Delfim F. M. Torres

ORCID

Publication Activity (10 Years)

Years Active: 2001-2024
Publications (10 Years): 64

Top Venues

Axioms

CoRR

Commun. Nonlinear Sci. Numer. Simul.

J. Comput. Appl. Math.

Publications

Om Kalthoum Wanassi, Delfim F. M. Torres
Modeling Blood Alcohol Concentration Using Fractional Differential Equations Based on the ψ-Caputo Derivative. CoRR (2024)
Marco Soares dos Santos, Rodrigo M. C. Bernardo, Joãov. Vidal, Ana Moreira, Delfim F. M. Torres, Carlos A. R. Herdeiro, Hélder A. Santos, Gil Gonçalves
Next-generation chemotherapy treatments based on black hole algorithms: From cancer remission to chronic disease management. Comput. Biol. Medicine 180 (2024)
Asmae Tajani, Fatima-Zahrae El Alaoui, Delfim F. M. Torres
Boundary controllability of Riemann-Liouville fractional semilinear equations. Commun. Nonlinear Sci. Numer. Simul. 131 (2024)
Mohamed Abdelaziz Zaitri, Cristiana J. Silva, Delfim F. M. Torres
An Analytic Method to Determine the Optimal Time for the Induction Phase of Anesthesia. Axioms 12 (9) (2024)
Mohamed Abdelaziz Zaitri, Hanaa Zitane, Delfim F. M. Torres
Pharmacokinetic/Pharmacodynamic anesthesia model incorporating psi-Caputo fractional derivatives. Comput. Biol. Medicine 167 (2023)
Ashish Rayal, Bhagawati Prasad Joshi, Mukesh Pandey, Delfim F. M. Torres
Numerical Investigation of the Fractional Oscillation Equations under the Context of Variable Order Caputo Fractional Derivative via Fractional Order Bernstein Wavelets. CoRR (2023)
Fahad Al Basir, Jahangir Chowdhury, Delfim F. M. Torres
Dynamics of a Double-Impulsive Control Model of Integrated Pest Management Using Perturbation Methods and Floquet Theory. Axioms 12 (4) (2023)
Amal S. Alali, Shahbaz Ali, Muhammad Adnan, Delfim F. M. Torres
On Sharp Bounds of Local Fractional Metric Dimension for Certain Symmetrical Algebraic Structure Graphs. Symmetry 15 (10) (2023)
Jorge Pinto, Sandra Vaz, Delfim F. M. Torres
A Lotka-Volterra type model analyzed through different techniques. CoRR (2023)
Hanaa Zitane, Delfim F. M. Torres
A class of fractional differential equations via power non-local and non-singular kernels: existence, uniqueness and numerical approximations. CoRR (2023)
Silvério S. Rosa, Delfim F. M. Torres
Fractional Modelling and Optimal Control of COVID-19 Transmission in Portugal. Axioms 11 (4) (2022)
Houssine Zine, El Mehdi Lotfi, Delfim F. M. Torres, Noura Yousfi
Taylor's Formula for Generalized Weighted Fractional Derivatives with Nonsingular Kernels. Axioms 11 (5) (2022)
Zoubida Ech-chaffani, Ahmed Aberqi, Touria Karite, Delfim F. M. Torres
Minimum Energy Problem in the Sense of Caputo for Fractional Neutral Evolution Systems in Banach Spaces. Axioms 11 (8) (2022)
Djalal Boucenna, Amar Chidouh, Delfim F. M. Torres
Existence Results for a Multipoint Fractional Boundary Value Problem in the Fractional Derivative Banach Space. Axioms 11 (6) (2022)
Houssine Zine, El Mehdi Lotfi, Delfim F. M. Torres, Noura Yousfi
Weighted Generalized Fractional Integration by Parts and the Euler-Lagrange Equation. Axioms 11 (4) (2022)
Mohamed A. Zaitri, Cristiana J. Silva, Delfim F. M. Torres
Stability Analysis of Delayed COVID-19 Models. Axioms 11 (8) (2022)
Somayeh Nemati, Pedro Miguel Lima, Delfim F. M. Torres
Numerical Solution of Variable-Order Fractional Differential Equations Using Bernoulli Polynomials. CoRR (2021)
Moulay Rchid Sidi Ammi, Mostafa Tahiri, Delfim F. M. Torres
