Departamento de Matemática Aplicada
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RTS: Expert advisor for reaction trend system[Formula presented]
(Software Impacts, 2022) [Artigo]An empirical strategy, proposed by Wilder (1978), operates in any market conditions based on 4 action points calculated from historical prices. Here, we developed an upgraded system by improving the calculus of these points ... 
A necessary and sufficient condition for the stability of interval difference equation via interval Lyapunov equation
(Soft Computing, 2022) [Artigo]Interval difference equations can be used for modeling biological, economic, or physical systems that, due to lack of information or measurement errors in the input data from realworld applications, contain uncertainties. ... 
Reaction trend system with GARCH quantiles as action points[Formula presented]
(Expert Systems with Applications, 2022) [Artigo]Most trading systems developed from technical indicators are designed to operate in either trending or nontrending markets but they are rarely useful for both markets. A reaction trend system allows operations in both ... 
A New Multifilter Framework with Statistical Dense SIFT Descriptor for Spoofing Detection in Fingerprint Authentication Systems
(Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2021) [Trabalho apresentado em evento]Fingerprintbased authentication systems represent what is most common in biometric authentication systems. Today’s simplest tasks, such as unlocking functions on a personal cell phone, may require its owner’s fingerprint. ... 
Sdre control applied to an electromechanical pendulum excited by a nonideal motor
(Proceedings of the ASME Design Engineering Technical Conference, 2013) [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 ... 
New properties of the switching points for the generalized Hukuhara differentiability and some results on calculus ?
(Fuzzy Sets And Systems, 2021) [Artigo]This article provides a new characterization of the switching points for generalized Hukuhara differentiability and shows that the set of all switching points is at most countable. Using these results, new properties in ... 
A discrete weighted MarkovBernstein inequality for sequences and polynomials
(Journal Of Mathematical Analysis And Applications, 2021) [Artigo]For parameters c is an element of(0,1) and beta > 0, let l(2)(c ,beta) be the Hilbert space of real functions defined on N (i.e., real sequences), for which parallel to f parallel to(2)(c,beta) := Sigma(infinity)(k=0)(beta)(k)/k! ... 
A weak maximum principle for optimal control problems with mixed constraints under a constant rank condition
(IMA Journal of Mathematical Control and Information, 2020) [Artigo]Necessary optimality conditions for optimal control problems with mixed statecontrol equality constraints are obtained. The necessary conditions are given in the form of a weak maximum principle and are obtained under (i) ... 
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 ...