Chaos, Solitons & Fractals

2002 - 2025

Current editor(s): Stefano Boccaletti and Stelios Bekiros

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2020, volume 139, articles C

Interaction of a three-level atom and a field with a time-varying frequency in the context of triangular well potentials: An exact treatment

Bahaaudin Raffah, K. Berrada, S. Abdel-khalek, E.M. Khalil, Mohamed Ridza Wahiddin and Yas Al-Hadeethi

Complexity and proper quasi-weakly almost periodic points

Lidong Wang, Nan Li, Hui Wang and Jianhua Liang

Estimation of near-bed sediment concentrations in turbulent flow beyond normality

Chi-Hsiang Huang, Christina W. Tsai and Kuan-Ting Wu

Permutation transition entropy: Measuring the dynamical complexity of financial time series

Xiaojun Zhao, Mengfan Ji, Na Zhang and Pengjian Shang

Not all interventions are equal for the height of the second peak

Joost Jorritsma, Tim Hulshof and Júlia Komjáthy

An epidemiological approach to insurgent population modeling with the Atangana–Baleanu fractional derivative

Olusola Kolebaje, Oyebola Popoola, Muhammad Altaf Khan and Oluwole Oyewande

Travel time analysis in the Chinese coupled aviation and high-speed rail network

Yiqiao Wang, Qiaoyi Lu, Xianbin Cao, Xuesong Zhou, Vito Latora, Lu Carol Tong and Wenbo Du

Simple estimation method for the second-largest Lyapunov exponent of chaotic differential equations

Shuang Zhou and Xingyuan Wang

Extended detrended fluctuation analysis of sound-induced changes in brain electrical activity

A.N. Pavlov, A.I. Dubrovsky, A.A. Koronovskii , O.N. Pavlova, O.V. Semyachkina-Glushkovskaya and J. Kurths

Multifractal behavior in return and volatility series of Bitcoin and gold in comparison

Şahin Telli and Hongzhuan Chen

Rényi’s spectra of urban form for different modalities of input data

Mahmoud Saeedimoghaddam, T.F. Stepinski and Anna Dmowska

A memristive chaotic oscillator with controllable amplitude and frequency

Xin Zhang, Chunbiao Li, Yudi Chen, Herbert H.C. Iu and Tengfei Lei

On complex dynamic investigations of a piecewise smooth nonlinear duopoly game

S.S. Askar and A. Al-khedhairi

Synchronization features of target wave structures with an incoherent center

A.V. Bukh, G.I. Strelkova and V.S. Anishchenko

Chaotic fluctuations in graphs with amplification

Stefano Lepri

Dynamics of a revised neural mass model in the stop-signal task

Weijie Ye

Stochastic permanence of an epidemic model with a saturated incidence rate

Ghulam Hussain, Amir Khan, Mostafa Zahri and Gul Zaman

Stability analysis for generalized fractional differential systems and applications

Jing Ren and Chengbo Zhai

Nonlocal conservation laws, nonlocal symmetries and exact solutions of an integrable soliton equation

Subhankar Sil, T. Raja Sekhar and Dia Zeidan

Effect of scaling equipment on U-10 players tennis serve during match-play: A nonlinear pedagogical approach

José María Gimenez-Egido, Enrique Ortega-Toro, José M Palao and Gema Torres-Luque

On new approach of fractional derivative by Mittag-Leffler kernel to neutral integro-differential systems with impulsive conditions

C. Ravichandran, K. Logeswari, Sumati Kumari Panda and Kottakkaran Sooppy Nisar

Dynamical behavior of a higher order stochastically perturbed SIRI epidemic model with relapse and media coverage

Qun Liu, Daqing Jiang, Tasawar Hayat, Ahmed Alsaedi and Bashir Ahmad

Evaluation and prediction of COVID-19 in India: A case study of worst hit states

Danish Rafiq, Suhail Ahmad Suhail and Mohammad Abid Bazaz

Epidemic in networked population with recurrent mobility pattern

Liang Feng, Qianchuan Zhao and Cangqi Zhou

Prediction and analysis of COVID-19 positive cases using deep learning models: A descriptive case study of India

Parul Arora, Himanshu Kumar and Bijaya Ketan Panigrahi

Results on approximate controllability for non-densely defined Hilfer fractional differential system with infinite delay

V. Vijayakumar and R. Udhayakumar

Imprecise probability through f-probability and its statistical physical implications

Won Sang Chung and Abdullah Algin

Coexistence of multi-scroll chaotic attractors for fractional systems with exponential law and non-singular kernel