Global Stability of a Caputo Fractional SIRS Model with General Incidence Rate. Math. Comput. Sci. 15 (1) (2021)
Delfim F. M. Torres
Cauchy's formula on nonempty closed sets and a new notion of Riemann-Liouville fractional integral on time scales. Appl. Math. Lett. 121 (2021)
Sandra Vaz, Delfim F. M. Torres
A dynamically-consistent nonstandard finite difference scheme for the SICA model. CoRR (2021)
Teklebirhan Abraha, Fahad Al Basir, Legesse Lemecha Obsu, Delfim F. M. Torres
Controlling crop pest with a farming awareness based integrated approach and optimal control. Comput. Math. Methods 3 (6) (2021)
Somayeh Nemati, Pedro Miguel Lima, Delfim F. M. Torres
Numerical solution of a class of third-kind Volterra integral equations using Jacobi wavelets. Numer. Algorithms 86 (2) (2021)
Marouane Mahrouf, Adnane Boukhouima, Houssine Zine, El Mehdi Lotfi, Delfim F. M. Torres, Noura Yousfi
Modeling and Forecasting of COVID-19 Spreading by Delayed Stochastic Differential Equations. Axioms 10 (1) (2021)
Somayeh Nemati, Delfim F. M. Torres
A new spectral method based on two classes of hat functions for solving systems of fractional differential equations and an application to respiratory syncytial virus infection. Soft Comput. 25 (9) (2021)
Sandra Vaz, Delfim F. M. Torres
A Discrete-Time Compartmental Epidemiological Model for COVID-19 with a Case Study for Portugal. Axioms 10 (4) (2021)
Sandra Vaz, Delfim F. M. Torres
A Discrete-Time Compartmental Epidemiological Model for COVID-19 with a Case Study for Portugal. CoRR (2021)
Delfim F. M. Torres
On a Non-Newtonian Calculus of Variations. Axioms 10 (3) (2021)
Bikash Gogoi, Utpal Kumar Saha, Bipan Hazarika, Delfim F. M. Torres, Hijaz Ahmad
Nabla Fractional Derivative and Fractional Integral on Time Scales. Axioms 10 (4) (2021)
Anwarud Din, Amir Khan, Anwar Zeb, Moulay Rchid Sidi Ammi, Mouhcine Tilioua, Delfim F. M. Torres
Hybrid Method for Simulation of a Fractional COVID-19 Model with Real Case Application. Axioms 10 (4) (2021)
Faïçal Ndaïrou, Delfim F. M. Torres
Mathematical Analysis of a Fractional COVID-19 Model Applied to Wuhan, Spain and Portugal. Axioms 10 (3) (2021)
Somayeh Nemati, Delfim F. M. Torres
Application of Bernoulli Polynomials for Solving Variable-Order Fractional Optimal Control-Affine Problems. CoRR (2020)
Somayeh Nemati, Delfim F. M. Torres
Application of Bernoulli Polynomials for Solving Variable-Order Fractional Optimal Control-Affine Problems. Axioms 9 (4) (2020)
Ana P. Lemos-Paião, Cristiana J. Silva, Delfim F. M. Torres, Ezio Venturino
Optimal Control of Aquatic Diseases: A Case Study of Yemen's Cholera Outbreak. J. Optim. Theory Appl. 185 (3) (2020)
Faïçal Ndaïrou, Delfim F. M. Torres
Distributed-Order Non-Local Optimal Control. Axioms 9 (4) (2020)
Somayeh Nemati, Pedro Miguel Lima, Delfim F. M. Torres
Numerical solution of a class of third-kind Volterra integral equations using Jacobi wavelets. CoRR (2020)
Moulay Rchid Sidi Ammi, Delfim F. M. Torres
Optimal control of a nonlocal thermistor problem with ABC fractional time derivatives. Comput. Math. Appl. 78 (5) (2019)
Hyunsoo Kim, Rathinasamy Sakthivel, Amar Debbouche, Delfim F. M. Torres
Traveling wave solutions of some important Wick-type fractional stochastic nonlinear partial differential equations. CoRR (2019)
Alexey B. Piunovskiy, Alexander Plakhov, Delfim F. M. Torres, Yi Zhang
