Edit Profile (opens in new tab) Ullah, Saif Co-Author Distance Author ID: ullah.saif Published as: Ullah, Saif Documents Indexed: 29 Publications since 2015 Co-Authors: 48 Co-Authors with 27 Joint Publications 1,979 Co-Co-Authors all top 5 Co-Authors 0 single-authored 19 Khan, Muhammad Altaf 8 Farooq, Muhammad Umar 3 Farhan, Muhammad 2 Alzahrani, Ebraheem O. 2 Fatmawati, Fatmawati 2 Gómez-Aguilar, José Francisco 2 Gul, Taza 2 Okosun, Kazeem Oare 2 Shah, Syed Azhar Ali 1 Al-Hossain, Abdullah Y. 1 Alam Khan, Najeeb 1 Ali, Aatif 1 Ali, Muzaher 1 Alrabaiah, Hussam 1 Alshaheri, Ahmed 1 Altanji, Mohamed 1 Azizah, Muftiyatul 1 Badshah, Noor 1 Bajwa, Sana 1 Băleanu, Dumitru I. 1 Bashir, Neelam 1 Buhader, Anum Aish 1 Butt, Azhar Iqbal Kashif 1 Chu, Yuming 1 Ghaffar, Fazal 1 Hammouch, Zakia 1 Han, Yajuan 1 Hussain, Fawad 1 Islam, Saeed 1 Ismail, Muhammad Faizal 1 Jan, Rashid 1 Khan, Mursala 1 Khan, Yasir 1 Manzoor, Humera 1 Muhammad, Shah 1 Munir, Taj 1 Oud, Mohammed A. Aba 1 Peng, Yunfang 1 Shah, Kamil 1 Shah, Nehad Ali 1 Shah, Syed Wasim 1 Sumelka, Wojciech 1 Tanveer, Muhammad 1 Tlili, Iskander 1 Tuzzahrah, Ghulam Fatima 1 Ullah, Sajjad 1 Windarto 1 Xiao, Yuyan all top 5 Serials 3 Mathematical Methods in the Applied Sciences 3 Chaos, Solitons and Fractals 3 Discrete and Continuous Dynamical Systems. Series S 3 AIMS Mathematics 2 Hacettepe Journal of Mathematics and Statistics 2 Advances in Difference Equations 1 Physica A 1 Applied Mathematics and Computation 1 Kybernetika 1 Mathematics and Computers in Simulation 1 Ricerche di Matematica 1 Optimal Control Applications & Methods 1 Fractals 1 Journal of Biological Systems 1 Nonlinear Analysis. Real World Applications 1 Mathematical Biosciences and Engineering 1 Applied and Computational Mathematics 1 International Journal of Computing Science and Mathematics all top 5 Fields 16 Ordinary differential equations (34-XX) 15 Biology and other natural sciences (92-XX) 7 Real functions (26-XX) 3 Dynamical systems and ergodic theory (37-XX) 3 Calculus of variations and optimal control; optimization (49-XX) 3 Numerical analysis (65-XX) 3 Fluid mechanics (76-XX) 2 Partial differential equations (35-XX) 2 Classical thermodynamics, heat transfer (80-XX) 2 Systems theory; control (93-XX) 1 Integral transforms, operational calculus (44-XX) 1 Integral equations (45-XX) 1 Operator theory (47-XX) 1 Statistics (62-XX) 1 Mechanics of particles and systems (70-XX) 1 Statistical mechanics, structure of matter (82-XX) 1 Operations research, mathematical programming (90-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 24 Publications have been cited 258 times in 187 Documents Cited by ▼ Year ▼ A fractional model for the dynamics of TB virus. Zbl 1442.92182Ullah, Saif; Altaf Khan, Muhammad; Farooq, Muhammad 34 2018 A fractional model for the dynamics of tuberculosis infection using Caputo-Fabrizio derivative. Zbl 1439.92182Ullah, Saif; Khan, Muhammad Altaf; Farooq, Muhammad; Hammouch, Zakia; Baleanu, Dumitru 31 2020 A new fractional model for tuberculosis with relapse via Atangana-Baleanu derivative. Zbl 1442.92150Altaf Khan, Muhammad; Ullah, Saif; Farooq, Muhammad 30 2018 A dynamical model of asymptomatic carrier zika virus with optimal control strategies. Zbl 1430.92045Khan, M. A.; Shah, Syed Wasim; Ullah, Saif; Gómez-Aguilar, J. F. 