Ricardo Almeida

Publication Activity (10 Years)

Years Active: 2009-2023
Publications (10 Years): 26

Top Topics

Differential Equations

Infinite Horizon

Optimal Control

Top Venues

Commun. Nonlinear Sci. Numer. Simul.

J. Comput. Appl. Math.

J. Optim. Theory Appl.

Publications

Natália Martins, Ricardo Almeida, Cristiana J. Silva, Moulay Rchid Sidi Ammi
Editorial for the Special Issue of Axioms "Calculus of Variations, Optimal Control and Mathematical Biology: A Themed Issue Dedicated to Professor Delfim F. M. Torres on the Occasion of His 50th Birthday". Axioms 12 (2) (2023)
Ricardo Almeida
A Numerical Scheme for a Generalized Fractional Derivative with Variable Order. DIS (2023)
Ricardo Almeida, Ewa Girejko, Luís Machado, Agnieszka B. Malinowska, Natália Martins
Multi-agent systems with memories under DoS attacks. ICARCV (2022)
Ricardo Almeida, Ravi P. Agarwal, Snezhana G. Hristova, Donal O'Regan
Stability of Gene Regulatory Networks Modeled by Generalized Proportional Caputo Fractional Differential Equations. Entropy 24 (3) (2022)
Martin Bohner, Snezhana G. Hristova, Agnieszka B. Malinowska, Maria Luísa Morgado, Ricardo Almeida
A generalized proportional Caputo fractional model of multi-agent linear dynamic systems via impulsive control protocol. Commun. Nonlinear Sci. Numer. Simul. 115 (2022)
Ricardo Almeida, Rafal Kamocki, Agnieszka B. Malinowska, Tatiana Odzijewicz
Optimal leader-following consensus of fractional opinion formation models. J. Comput. Appl. Math. 381 (2021)
Ricardo Almeida, Natália Martins
New Variational Problems with an Action Depending on Generalized Fractional Derivatives, the Free Endpoint Conditions, and a Real Parameter. Symmetry 13 (4) (2021)
Ricardo Almeida, Ravi P. Agarwal, Snezhana G. Hristova, Donal O'Regan
Quadratic Lyapunov Functions for Stability of the Generalized Proportional Fractional Differential Equations with Applications to Neural Networks. Axioms 10 (4) (2021)
Ricardo Almeida, Natália Martins, Cristiana J. Silva
Global Stability Condition for the Disease-Free Equilibrium Point of Fractional Epidemiological Models. Axioms 10 (4) (2021)
Ricardo Almeida, Rafal Kamocki, Agnieszka B. Malinowska, Tatiana Odzijewicz
On the necessary optimality conditions for the fractional Cucker-Smale optimal control problem. Commun. Nonlinear Sci. Numer. Simul. 96 (2021)
Ricardo Almeida, Ewa Girejko, Snezhana G. Hristova, Agnieszka B. Malinowska
On Leader-Following Consensus in Multi-Agent Systems with Discrete Updates at Random Times. Entropy 22 (6) (2020)
Ricardo Almeida, Maria Luísa Morgado
Analysis and numerical approximation of tempered fractional calculus of variations problems. J. Comput. Appl. Math. 361 (2019)
Ricardo Almeida, Agnieszka B. Malinowska, Tatiana Odzijewicz
Optimal Leader-Follower Control for the Fractional Opinion Formation Model. J. Optim. Theory Appl. 182 (3) (2019)
Avyt Asanov, Ricardo Almeida, Agnieszka B. Malinowska
Fractional differential equations and Volterra-Stieltjes integral equations of the second kind. Comput. Appl. Math. 38 (4) (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)
Ricardo Almeida
Analysis of a fractional SEIR model with treatment. Appl. Math. Lett. 84 (2018)
Ricardo Almeida, Agnieszka B. Malinowska, Tatiana Odzijewicz
An Extension of the Fractional Gronwall Inequality. RRNR (2018)
Ricardo Almeida, Maria Luísa Morgado
The Euler-Lagrange and Legendre equations for functionals involving distributed-order fractional derivatives. Appl. Math. Comput. 331 (2018)
Ricardo Almeida, Agnieszka B. Malinowska, Tatiana Odzijewicz
Fractional Opinion Formation Models with Leadership. MMAR (2018)
Ricardo Almeida
A Caputo fractional derivative of a function with respect to another function. Commun. Nonlinear Sci. Numer. Simul. 44 (2017)
Dina Tavares, Ricardo Almeida, Delfim F. M. Torres
Constrained fractional variational problems of variable order. IEEE CAA J. Autom. Sinica 4 (1) (2017)
Ricardo Almeida, Agnieszka B. Malinowska, Tatiana Odzijewicz
Non-invasive Control of the Fractional Hegselmann-Krause Type Model. RRNR (2017)
Ricardo Almeida
Variational Problems Involving a Caputo-Type Fractional Derivative. J. Optim. Theory Appl. 174 (1) (2017)
Dina Tavares, Ricardo Almeida, Delfim F. M. Torres
Caputo derivatives of fractional variable order: Numerical approximations. Commun. Nonlinear Sci. Numer. Simul. 35 (2016)
Ricardo Almeida
Variational Problems Involving a Caputo-Type Fractional Derivative. CoRR (2016)
Ricardo Almeida, Delfim F. M. Torres
Computing Hadamard type operators of variable fractional order. Appl. Math. Comput. 257 (2015)
Ricardo Almeida, Natália Martins
-difference equations of order α∈]2, 3[ with three-point boundary conditions. Commun. Nonlinear Sci. Numer. Simul. 19 (6) (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)
Ricardo Almeida
General necessary conditions for infinite horizon fractional variational problems. Appl. Math. Lett. 26 (7) (2013)
Ricardo Almeida, Agnieszka B. Malinowska
Generalized transversality conditions in fractional calculus of variations. Commun. Nonlinear Sci. Numer. Simul. 18 (3) (2013)
Ricardo Almeida
Fractional variational problems with the Riesz-Caputo derivative. Appl. Math. Lett. 25 (2) (2012)
Shakoor Pooseh, Ricardo Almeida, Delfim F. M. Torres
Approximation of fractional integrals by means of derivatives. Comput. Math. Appl. 64 (10) (2012)
Ricardo Almeida, Delfim F. M. Torres
Fractional variational calculus for nondifferentiable functions. Comput. Math. Appl. 61 (10) (2011)
Ricardo Almeida, Delfim F. M. Torres
Leitmann's direct method for fractional optimization problems. Appl. Math. Comput. 217 (3) (2010)
Ricardo Almeida
Connectedness and compactness on standard sets. Math. Log. Q. 56 (1) (2010)
Ricardo Almeida, Delfim F. M. Torres
Calculus of variations with fractional derivatives and fractional integrals. Appl. Math. Lett. 22 (12) (2009)