Departamento de Matemática Aplicada
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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. 
Gausstype integral inequalities for interval and fuzzyintervalvalued functions
(Computational & Applied Mathematics, 2019) [Artigo]This study presents new Gauss's inequalities for interval and fuzzyintervalvalued functions using the Aumann's and Kaleva's improper integrals. The inequality for intervalvalued functions is based on the KulischMiranker ... 
Order Relations, Convexities, and Jensen's Integral Inequalities in Interval and Fuzzy Spaces
(Fuzzy Information Processing, Nafips 2018, 2018) [Trabalho apresentado em evento]This study presents new interval and fuzzy versions of the Jensen's integral inequality, which extend the classical Jensen's integral inequality for realvalued functions, using Aumann and Kaleva integrals. The inequalities ... 
Julia sets for Fibonacci endomorphisms of (2)
(Dynamical Systemsan International Journal, 2018) [Artigo]We study the dynamics of the family f(c)(x, y)= (xy + c, x) of endomorphisms of , where c is a real parameter. We investigate several topological properties of the forward and backward filled Julia sets. Then, through the ... 
Process flexibility and the chaining principle in lot sizing problems
(International Journal Of Production Economics, 2018) [Artigo]We analyse the value of process flexibility in the context of a shortterm deterministic lot sizing problem with backlogging, where several types of products can be made on several alternative resources. It may be very ... 
A Full Rank Condition for ContinuousTime Optimization Problems with Equality and Inequality Constraints
(TEMA (São Carlos), 2019) [Artigo]ABSTRACT First and second order necessary optimality conditions of the KarushKuhnTucker type are established for continuoustime optimization problems with equality and inequality constraints. A full rank type regularity ... 
A new approach to linear interval differential equations as a first step toward solving fuzzy differential
(Fuzzy Sets and Systems, 2018) [Artigo]This study uses a concept of interval differentiability, which was recently introduced, to formulate interval initial value problems involving linear interval differential equations. Differently from the approaches that ... 
Preface
(Mathematical Modeling and Computational Intelligence in Engineering Applications, 2016) [Editorial] 
Mathematical modeling and computational intelligence in engineering applications
(Mathematical Modeling and Computational Intelligence in Engineering Applications, 2016) [Livro]This book brings together a rich selection of studies in mathematical modeling and computational intelligence, with application in several fields of engineering, like automation, biomedical, chemical, civil, electrical, ... 
The integrated lot sizing and cutting stock problem with saw cycle constraints applied to furniture production
(Computers and Operations Research, 2017) [Artigo]The integrated lot sizing and cutting stock problem is studied in the context of furniture production. The goal is to capture the interdependencies between the determination of the lot size and of the cutting process in ...