Optimal Impulse Control of Dynamical Systems. SIAM J. Control. Optim. 57 (4) (2019)
Carlos Campos, Cristiana J. Silva, Delfim F. M. Torres
Numerical Optimal Control of HIV Transmission in Octave/MATLAB. CoRR (2019)
Somayeh Nemati, Pedro Miguel Lima, Delfim F. M. Torres
A numerical approach for solving fractional optimal control problems using modified hat functions. Commun. Nonlinear Sci. Numer. Simul. 78 (2019)
Somayeh Nemati, Delfim F. M. Torres
A new spectral method based on two classes of hat functions for solving systems of fractional differential equations and an application to respiratory syncytial virus infection. CoRR (2019)
Moulay Rchid Sidi Ammi, Ismail Jamiai, Delfim F. M. Torres
A finite element approximation for a class of Caputo time-fractional diffusion equations. Comput. Math. Appl. 78 (5) (2019)
Cristiana J. Silva, Delfim F. M. Torres
Stability of a fractional HIV/AIDS model. Math. Comput. Simul. 164 (2019)
Dafang Zhao, Guoju Ye, Wei Liu, Delfim F. M. Torres
Some inequalities for interval-valued functions on time scales. Soft Comput. 23 (15) (2019)
Abubakar Bello Salati, Mostafa Shamsi, Delfim F. M. Torres
Direct transcription methods based on fractional integral approximation formulas for solving nonlinear fractional optimal control problems. Commun. Nonlinear Sci. Numer. Simul. 67 (2019)
Dina Tavares, Ricardo Almeida, Delfim F. M. Torres
Combined fractional variational problems of variable order and some computational aspects. J. Comput. Appl. Math. 339 (2018)
Karam Allali, Sanaa Harroudi, Delfim F. M. Torres
Analysis and Optimal Control of an Intracellular Delayed HIV Model with CTL Immune Response. Math. Comput. Sci. 12 (2) (2018)
Jasmina Djordjevic, Cristiana J. Silva, Delfim F. M. Torres
A stochastic SICA epidemic model for HIV transmission. Appl. Math. Lett. 84 (2018)
Ravi P. Agarwal, Dumitru Baleanu, Juan J. Nieto, Delfim F. M. Torres, Yong Zhou
A survey on fuzzy fractional differential and optimal control nonlocal evolution equations. J. Comput. Appl. Math. 339 (2018)
Hayat Zouiten, Ali Boutoulout, Delfim F. M. Torres
Regional Enlarged Observability of Fractional Differential Equations with Riemann - Liouville Time Derivatives. Axioms 7 (4) (2018)
Ahmed Elsaid, Delfim F. M. Torres, Sachin Bhalekar, Abdelalim Elsadany, Amr Elsonbaty
Hyperchaotic Fractional-Order Systems and Their Applications. Complex. 2017 (2017)
Ana P. Lemos-Paião, Cristiana J. Silva, Delfim F. M. Torres
An epidemic model for cholera with optimal control treatment. J. Comput. Appl. Math. 318 (2017)
Benaoumeur Bayour, Delfim F. M. Torres
Existence of solution to a local fractional nonlinear differential equation. J. Comput. Appl. Math. 312 (2017)
Gul Zaman, Il Hyo Jung, Delfim F. M. Torres, Anwar Zeb
Mathematical Modeling and Control of Infectious Diseases. Comput. Math. Methods Medicine 2017 (2017)
Amar Chidouh, Delfim F. M. Torres
A generalized Lyapunov's inequality for a fractional boundary value problem. J. Comput. Appl. Math. 312 (2017)
Amar Debbouche, Juan J. Nieto, Delfim F. M. Torres
Optimal Solutions to Relaxation in Multiple Control Problems of Sobolev Type with Nonlocal Nonlinear Fractional Differential Equations. J. Optim. Theory Appl. 174 (1) (2017)
Dina Tavares, Ricardo Almeida, Delfim F. M. Torres
Constrained fractional variational problems of variable order. IEEE CAA J. Autom. Sinica 4 (1) (2017)
Xiaojun Yang, H. M. Srivastava, Delfim F. M. Torres, Yudong Zhang