D. Mathale, Emile F. Doungmo Goufo and M. Khumalo

Influence of isolation measures for patients with mild symptoms on the spread of COVID-19

Qiuhui Pan, Ting Gao and Mingfeng He

An age-structured model for coupling within-host and between-host dynamics in environmentally-driven infectious diseases

Jingjing Lu, Zhidong Teng and Yingke Li

Generation of localized patterns in two-component condensates trapped in variable shape optical lattices

Thierry Blanchard Ekogo, Maïk Delon Mboumba, Marius Romuald Kamsap, Gleann Juvet Ngounga Makoundit, Alain Brice Moubissi and Timoléon Crépin Kofané

Parameter estimation of uncertain differential equation with application to financial market

Xiangfeng Yang, Yuhan Liu and Gyei-Kark Park

Forecasting Brazilian and American COVID-19 cases based on artificial intelligence coupled with climatic exogenous variables

Ramon Gomes da Silva, Matheus Henrique Dal Molin Ribeiro, Viviana Cocco Mariani and Leandro dos Santos Coelho

Spatiotemporal chaos in cross coupled map lattice with dynamic coupling coefficient and its application in bit-level color image encryption

Mingxu Wang, Xingyuan Wang, Chunpeng Wang, Zhiqiu Xia, Hongyu Zhao, Suo Gao, Shuang Zhou and Nianmin Yao

Fractals and discrete dynamics associated to prime numbers

J.P. García-Sandoval

HIV and shifting epicenters for COVID-19, an alert for some countries

Emile F. Doungmo Goufo, Yasir Khan and Qasim Ali Chaudhry

The analysis of mode-locking topology in an SIR epidemic dynamics model with impulsive vaccination control: Infinite cascade of Stern-Brocot sum trees

Xiao-Bo Rao, Xu-Ping Zhao, Yan-Dong Chu, Jian-Gang Zhang and Jian-She Gao

Analysis of a mathematical model for COVID-19 population dynamics in Lagos, Nigeria

D. Okuonghae and A. Omame

A data driven epidemic model to analyse the lockdown effect and predict the course of COVID-19 progress in India

Bijay Kumar Sahoo and Balvinder Kaur Sapra

Results on controllability of Hilfer fractional neutral differential equations with infinite delay via measures of noncompactness

K. Kavitha, V. Vijayakumar and R. Udhayakumar

Stationary distribution and extinction of stochastic coronavirus (COVID-19) epidemic model

Anwarud Din, Amir Khan and Dumitru Baleanu

Identification of influential users on Twitter: A novel weighted correlated influence measure for Covid-19

Somya Jain and Adwitiya Sinha

A mathematical study on the spread of COVID-19 considering social distancing and rapid assessment: The case of Jakarta, Indonesia

Dipo Aldila, Sarbaz H.A. Khoshnaw, Egi Safitri, Yusril Rais Anwar, Aanisah R.Q. Bakry, Brenda M. Samiadji, Demas A. Anugerah, M. Farhan Alfarizi Gh, Indri D. Ayulani and Sheryl N. Salim

A new modelling of the COVID 19 pandemic

Vladislav Soukhovolsky, Anton Kovalev, Anne Pitt and Boris Kessel

Classifying of welding time series based on multi-scale time irreversibility analysis and extreme learning machine

Yong Huang, Dongqing Yang, Lei Wang and Kehong Wang

Comprehensive identification and isolation policies have effectively suppressed the spread of COVID-19

Yubo Huang, Yan Wu and Weidong Zhang

Existence and approximate controllability of Riemann-Liouville fractional integrodifferential systems with damping

Abdul Haq and N. Sukavanam

Image encryption application in a system for compounding self-excited and hidden attractors

Xuenan Peng and Yicheng Zeng

Robustness of LSTM neural networks for multi-step forecasting of chaotic time series

Matteo Sangiorgio and Fabio Dercole

Forecasting COVID-19 pandemic: A data-driven analysis

Khondoker Nazmoon Nabi

Rogue heat and diffusion waves

Cihan Bayindir

A novel mathematical approach of COVID-19 with non-singular fractional derivative

Sachin Kumar, Jinde Cao and Mahmoud Abdel-Aty

Modeling and forecasting the COVID-19 pandemic in India

Kankan Sarkar, Subhas Khajanchi and Juan J. Nieto

Analysis on novel coronavirus (COVID-19) using machine learning methods

Milind Yadav, Murukessan Perumal and M Srinivas

Determinants of the infection rate of the COVID-19 in the U.S. using ANFIS and virus optimization algorithm (VOA)