29 2019 Mathematical formulation of hepatitis B virus with optimal control analysis. Zbl 1425.92133Ullah, Saif; Khan, Muhammad Altaf; Gómez-Aguilar, J. F. 23 2019 The dynamics of Zika virus with Caputo fractional derivative. Zbl 1425.37054Khan, Muhammad Altaf; Ullah, Saif; Farhan, Muhammad 17 2019 A fractional order pine wilt disease model with Caputo-Fabrizio derivative. Zbl 1448.92308Khan, Muhammad Altaf; Ullah, Saif; Okosun, K. O.; Shah, Kamil 17 2018 Modeling and analysis of tuberculosis (TB) in Khyber Pakhtunkhwa, Pakistan. Zbl 07316744Ullah, Saif; Khan, Muhammad Altaf; Farooq, Muhammad; Gul, Taza 11 2019 A fractional order mathematical model for COVID-19 dynamics with quarantine, isolation, and environmental viral load. Zbl 1494.92119Aba Oud, Mohammed A.; Ali, Aatif; Alrabaiah, Hussam; Ullah, Saif; Khan, Muhammad Altaf; Islam, Saeed 10 2021 Fractional order SEIR model with generalized incidence rate. Zbl 1484.92118Khan, Muhammad Altaf; Ullah, Sajjad; Ullah, Saif; Farhan, Muhammad 10 2020 Fractional order SIR model with generalized incidence rate. Zbl 1484.92117Khan, Muhammad Altaf; Ismail, Muhammad; Ullah, Saif; Farhan, Muhammad 10 2020 A fractional model for the dynamics of competition between commercial and rural banks in Indonesia. Zbl 1448.91168Fatmawati; Khan, Muhammad Altaf; Azizah, Muftiyatul; Windarto; Ullah, Saif 9 2019 A fractional order HBV model with hospitalization. Zbl 1442.34087Ullah, Saif; Khan, Muhammad Altaf; Farooq, Muhammad; Gul, Taza; Hussain, Fawad 8 2020 A fractional order model for hepatitis B virus with treatment via Atangana-Baleanu derivative. Zbl 07571856Shah, Syed Azhar Ali; Khan, Muhammad Altaf; Farooq, Muhammad; Ullah, Saif; Alzahrani, Ebraheem O. 7 2020 A fractional model for the dynamics of tuberculosis (TB) using Atangana-Baleanu derivative. Zbl 1442.34086Ullah, Saif; Khan, Muhammad Altaf; Farooq, Muhammad; Alzahrani, Ebraheem O. 3 2020 Optimal control analysis of the effect of treatment, isolation and vaccination on hepatitis B virus. Zbl 1451.92191Khan, Muhammad Altaf; Shah, Syed Azhar Ali; Ullah, Saif; Okosun, Kazeem Oare; Farooq, Muhammad 2 2020 New idea of Atangana-Baleanu time-fractional derivative to advection-diffusion equation. Zbl 1472.35443Tlili, Iskander; Shah, Nehad Ali; Ullah, Saif; Manzoor, Humera 1 2021 A higher-order unconditionally stable scheme for the solution of fractional diffusion equation. Zbl 1473.65258Ghaffar, Fazal; Ullah, Saif; Badshah, Noor; Alam Khan, Najeeb 1 2021 Numerical investigation with stability analysis of time-fractional Korteweg-de Vries equations. Zbl 1486.65221Ullah, Saif; Butt, A. I. K.; Buhader, Anum Aish 1 2021 A new model of dengue fever in terms of fractional derivative. Zbl 1470.92299Fatmawati; Jan, Rashid; Khan, Muhammad Altaf; Khan, Yasir; Ullah, Saif 1 2020 Improved ratio-type estimators using maximum and minimum values under simple random sampling scheme. Zbl 1333.62043Khan, Mursala; Ullah, Saif; Al-Hossain, Abdullah Y.; Bashir, Neelam 1 2015 Study of velocity and shear stress for unsteady flow of incompressible Oldroyd-B fluid between two concentric rotating circular cylinders. Zbl 1488.76006Ullah, Saif; Tanveer, Muhammad; Bajwa, Sana 1 2019 Numerical simulation of Jeffery-Hamel flow of Bingham plastic fluid and heat transfer in