Non-differentiable Solutions for Local Fractional Nonlinear Riccati Differential Equations. Fundam. Informaticae 151 (1-4) (2017)
Moulay Rchid Sidi Ammi, Delfim F. M. Torres
Galerkin spectral method for the fractional nonlocal thermistor problem. Comput. Math. Appl. 73 (6) (2017)
Salman Jahanshahi, Delfim F. M. Torres
A Simple Accurate Method for Solving Fractional Variational and Optimal Control Problems. J. Optim. Theory Appl. 174 (1) (2017)
Matheus J. Lazo, Delfim F. M. Torres
Variational calculus with conformable fractional derivatives. IEEE CAA J. Autom. Sinica 4 (2) (2017)
Dina Tavares, Ricardo Almeida, Delfim F. M. Torres
Caputo derivatives of fractional variable order: Numerical approximations. Commun. Nonlinear Sci. Numer. Simul. 35 (2016)
Manuel Duarte Ortigueira, Delfim F. M. Torres, Juan J. Trujillo
Exponentials and Laplace transforms on nonuniform time scales. Commun. Nonlinear Sci. Numer. Simul. 39 (2016)
Amira Rachah, Delfim F. M. Torres
Dynamics and Optimal Control of Ebola Transmission. Math. Comput. Sci. 10 (3) (2016)
Roman Denysiuk, Cristiana J. Silva, Delfim F. M. Torres
Multiobjective approach to optimal control for a tuberculosis model. Optim. Methods Softw. 30 (5) (2015)
Ricardo Almeida, Delfim F. M. Torres
Computing Hadamard type operators of variable fractional order. Appl. Math. Comput. 257 (2015)
M. Cristina Caputo, Delfim F. M. Torres
Duality for the left and right fractional derivatives. Signal Process. 107 (2015)
Nadia Benkhettou, Artur M. C. Brito da Cruz, Delfim F. M. Torres
A fractional calculus on arbitrary time scales: Fractional differentiation and fractional integration. Signal Process. 107 (2015)
Kambiz Razminia, Abolhassan Razminia, Delfim F. M. Torres
Pressure responses of a vertically hydraulic fractured well in a reservoir with fractal structure. Appl. Math. Comput. 257 (2015)
Amar Debbouche, Delfim F. M. Torres
Approximate controllability of fractional delay dynamic inclusions with nonlocal control conditions. Appl. Math. Comput. 243 (2014)
Cristiana J. Silva, Delfim F. M. Torres
Modeling TB-HIV Syndemic and Treatment. J. Appl. Math. 2014 (2014)
Shakoor Pooseh, Ricardo Almeida, Delfim F. M. Torres
Free time fractional optimal control problems. ECC (2013)
Shakoor Pooseh, Ricardo Almeida, Delfim F. M. Torres
Discrete direct methods in the fractional calculus of variations. Comput. Math. Appl. 66 (5) (2013)
Artur M. C. Brito da Cruz, Natália Martins, Delfim F. M. Torres
Symmetric differentiation on time scales. Appl. Math. Lett. 26 (2) (2013)
Matheus J. Lazo, Delfim F. M. Torres
The DuBois-Reymond Fundamental Lemma of the Fractional Calculus of Variations and an Euler-Lagrange Equation Involving Only Derivatives of Caputo. J. Optim. Theory Appl. 156 (1) (2013)
Paula Rodrigues, Cristiana J. Silva, Delfim F. M. Torres
Optimal control strategies for reducing the number of active infected individuals with tuberculosis. SIAM Conf. on Control and its Applications (2013)
Amar Debbouche, Delfim F. M. Torres
Approximate controllability of fractional nonlocal delay semilinear systems in Hilbert spaces. Int. J. Control 86 (9) (2013)
Helena Sofia Rodrigues, M. Teresa T. Monteiro, Delfim F. M. Torres
Bioeconomic perspectives to an optimal control dengue model. Int. J. Comput. Math. 90 (10) (2013)
Gastão S. F. Frederico, Delfim F. M. Torres
Fractional Noether's theorem with classical and Riemann-Liouville derivatives. CDC (2012)
