Departamento de Matemática Aplicada
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A Framework for the Sustainable Control and Optimization of Resources in Agriculture
(Proceedings of the IEEE Conference on Decision and Control, 2019) [Trabalho apresentado em evento]This article concerns the issue of optimizing strategies of resources management in Agriculture. The increasing human population, and the anthropogenic environmental impacts resulting from the current agricultural food ... 
A Constant Rank Constraint Qualification in ContinuousTime Nonlinear Programming
(SetValued and Variational Analysis, 2020) [Artigo]The paper addresses continuoustime nonlinear programming problems with equality and inequality constraints. First and second order necessary optimality conditions are obtained under a constant rank type constraint ... 
Complementary Romanovski–Routh Polynomials, Orthogonal Polynomials on the Unit Circle, and Extended Coulomb Wave Functions
(Results in Mathematics, 2020) [Artigo]In a recent paper (MartínezFinkelshtein et al. in Proc Am Math Soc 147:2625–2640, 2019) some interesting results were obtained concerning complementary Romanovski–Routh polynomials, a class of orthogonal polynomials on ... 
A Framework for the Sustainable Control and Optimization of Resources in Agriculture
(2019 Ieee 58th Conference On Decision And Control (cdc), 2019) [Trabalho apresentado em evento]This article concerns the issue of optimizing strategies of resources management in Agriculture. The increasing human population, and the anthropogenic environmental impacts resulting from the current agricultural food ... 
Linear Integral Equations with Discontinuous Kernels and the Representation of Operators on Regulated Functions on Time Scales
(Differential And Difference Equations With Applicati Ons, 2013) [Trabalho apresentado em evento]We present here the linear CauchyStieltjes integral on regulated functions with values in Banach spaces on time scales and represent a linear operator on the space of the regulated functions by means of an appropriate ... 
A New Sufficient Condition for Optimal Impulsive Control Problems
(2012 Ieee 51st Annual Conference On Decision And Control (cdc), 2012) [Trabalho apresentado em evento]In this article we introduce the concept of MPpseudoinvexity for general nonlinear impulsive optimal control problems whose dynamics are specified by measure driven control equations. This is a general paradigm in that, ... 
Necessary Conditions of Optimality for State Constrained Infinite Horizon Differential Inclusions
(2011 50th Ieee Conference On Decision And Control And European Control Conference (cdcecc), 2011) [Trabalho apresentado em evento]This article presents and discusses necessary conditions of optimality for infinite horizon dynamic optimization problems with inequality state constraints and set inclusion constraints at both endpoints of the trajectory. ... 
Electrostatic Problems with a Rational Constraint and Degenerate Lame Equations
(Potential Analysis, 2020) [Artigo]In this note we extend the classical relation between the equilibrium configurations of unit movable point charges in a plane electrostatic field created by these charges together with some fixed point charges and the ... 
WRONSKIANS OF FOURIER AND LAPLACE TRANSFORMS
(Transactions Of The American Mathematical Society, 2019) [Artigo]Associated with a given suitable function, or a measure, on R, we introduce a correlation function so that the Wronskian of the Fourier transform of the function is the Fourier transform of the corresponding correlation ... 
Fuzzy interval optimal control problem
(Fuzzy Sets and Systems, 2019) [Artigo]This paper proposes the discretetime fuzzy interval optimal control problem via singlelevel constrained fuzzy arithmetic. Fuzzy interval functions are established and allow us to evaluate the dynamics of the fuzzy interval ... 
Necessary conditions for continuoustime optimization under the Mangasarian–Fromovitz constraint qualification
(Optimization, 2019) [Artigo]In this paper, a Mangasarian–Fromovitztype regularity condition is presented with the purpose of obtaining first order necessary optimality conditions for continuoustime nonlinear programming problems with both equality ... 
Complementary romanovskirouth polynomials: From orthogonal polynomials on the unit circle to coulomb wave functions
(Proceedings of the American Mathematical Society, 2019) [Artigo]We consider properties and applications of a sequence of polynomials Known as complementary RomanovsKiRouth polynomials (CRR polynomials for short). These polynomials, which follow from the RomanovsKiRouth polynomials ... 
Quadrature rules from a R I I type recurrence relation and associated quadrature rules on the unit circle
(Numerical Algorithms, 2019) [Artigo]We consider the theoretical and numerical aspects of the quadrature rules associated with a sequence of polynomials generated by a special R II recurrence relation. We also look into some methods for generating the nodes ... 
Sufficient Optimality Conditions for Optimal Control Problems with State Constraints
(Numerical Functional Analysis and Optimization, 2019) [Artigo]It is wellknown in optimal control theory that the maximum principle, in general, furnishes only necessary optimality conditions for an admissible process to be an optimal one. It is also wellknown that if a process ... 
Face recognition using local mapped pattern and genetic algorithms
(ACM International Conference Proceeding Series, 2018) [Trabalho apresentado em evento]Facial recognition is one of the most used biometric technologies in automated systems which ensure a person’s identity for authorizes access and monitoring. The acceptance of face use has several advantages over other ... 
R II type recurrence, generalized eigenvalue problem and orthogonal polynomials on the unit circle
(Linear Algebra and Its Applications, 2019) [Artigo]We consider a sequence of polynomials {P n } n≥0 satisfying a special R II type recurrence relation where the zeros of P n are simple and lie on the real line. It turns out that the polynomial P n , for any n≥2, is the ... 
SDRE CONTROL APPLIED TO AN ELECTROMECHANICAL PENDULUM EXCITED BY A NONIDEAL MOTOR
(Proceedings Of The Asme International Design Engineering Technical Conferences And Computers And Information In Engineering Conference, 2013, Vol 8, 2014) [Trabalho apresentado em evento]The dynamical behavior of an electromechanical pendulum system is analyzed by means of the classical perturbation theory. A frequency response model of the system is obtained, and the number of unstable poles are determined ... 
Zeros of Dirichlet polynomials via a density criterion
(Journal Of Number Theory, 2019) [Artigo]We obtain a necessary and sufficient condition in order that a semiplane of the form R(s) > r, r is an element of R, is free of zeros of a given Dirichlet polynomial. The result may be considered a natural generalisation ... 
ON ZEROS OF PARAORTHOGONAL POLYNOMIALS
(Proceedings Of The American Mathematical Society, 2019) [Artigo]We prove some results concerning the behaviour of zeros of families of paraorthogonal polynomials on the unit circle. We establish an interlacing property of the zeros of some functions related to the paraorthogonal ... 
Sign regularity of Maclaurin coefficients of functions in the LaguerrePolya class
(Journal D Analyse Mathematique, 2019) [Artigo]We prove that the signs of the Maclaurin coefficients of a wide class of entire functions that belong to the LaguerrePolya class possess a regular behaviour.