the presence of magnetic field. Zbl 1425.76016Ara, A.; Khan, N. A.; Sultan, F.; Ullah, S. 1 2019 Heuristics for single machine scheduling problem with family setup times. Zbl 1453.90073Peng, Yunfang; Han, Yajuan; Xiao, Yuyan; Ullah, Saif 1 2017 A fractional order mathematical model for COVID-19 dynamics with quarantine, isolation, and environmental viral load. Zbl 1494.92119Aba Oud, Mohammed A.; Ali, Aatif; Alrabaiah, Hussam; Ullah, Saif; Khan, Muhammad Altaf; Islam, Saeed 10 2021 New idea of Atangana-Baleanu time-fractional derivative to advection-diffusion equation. Zbl 1472.35443Tlili, Iskander; Shah, Nehad Ali; Ullah, Saif; Manzoor, Humera 1 2021 A higher-order unconditionally stable scheme for the solution of fractional diffusion equation. Zbl 1473.65258Ghaffar, Fazal; Ullah, Saif; Badshah, Noor; Alam Khan, Najeeb 1 2021 Numerical investigation with stability analysis of time-fractional Korteweg-de Vries equations. Zbl 1486.65221Ullah, Saif; Butt, A. I. K.; Buhader, Anum Aish 1 2021 A fractional model for the dynamics of tuberculosis infection using Caputo-Fabrizio derivative. Zbl 1439.92182Ullah, Saif; Khan, Muhammad Altaf; Farooq, Muhammad; Hammouch, Zakia; Baleanu, Dumitru 31 2020 Fractional order SEIR model with generalized incidence rate. Zbl 1484.92118Khan, Muhammad Altaf; Ullah, Sajjad; Ullah, Saif; Farhan, Muhammad 10 2020 Fractional order SIR model with generalized incidence rate. Zbl 1484.92117Khan, Muhammad Altaf; Ismail, Muhammad; Ullah, Saif; Farhan, Muhammad 10 2020 A fractional order HBV model with hospitalization. Zbl 1442.34087Ullah, Saif; Khan, Muhammad Altaf; Farooq, Muhammad; Gul, Taza; Hussain, Fawad 8 2020 A fractional order model for hepatitis B virus with treatment via Atangana-Baleanu derivative. Zbl 07571856Shah, Syed Azhar Ali; Khan, Muhammad Altaf; Farooq, Muhammad; Ullah, Saif; Alzahrani, Ebraheem O. 7 2020 A fractional model for the dynamics of tuberculosis (TB) using Atangana-Baleanu derivative. Zbl 1442.34086Ullah, Saif; Khan, Muhammad Altaf; Farooq, Muhammad; Alzahrani, Ebraheem O. 3 2020 Optimal control analysis of the effect of treatment, isolation and vaccination on hepatitis B virus. Zbl 1451.92191Khan, Muhammad Altaf; Shah, Syed Azhar Ali; Ullah, Saif; Okosun, Kazeem Oare; Farooq, Muhammad 2 2020 A new model of dengue fever in terms of fractional derivative. Zbl 1470.92299Fatmawati; Jan, Rashid; Khan, Muhammad Altaf; Khan, Yasir; Ullah, Saif 1 2020 A dynamical model of asymptomatic carrier zika virus with optimal control strategies. Zbl 1430.92045Khan, M. A.; Shah, Syed Wasim; Ullah, Saif; Gómez-Aguilar, J. F. 29 2019 Mathematical formulation of hepatitis B virus with optimal control analysis. Zbl 1425.92133Ullah, Saif; Khan, Muhammad Altaf; Gómez-Aguilar, J. F. 23 2019 The dynamics of Zika virus with Caputo fractional derivative. Zbl 1425.37054Khan, Muhammad Altaf; Ullah, Saif; Farhan, Muhammad 17 2019 Modeling and analysis of tuberculosis (TB) in Khyber Pakhtunkhwa, Pakistan. Zbl 07316744Ullah, Saif; Khan, Muhammad Altaf; Farooq, Muhammad; Gul, Taza 11 2019 A fractional model for the dynamics of competition between commercial and rural banks in Indonesia. Zbl 1448.91168Fatmawati; Khan, Muhammad Altaf; Azizah, Muftiyatul; Windarto; Ullah, Saif 9 2019 Study of velocity and shear stress for unsteady