Helena Sofia Rodrigues, M. Teresa T. Monteiro, Delfim F. M. Torres, Alan Zinober
Dengue disease, basic reproduction number and control. Int. J. Comput. Math. 89 (3) (2012)
Natália Martins, Delfim F. M. Torres
Necessary Optimality Conditions for Higher-Order Infinite Horizon Variational Problems on Time Scales. J. Optim. Theory Appl. 155 (2) (2012)
Tatiana Odzijewicz, Agnieszka B. Malinowska, Delfim F. M. Torres
Variable order fractional variational calculus for double integrals. CDC (2012)
Agnieszka B. Malinowska, Delfim F. M. Torres
Multiobjective fractional variational calculus in terms of a combined Caputo derivative. Appl. Math. Comput. 218 (9) (2012)
Moulay Rchid Sidi Ammi, Delfim F. M. Torres
Optimal control of nonlocal thermistor equations. Int. J. Control 85 (11) (2012)
Natália Martins, Delfim F. M. Torres
Higher-order infinite horizon variational problems in discrete quantum calculus. Comput. Math. Appl. 64 (7) (2012)
Tatiana Odzijewicz, Agnieszka B. Malinowska, Delfim F. M. Torres
Generalized fractional calculus with applications to the calculus of variations. Comput. Math. Appl. 64 (10) (2012)
Shakoor Pooseh, Ricardo Almeida, Delfim F. M. Torres
Approximation of fractional integrals by means of derivatives. Comput. Math. Appl. 64 (10) (2012)
Ewa Girejko, Delfim F. M. Torres
The existence of solutions for dynamic inclusions on time scales via duality. Appl. Math. Lett. 25 (11) (2012)
Jacky Cresson, Agnieszka B. Malinowska, Delfim F. M. Torres
Time scale differential, integral, and variational embeddings of Lagrangian systems. Comput. Math. Appl. 64 (7) (2012)
Rui A. C. Ferreira, Agnieszka B. Malinowska, Delfim F. M. Torres
Optimality conditions for the calculus of variations with higher-order delta derivatives. Appl. Math. Lett. 24 (1) (2011)
Nuno R. O. Bastos, Rui A. C. Ferreira, Delfim F. M. Torres
Discrete-time fractional variational problems. Signal Process. 91 (3) (2011)
Zbigniew Bartosiewicz, Natália Martins, Delfim F. M. Torres
The Second Euler-Lagrange Equation of Variational Calculus on Time Scales. Eur. J. Control 17 (1) (2011)
Maria do Rosário de Pinho, Fernando A. C. C. Fontes, Delfim F. M. Torres
Guest Editorial. Eur. J. Control 17 (1) (2011)
Helena Sofia Rodrigues, M. Teresa T. Monteiro, Delfim F. M. Torres, Alan Zinober
Dengue disease, basic reproduction number and control CoRR (2011)
Ricardo Almeida, Delfim F. M. Torres
Fractional variational calculus for nondifferentiable functions. Comput. Math. Appl. 61 (10) (2011)
Dorota Mozyrska, Delfim F. M. Torres
Modified optimal energy and initial memory of fractional continuous-time linear systems. Signal Process. 91 (3) (2011)
Agnieszka B. Malinowska, Natália Martins, Delfim F. M. Torres
Transversality conditions for infinite horizon variational problems on time scales. Optim. Lett. 5 (1) (2011)
Natália Martins, Delfim F. M. Torres
Generalizing the variational theory on time scales to include the delta indefinite integral. Comput. Math. Appl. 61 (9) (2011)
Helena Sofia Rodrigues, M. Teresa T. Monteiro, Delfim F. M. Torres
Optimal control of a dengue epidemic model with vaccination CoRR (2011)
Agnieszka B. Malinowska, Delfim F. M. Torres
A general backwards calculus of variations via duality. Optim. Lett. 5 (4) (2011)

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Publication Activity (10 Years)

Top Topics

Top Venues

Delfim F. M. Torres