Ali Behnood, Emadaldin Mohammadi Golafshani and Seyedeh Mohaddeseh Hosseini

Bibliometric method for mapping the state of the art of scientific production in Covid-19

Mohamed El Mohadab, Belaid Bouikhalene and Said Safi

Analysis of a fractional HIV model with Caputo and constant proportional Caputo operators

Hatıra Günerhan, Hemen Dutta, Mustafa Ali Dokuyucu and Waleed Adel

Optimal Control Design of Impulsive SQEIAR Epidemic Models with Application to COVID-19

Zohreh Abbasi, Iman Zamani, Amir Hossein Amiri Mehra, Mohsen Shafieirad and Asier Ibeas

An empirical overview of nonlinearity and overfitting in machine learning using COVID-19 data

Yaohao Peng and Mateus Hiro Nagata

Partial derivative Nonlinear Global Pandemic Machine Learning prediction of COVID 19

Durga Prasad Kavadi, Rizwan Patan, Manikandan Ramachandran and Amir H. Gandomi

A SIR model assumption for the spread of COVID-19 in different communities

Ian Cooper, Argha Mondal and Chris G. Antonopoulos

Prediction of epidemic trends in COVID-19 with logistic model and machine learning technics

Peipei Wang, Xinqi Zheng, Jiayang Li and Bangren Zhu

Applications of machine learning and artificial intelligence for Covid-19 (SARS-CoV-2) pandemic: A review

Samuel Lalmuanawma, Jamal Hussain and Lalrinfela Chhakchhuak

A novel covid-19 mathematical model with fractional derivatives: Singular and nonsingular kernels

Zizhen Zhang

Stimulus classification using chimera-like states in a spiking neural network

Andrey V. Andreev, Mikhail V. Ivanchenko, Alexander N. Pisarchik and Alexander E. Hramov

A fractional numerical study on a chronic hepatitis C virus infection model with immune response

Khaled M. Saad, J.F. Gómez-Aguilar and Abdulrhman A. Almadiy

Non-linear characterization and trend identification of liquidity in China's new OTC stock market based on multifractal detrended fluctuation analysis

Ruzhen Yan, Ding Yue, Xudong Chen and Xu Wu

Modelling the downhill of the Sars-Cov-2 in Italy and a universal forecast of the epidemic in the world

Gabriele Martelloni and Gianluca Martelloni

Impact of intra and inter-cluster coupling balance on the performance of nonlinear networked systems

Jiachen Ye, Peng Ji, David Waxman, Wei Lin and Yamir Moreno

A method for analyzing correlation between multiscale and multivariate systems—Multiscale multidimensional cross recurrence quantification (MMDCRQA)

Qian He and Jingjing Huang

The evolution of cooperation affected by aspiration-driven updating rule in multi-games with voluntary participation

Jun Zhang, Bin Hu, Yi Jie Huang, Zheng Hong Deng and Tao Wu

A data-driven assessment of early travel restrictions related to the spreading of the novel COVID-19 within mainland China

Alberto Aleta, Qitong Hu, Jiachen Ye, Peng Ji and Yamir Moreno

Data augmentation based on dynamical systems for the classification of brain states

Yonatan Sanz Perl, Carla Pallavicini, Ignacio Perez Ipiña, Morten Kringelbach, Gustavo Deco, Helmut Laufs and Enzo Tagliazucchi

Interacting faults in california and hindu kush

Callum Muir, Jordan Cortez and Paolo Grigolini

Stability analysis and numerical simulation of SEIR model for pandemic COVID-19 spread in Indonesia

Suwardi Annas, Muh. Isbar Pratama, Muh. Rifandi, Wahidah Sanusi and Syafruddin Side

An analysis of COVID-19 spread based on fractal interpolation and fractal dimension

Cristina-Maria Păcurar and Bogdan-Radu Necula

Modeling the impact of non-pharmaceutical interventions on the dynamics of novel coronavirus with optimal control analysis with a case study

Saif Ullah and Muhammad Altaf Khan

Numerical analysis of pantograph differential equation of the stretched type associated with fractal-fractional derivatives via fractional order Legendre wavelets

Ashish Rayal and Sag Ram Verma

Spreading of infections on random graphs: A percolation-type model for COVID-19

Fabrizio Croccolo and H. Eduardo Roman

Assessment of lockdown effect in some states and overall India: A predictive mathematical study on COVID-19 outbreak