flow of incompressible Oldroyd-B fluid between two concentric rotating circular cylinders. Zbl 1488.76006Ullah, Saif; Tanveer, Muhammad; Bajwa, Sana 1 2019 Numerical simulation of Jeffery-Hamel flow of Bingham plastic fluid and heat transfer in the presence of magnetic field. Zbl 1425.76016Ara, A.; Khan, N. A.; Sultan, F.; Ullah, S. 1 2019 A fractional model for the dynamics of TB virus. Zbl 1442.92182Ullah, Saif; Altaf Khan, Muhammad; Farooq, Muhammad 34 2018 A new fractional model for tuberculosis with relapse via Atangana-Baleanu derivative. Zbl 1442.92150Altaf Khan, Muhammad; Ullah, Saif; Farooq, Muhammad 30 2018 A fractional order pine wilt disease model with Caputo-Fabrizio derivative. Zbl 1448.92308Khan, Muhammad Altaf; Ullah, Saif; Okosun, K. O.; Shah, Kamil 17 2018 Heuristics for single machine scheduling problem with family setup times. Zbl 1453.90073Peng, Yunfang; Han, Yajuan; Xiao, Yuyan; Ullah, Saif 1 2017 Improved ratio-type estimators using maximum and minimum values under simple random sampling scheme. Zbl 1333.62043Khan, Mursala; Ullah, Saif; Al-Hossain, Abdullah Y.; Bashir, Neelam 1 2015 all cited Publications top 5 cited Publications all top 5 Cited by 422 Authors 22 Khan, Muhammad Altaf 11 Qureshi, Sania 10 Băleanu, Dumitru I. 8 Guo, Youming 8 Li, Tingting 8 Ullah, Saif 7 Atangana, Abdon 6 Fatmawati, Fatmawati 6 Rezapour, Shahram 6 Yusuf, Abdullahi A. 5 Alzahrani, Ebraheem O. 5 Bonyah, Ebenezer 5 Gómez-Aguilar, José Francisco 5 Mohammadi, Hakimeh 4 Inc, Mustafa 4 Jajarmi, Amin 3 Abdeljawad, Thabet 3 Ackora-Prah, Joseph 3 Alzabut, Jehad O. 3 Farhan, Muhammad 3 Farooq, Muhammad Umar 3 Khan, Ilyas 3 Kongson, Jutarat 3 Rachik, Mostafa 3 Saad, Khaled Mohammed 3 Shaikh, Asif Ali 3 Singh, Jagdev 3 Sudsutad, Weerawat 3 Thaiprayoon, Chatthai 3 Yuldashev, Tursun Kamaldinovich 2 Abduvahobov, Tokhirzhon Akbarali ogli 2 Acay, Bahar 2 Aljhani, Sami 2 Almadiy, Abdulrhman A. 2 Alomari, Abedel-Karrem 2 Asamoah, Joshua Kiddy K. 2 Balatif, Omar 2 Baş, Erdal 2 Escobar-Jiménez, Ricardo Fabricio 2 Gul, Taza 2 Guo, Zhongkai 2 Hammouch, Zakia 2 Huo, Hai-Feng 2 Jan, Rashid 2 Jarad, Fahd 2 Kumam, Poom 2 Kumar, Devendra 2 Kumar, Sunil 2 Lahrouz, Aadil 2 Muhammad, Taseer 2 Ndenda, Joseph P. 2 Njagarah, John Boscoh H. 2 Noorani, Mohd Salmi Mohd 2 Obsu, Legesse Lemecha 2 Okosun, Kazeem Oare 2 Ozarslan, Ramazan 2 Peter, Olumuyiwa James 2 Santamaria, Fidel 2 Settati, Adel 2 Shah, Zahir 2 Sooppy Nisar, Kottakkaran 2 Su, Yongmei 2 Uçar, Sümeyra 2 Vázquez-Guerrero, P. 2 Xiang, Hong 2 Yang, Liangli 1 Abdo, Mohammed Salem 1 Abdullaev, Obidjon Khayrullayevich 1 Abdullah Alkanhal, Tawfeeq 1 Abdullah, Farah Aini 1 Abdullah, Saleem 1 Abdullah, Tariq Q. S. 1 Abidemi, Afeez 1 Adarkwa, Samuel Akwasi 1 Addai, Emmanuel 1 Adeel, Muhammad 1 Adekunle, Adeshina I. 1 Adenuga, Juliet I. 1 Adewole, Matthew Olayiwola 1 Afriyie, Cecilia 1 Aghdam, Yones Esmaeelzade 1 Agiza, Hamdy N. 1 Ahmad, Aqeel 1 Ahmad, Riaz 1 Ahmad, Wisal 1 Ahmad, Zubair 1 Ahmadian, Ali 1 Ajide, Kazeem B. 1 Akgül, Ali 1 Akindutire, Roselyn Opeyemi 1 Al-Refai, Mohammed 1 Albalawi, Kholoud Saad 1 Alharthi, Nadiyah Hussain 1 Ali, Aatif 1 Ali, Farhad 1 Ali, M. Syed 1 Ali, Saeed M. 1 Aliyu, Aliyu Isa 1 Alkahtani, Badr Saad T. 1 Alsadi, Wadhah Ahmed ...and 322 more Authors all top 5 Cited in 57 Serials 26 