RSS 1.0Departamento de Matemática Aplicada
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RTS: Expert advisor for reaction trend system[Formula presented]
; Silva, Geraldo Nunes
; (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
; Assunção, Edvaldo; Silva, Geraldo Nunes ; ; (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 real-world applications, contain uncertainties. ... -
Reaction trend system with GARCH quantiles as action points[Formula presented]
; Silva, Geraldo Nunes; (Expert Systems with Applications, 2022) [Artigo]
Most trading systems developed from technical indicators are designed to operate in either trending or non-trending markets but they are rarely useful for both markets. A reaction trend system allows operations in both ... -
A New Multi-filter Framework with Statistical Dense SIFT Descriptor for Spoofing Detection in Fingerprint Authentication Systems
; ; Boaventura, Maurílio; Boaventura, Inês Aparecida Gasparotto ; ; (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2021) [Trabalho apresentado em evento]
Fingerprint-based 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 non-ideal motor
Bueno, Atila Madureira; ; ; Tsuchida, Masayoshi ; Balthazar, José Manuel (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 ?
; Costa, T. M.; ; (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 Markov-Bernstein inequality for sequences and polynomials
Dimitrov, Dimitar K.; (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
; de Oliveira, Valeriano Antunes; ; Silva, Geraldo Nunes (IMA Journal of Mathematical Control and Information, 2020) [Artigo]
Necessary optimality conditions for optimal control problems with mixed state-control 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
; Pena, Ismael; Silva, Geraldo Nunes (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 Continuous-Time Nonlinear Programming
; de Oliveira, Valeriano Antunes (Set-Valued and Variational Analysis, 2020) [Artigo]
The paper addresses continuous-time 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
; Silva Ribeiro, L. L.; Sri Ranga, A. ; (Results in Mathematics, 2020) [Artigo]
In a recent paper (Martínez-Finkelshtein 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
; Pena, Ismael; Silva, Geraldo Nunes ; (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
Barbanti, Luciano; Damasceno, Berenice Camargo ; Silva, Geraldo Nunes ; ; ; ; (Differential And Difference Equations With Applicati Ons, 2013) [Trabalho apresentado em evento]
We present here the linear Cauchy-Stieltjes 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
Oliveira, Valeriano A. de; Silva, Geraldo N. ; ; (2012 Ieee 51st Annual Conference On Decision And Control (cdc), 2012) [Trabalho apresentado em evento]
In this article we introduce the concept of MP-pseudoinvexity 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
; Silva, Geraldo Nunes da; (2011 50th Ieee Conference On Decision And Control And European Control Conference (cdc-ecc), 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
Dimitrov, Dimitar K.; (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
Dimitrov, Dimitar K.; (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
Campos, José Renato; Assunção, Edvaldo ; Silva, Geraldo Nunes ; ; Teixeira, Marcelo Carvalho Minhoto ; Maqui-Huamán, Gino Gustavo (Fuzzy Sets and Systems, 2019) [Artigo]
This paper proposes the discrete-time fuzzy interval optimal control problem via single-level constrained fuzzy arithmetic. Fuzzy interval functions are established and allow us to evaluate the dynamics of the fuzzy interval ... -
Necessary conditions for continuous-time optimization under the Mangasarian–Fromovitz constraint qualification
do Monte, Moisés Rodrigues Cirilo; de Oliveira, Valeriano Antunes (Optimization, 2019) [Artigo]
In this paper, a Mangasarian–Fromovitz-type regularity condition is presented with the purpose of obtaining first order necessary optimality conditions for continuous-time nonlinear programming problems with both equality ... -
Complementary romanovski-routh polynomials: From orthogonal polynomials on the unit circle to coulomb wave functions
; Silva Ribeiro, L. L.; Sri Ranga, A. ; (Proceedings of the American Mathematical Society, 2019) [Artigo]
We consider properties and applications of a sequence of polynomials Known as complementary RomanovsKi-Routh polynomials (CRR polynomials for short). These polynomials, which follow from the RomanovsKi-Routh polynomials ...