Tridip Sardar, Sk Shahid Nadim, Sourav Rana and Joydev Chattopadhyay

Chaotic solitons in driven sine-Gordon model

D.G. Levkov, V.E. Maslov and E.Ya. Nugaev

An analysis of Brazilian agricultural commodities using permutation – information theory quantifiers: The influence of food crisis

Fernando Henrique Antunes de Araujo, Lucian Bejan, Borko Stosic and Tatijana Stosic

Effects of intermittent coupling on synchronization

Thierry Njougouo, Gaël R. Simo, Patrick Louodop, Hilaire Fotsin and Pierre K. Talla

Renyi entropy and mutual information measurement of market expectations and investor fear during the COVID-19 pandemic

Salim Lahmiri and Stelios Bekiros

Study of ARIMA and least square support vector machine (LS-SVM) models for the prediction of SARS-CoV-2 confirmed cases in the most affected countries

Sarbjit Singh, Kulwinder Singh Parmar, Sidhu Jitendra Singh Makkhan, Jatinder Kaur, Shruti Peshoria and Jatinder Kumar

Statistically-based methodology for revealing real contagion trends and correcting delay-induced errors in the assessment of COVID-19 pandemic

Sebastián Contreras, Juan Pablo Biron-Lattes, H. Andrés Villavicencio, David Medina-Ortiz, Nyna Llanovarced-Kawles and Álvaro Olivera-Nappa

COVID-ABS: An agent-based model of COVID-19 epidemic to simulate health and economic effects of social distancing interventions

Petrônio C.L. Silva, Paulo V.C. Batista, Hélder S. Lima, Marcos A. Alves, Frederico G. Guimarães and Rodrigo C.P. Silva

Analytical and numerical study of the DNA dynamics arising in oscillator-chain of Peyrard-Bishop model

Khalid K. Ali, Carlo Cattani, J.F. Gómez-Aguilar, Dumitru Baleanu and M.S. Osman

The susceptible-unidentified infected-confirmed (SUC) epidemic model for estimating unidentified infected population for COVID-19

Chaeyoung Lee, Yibao Li and Junseok Kim

Computational solutions of the HIV-1 infection of CD4+T-cells fractional mathematical model that causes acquired immunodeficiency syndrome (AIDS) with the effect of antiviral drug therapy

Abdel-Haleem Abdel-Aty, Mostafa M.A. Khater, Hemen Dutta, Jamel Bouslimi and M. Omri

Elimination of spiral waves in a one-layer and two-layer network of pancreatic beta cells using a periodic stimuli

Karthikeyan Rajagopal, Zhouchao Wei, Irene Moroz, Anitha Karthikeyan and Prakash Duraisamy

Quantitative study of the relative effects of initial condition and model uncertainties on local predictability in a nonlinear dynamical system

Xuan Li, Ruiqiang Ding and Jianping Li

Study of HIV mathematical model under nonsingular kernel type derivative of fractional order

Ghazala Nazir, Kamal Shah, Amar Debbouche and Rahmat Ali Khan

Regarding new positive, bounded and convergent numerical solution of nonlinear time fractional HIV/AIDS transmission model

Manish Goyal, Haci Mehmet Baskonus and Amit Prakash

Study on the optimal stochastic resonance of different bistable potential models based on output saturation characteristic and application

Mengdi Li, Peiming Shi, Wenyue Zhang and Dongying Han

Simulating the dynamical features of evacuation governed by periodic vibrations

Xiaoyong Tian, Kun Li, Zengxin Kang, Yun Peng and Hongjun Cui

A new one-dimensional chaotic system with applications in image encryption

Xingyuan Wang, Yanpei Li and Jie Jin

The weakly nonlinear wave propagation theory for the Kelvin-Helmholtz instability in magnetohydrodynamics flows

Aly R. Seadawy, Muhammad Arshad and Dianchen Lu

Realization of a snowflaked interval as a Euclidean self-similar set

Fatma Diğdem Koparal, Yunus Özdemir, Derya Çelik and Şahin Koçak

Momentum managing epidemic spread and Bessel functions

Ivan Cherednik

Forecasting emergency department overcrowding: A deep learning framework

Fouzi Harrou, Abdelkader Dairi, Farid Kadri and Ying Sun

Existence and uniqueness results for a class of fractional stochastic neutral differential equations

Arzu Ahmadova and Nazim I. Mahmudov

A simple numerical method for pricing American power put options

Jung-Kyung Lee

Fractional order mathematical modeling of COVID-19 transmission

Shabir Ahmad, Aman Ullah, Qasem M. Al-Mdallal, Hasib Khan, Kamal Shah and Aziz Khan