Chaos, Solitons and Fractals 15 Advances in Difference Equations 12 Physica A 12 AIMS Mathematics 10 Fractals 8 Discrete and Continuous Dynamical Systems. Series S 7 Mathematical Biosciences and Engineering 6 Journal of Computational and Applied Mathematics 6 Journal of Applied Mathematics and Computing 6 International Journal of Biomathematics 5 Discrete Dynamics in Nature and Society 5 International Journal of Applied and Computational Mathematics 4 Applied Mathematics and Computation 4 Mathematics and Computers in Simulation 4 Journal of Function Spaces 3 Journal of Mathematical Biology 3 Communications in Nonlinear Science and Numerical Simulation 3 International Journal of Differential Equations 2 Journal of Mathematical Analysis and Applications 2 Journal of Biological Systems 2 Lobachevskii Journal of Mathematics 2 Nonlinear Analysis. Real World Applications 2 Journal of Applied Mathematics 2 Symmetry 2 Chelyabinskiĭ Fiziko-Matematicheskiĭ Zhurnal 1 Computers & Mathematics with Applications 1 ZAMP. Zeitschrift für angewandte Mathematik und Physik 1 International Journal of Mathematics and Mathematical Sciences 1 Journal of Differential Equations 1 Journal of Optimization Theory and Applications 1 Rendiconti del Circolo Matemàtico di Palermo. Serie II 1 Applied Numerical Mathematics 1 Applied Mathematical Modelling 1 SIAM Journal on Applied Mathematics 1 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 1 Computational and Applied Mathematics 1 Filomat 1 Annals of Mathematics and Artificial Intelligence 1 Complexity 1 Abstract and Applied Analysis 1 Chaos 1 Applied Sciences 1 Qualitative Theory of Dynamical Systems 1 International Journal of Nonlinear Sciences and Numerical Simulation 1 Differential Equations 1 Discrete and Continuous Dynamical Systems. Series B 1 Applied Mathematics E-Notes 1 Journal of Biological Dynamics 1 Applications and Applied Mathematics 1 Journal of Physics A: Mathematical and Theoretical 1 Advances in Mathematical Physics 1 Journal of Probability and Statistics 1 Journal of Applied Mathematics & Informatics 1 Journal of Mahani Mathematical Research Center 1 Journal of Applied Analysis and Computation 1 Epidemiologic Methods 1 Open Mathematics all top 5 Cited in 25 Fields 125 Biology and other natural sciences (92-XX) 111 Ordinary differential equations (34-XX) 47 Real functions (26-XX) 20 Numerical analysis (65-XX) 19 Partial differential equations (35-XX) 18 Calculus of variations and optimal control; optimization (49-XX) 16 Dynamical systems and ergodic theory (37-XX) 14 Statistical mechanics, structure of matter (82-XX) 11 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 10 Systems theory; control (93-XX) 6 Operator theory (47-XX) 5 Measure and integration (28-XX) 4 Integral equations (45-XX) 3 Special functions (33-XX) 3 Fluid mechanics (76-XX) 2 Integral transforms, operational calculus (44-XX) 2 Mechanics of particles and systems (70-XX) 2 Information and communication theory, circuits (94-XX) 1 Difference and functional equations (39-XX) 1 Approximations and expansions (41-XX) 1 Probability theory and stochastic processes (60-XX) 1 Statistics (62-XX) 1 Computer science (68-XX) 1 Classical thermodynamics, heat transfer (80-XX) 1 Operations research, mathematical programming (90-XX) Citations by Year