | Submission Open
Keywords: fractals and fractional calculus; fractals and fractional calculus in computing; fractals and fractional calculus in mathematical physics; fractals and fractional calculus in biology and neurocomputing; fractals and fractional calculus in engineering; fractals and fractional calculus in economics; fratals and fractional calculus in educational technologies; fractional calculus and control; fractional calculus and optimization; fractional calculus and stability; fractional models and uncertainty; related fractional modeling
(This special issue belongs to the Section Complexity)
Fractal and Multifractal Analysis in Econometric Models and Empirical Finance
edited by
submission deadline 28 Feb 2025 | 1 articles | Viewed by 1901 | Submission Open
Keywords: multifractal analysis; hurst exponent; multiscale analysis; financial market efficiency; empirical finance
(This special issue belongs to the Section Mathematical Physics)
Fractals in Biophysics and Their Applications
edited by Anirban Bandyopadhyay
submission deadline 28 Feb 2025 | 2 articles | Viewed by 1372 | Submission Open
Keywords: quantum mechanics; quantum biology; biophysics; biophotonics; bioelectronics; neuroscience; brain dynamics; fractal analysis in medicine; water network in biology
(This special issue belongs to the Section Life Science, Biophysics)
Mathematical Description of Human Nervous System Using Fractals, Fractional and Integer Order Calculus
edited by
submission deadline 28 Feb 2025 | Viewed by 114 | Submission Open
Keywords: human nervous system; mathematical description using fractals; mathematical description using integer order and fractional order calculus
(This special issue belongs to the Section Life Science, Biophysics)
Advances in Fractional-Order Control with Special Focus to Power Systems
edited by
submission deadline 14 Mar 2025 | Viewed by 121 | Submission Open
Keywords: fractional-order controllers; fractional-order PID controllers; fractional-order systems; adaptive fractional-order control; robust control; advanced process control; power systems; control performance assessment; system identification
(This special issue belongs to the Section Engineering)
Advances in Fractional Order Derivatives and Their Applications, 3rd Edition
edited by
submission deadline 20 Mar 2025 | Viewed by 98 | Submission Open
Keywords: fractional order derivatives; fractional calculus; Caputo derivatives; Riemann– Liouville derivatives; numerical analysis; modeling; application
(This special issue belongs to the Section Numerical and Computational Methods)
Advances in Nonlinear Functional Analysis on Fractional Differential Equations, 2nd Edition
edited by
submission deadline 20 Mar 2025 | Viewed by 68 | Submission Open
Keywords: nonlinear functional analysis; control theory and applications; nonlinear fractional dynamic equations on timescale; fixed point theory; ecological systems; nonlinear dynamical systems; fractional calculus; solvability of infinite systems; sequence spaces and function spaces; nonlinear functionals and variational methods; nonlinear operators
(This special issue belongs to the Section General Mathematics, Analysis)
Fractal Analysis and Fractal Dimension in Materials Chemistry, 2nd Edition submission deadline 25 Mar 2025 | Viewed by 92 | Submission Open
Keywords: fractal dimension; fractal adsorption isotherms; catalysis; diffusion-limited reactions; fractions
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