Existence, uniqueness and continuous dependence of solutions to conformable stochastic differential equations

Guanli Xiao, JinRong Wang and O’Regan, Donal

Finite-approximate controllability of semilinear fractional stochastic integro-differential equations

N.I. Mahmudov

Closing editorial: Forecasting of epidemic spreading: lessons learned from the current covid-19 pandemic

Stefano Boccaletti, Gabriel Mindlin, William Ditto and Abdon Atangana

Dynamical stabilities of photosynthesis systems: Quantum chaos approach

P. Hosseinnezhad, S. Behnia and S. Fathizadeh

Solution of a COVID-19 model via new generalized Caputo-type fractional derivatives

Vedat Suat Erturk and Pushpendra Kumar

Mathematical modeling, analysis and numerical simulation of the COVID-19 transmission with mitigation of control strategies used in Cameroon

Seraphin Djaoue, Gabriel Guilsou Kolaye, Hamadjam Abboubakar, Ado Adamou Abba Ari and Irepran Damakoa

Optical solitons and conservation laws with generalized Kudryashov’s law of refractive index

Elsayed M.E. Zayed, Mohamed E.M. Alngar, Anjan Biswas, Mir Asma, Mehmet Ekici, Abdullah K. Alzahrani and Milivoj R. Belic

Continuous grey model with conformable fractional derivative

Wanli Xie, Caixia Liu, Wen-Ze Wu, Weidong Li and Chong Liu

Network structure reconstruction with symmetry constraint

Zihua Hang, Penglin Dai, Shanshan Jia and Zhaofei Yu

Experimental evaluation of the dynamic route map in the reset transition of memristive ReRAMs

David Maldonado, Mireia B. Gonzalez, Francesca Campabadal, Francisco Jimenez-Molinos, M. Moner Al Chawa, Stavros G. Stavrinides, Juan B. Roldan, Ronald Tetzlaff, Rodrigo Picos and Leon O. Chua

Symmetry breaking by power-law coupling

Biswabibek Bandyopadhyay, Taniya Khatun, Partha Sharathi Dutta and Tanmoy Banerjee

Localized modes in PT-symmetric sine-Gordon couplers with phase shift

Wajahat Ali Khan, Amir Ali, Zamin Gul, Saeed Ahmad and Arif Ullah

The third order melnikov function of a cubic integrable system under quadratic perturbations

R. Asheghi and A. Nabavi

Fractional cumulative residual Kullback-Leibler information based on Tsallis entropy

Xuegeng Mao, Pengjian Shang, Jianing Wang and Yi Yin

A novel CFD analysis to minimize the spread of COVID-19 virus in hospital isolation room

Suvanjan Bhattacharyya, Kunal Dey, Akshoy Ranjan Paul and Ranjib Biswas

Simulation of coronavirus disease 2019 (COVID-19) scenarios with possibility of reinfection

Egor Malkov

A non-homogeneous Markov early epidemic growth dynamics model. Application to the SARS-CoV-2 pandemic

Néstor Ruben Barraza, Gabriel Pena and Verónica Moreno

Dynamic tracking with model-based forecasting for the spread of the COVID-19 pandemic

Ian Cooper, Argha Mondal and Chris G. Antonopoulos

Results on the existence and controllability of fractional integro-differential system of order 1 < r < 2 via measure of noncompactness

M. Mohan Raja, V. Vijayakumar and R. Udhayakumar

Periodic travelling wave solutions for a reaction-diffusion system on landscape fitted domains

Sangkwon Kim, Jintae Park, Chaeyoung Lee, Darae Jeong, Yongho Choi, Soobin Kwak and Junseok Kim

Transition to coarse-grained order in coupled logistic maps: Effect of delay and asymmetry

Bhakti Parag Rajvaidya, Ankosh D. Deshmukh, Prashant M. Gade and Girish G. Sahasrabudhe

Quantum dynamics and relaxation in comb turbulent diffusion

A. Iomin

Quantifying the value of sprints in elite football using spatial cohesive networks

Emre Külah and Hande Alemdar

Structure Preserving Numerical Analysis of HIV and CD4+T-Cells Reaction Diffusion Model in Two Space Dimensions

Nauman Ahmed, Muhammad Rafiq, Waleed Adel, Hadi Rezazadeh, Ilyas Khan and Kottakkaran Sooppy Nisar