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1
artículo
Publicado 2016
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In this work we will analyze the stability of linear systems governed by a Markov chain, this family is known in the specialized literature as linear systems with Markov jumps or by its acronyms in English MJLS as it is denoted in [1]. Linear systems governed by a Markov chain are dynamic systems with abrupt changes. We give some denitions of stability for the MJLS system, where these types of stability are equivalent as long as the state space of the Markov chain is finite.Finally we present a theorem that characterizes the stochastic stability by means of an equation of the Lyapunov type. The result is a generalization of a theorem in classical theory.
2
artículo
Publicado 2016
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In this work we will analyze the stability of linear systems governed by a Markov chain, this family is known in the specialized literature as linear systems with Markov jumps or by its acronyms in English MJLS as it is denoted in [1]. Linear systems governed by a Markov chain are dynamic systems with abrupt changes. We give some denitions of stability for the MJLS system, where these types of stability are equivalent as long as the state space of the Markov chain is finite.Finally we present a theorem that characterizes the stochastic stability by means of an equation of the Lyapunov type. The result is a generalization of a theorem in classical theory.
3
tesis de maestría
Desarrolla un programa de computadora en Quick Basic que permita el cálculo y optimización del corte y relleno de material en proyectos lineales como carreteras, canales, vías férreas, etc. El programa provee una plataforma amigable de fácil uso que permite calcular y optimizar rápidamente el material de excavación, relleno, así como el material de préstamo de canteras y eliminación de material excedente en botaderos designados.
4
artículo
Publicado 2021
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The generalized QR factorization, also known as GQR factorization, is a method that simultaneously transforms two matrices A and B in a triangular form. In this paper, we show the application of GQR factorization in solving linear equality-constrained least square problems; in addition, we explain how to use GQR factorization for solving quaternion least-square problems through the matrix representation of quaternions.
5
artículo
Publicado 2010
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En este trabajo estamos interesados con la existencia de soluciones fuertes y decaimiento exponencial de la energía total para el problema de valores iniciales en la frontera asociado a la ecuación de onda con término fuente no lineal y amortiguación en la frontera. Los resultados son probados en términos del método potencial, la técnica de multiplicación y el conveniente teorema de única continuación para la ecuación de onda con coeficientes variables.
6
artículo
Publicado 2022
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In this paper we are going to develop an unpublished argument of William Thurston that shows the existence of hyperbolic groups with no non-trivial representations to linear groups over any ring, for a given dimension. His approach studies the space of representations of any non-elementary hyperbolic group G to conclude that there is a hyperbolic quotient with such property.
7
tesis doctoral
Publicado 2018
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En esta tesis, los principales objetivos son establecer: i) La controlabilidad local exacta por trayectorias para EDPs parabólicas como no linealidad no local, en un dominio limitado y con el control distribuido. También vamos a probar la controlabilidad local exacta por trayectorias para EDPs parabólicas con no linealidad no local y con el control en la frontera en dimensión 1 respecto a la variable espacial. ii) La controlabilidad local nula del sistema N—dimensional de Ladyzhenskaya-Smagorinsky con N — 1 controles escalares en un dominio arbitrario del control. iii) La controlabilidad local nula del “verdadero“ sistema N—dimensional de Boussinesq. iv) Un resultado de controlabilidad global nula aproximada del verdadero“ sistema de Boussinesq en dimensión 3. v) El control jerárquico siguiendo la estrategia de Stackelberg-Nash para una EDP parabólica no lineal, en un ...
8
artículo
The concept of eigenvalues is associated with the linearity one, through the structure of vectorial space. The multiplicative linear algebra is a structure in which an expression such as x^3y^2 can be considered a linear combination of variables x and y. This article is reserved to show the corresponding analogues for an Eigenvalue Theory. We exemplify its applications by introducing a connection with the analysis of a nonlinear dynamical system in the standard sense, although a linear recurrence in the multiplicative one.
9
artículo
In this paper we consider the nonlinear transmission problem for the wave equation with time dependent coefficients and linear internal damping. We prove global existence and exponential decay of solution. The result is achieved by considering energy like - Lyapunov functionals and suitable unique continuation theorem for the wave equation.
10
artículo
In this paper we consider the nonlinear transmission problem for the wave equation with time dependent coefficients and linear internal damping. We prove global existence and exponential decay of solution. The result is achieved by considering energy like - Lyapunov functionals and suitable unique continuation theorem for the wave equation.
11
artículo
Currently, streaming music services have become one of the main means of music consumption around the world. Spotify offers music streaming services and covers more than thirty million songs. Every year there is an increase in the production of songs so it is more difficult for a song to establish itself as a hit in the market. The objective of this work was to apply the Linear Regression modeling technique to find a trend of the data set on the popularity index of songs on the Spotify platform, in this way predict a result with new data that enters. A quantitative methodology was applied based on measurable data that were taken as datasets. As a result, a mean square error of 94.79 and a variance of 0.20 were obtained. The conclusion of the work is that the dataset used was not the ideal according to our objective.
12
tesis doctoral
Publicado 2018
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Descargue el texto completo en el repositorio institucional de la Universidad Federal Fluminense: https://app.uff.br/riuff/handle/1/12750
13
artículo
Publicado 2016
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This article deals with the asymptotic behavior of nonoscillatory solutions of fourth order linear differential equation where the coefficients are perturbations of linear constant coefficient equation. We define a change of variable and deduce that the new variable satisfies a third order nonlinear differential equation. We assume three hypotheses. The first hypothesis is related to the constant coefficients and set up that the characteristic polynomial associated with the fourth order linear equation has simple and real roots. The other two hypotheses are related to the behavior of theperturbation functions and establish asymptotic integral smallness conditions of the perturbations. Under these general hypotheses, we obtain four main results. The first two results are related to the application of a fixed point argument to prove that the nonlinear third order equation has a unique solu...
14
artículo
Publicado 2016
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This article deals with the asymptotic behavior of nonoscillatory solutions of fourth order linear differential equation where the coefficients are perturbations of linear constant coefficient equation. We define a change of variable and deduce that the new variable satisfies a third order nonlinear differential equation. We assume three hypotheses. The first hypothesis is related to the constant coefficients and set up that the characteristic polynomial associated with the fourth order linear equation has simple and real roots. The other two hypotheses are related to the behavior of theperturbation functions and establish asymptotic integral smallness conditions of the perturbations. Under these general hypotheses, we obtain four main results. The first two results are related to the application of a fixed point argument to prove that the nonlinear third order equation has a unique solu...
15
artículo
Publicado 2019
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The objective of this research study was to determine the relationship between the motivation of achievement and the resolution of problems with linear functions of the students of Foundations of Calculus for the afternoon course of the Faculty of Business at the Peruvian University of Applied Sciences, 2017. This study was developed within a quantitative approach, with a hypothetical deductive method and non-experimental design. The sample consisted of 76 students of Foundations of Calculus from the Faculty of Business of the aforementioned university. The results show that there is no direct and significant relationship between the motivation of achievement and the resolution of problems with linear functions of the students surveyed. This further showed that the competency to solve problems does not depend on motivation, but rather requires knowledge and skills that are put into pract...
16
artículo
Publicado 2019
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The objective of this research study was to determine the relationship between the motivation of achievement and the resolution of problems with linear functions of the students of Foundations of Calculus for the afternoon course of the Faculty of Business at the Peruvian University of Applied Sciences, 2017. This study was developed within a quantitative approach, with a hypothetical deductive method and non-experimental design. The sample consisted of 76 students of Foundations of Calculus from the Faculty of Business of the aforementioned university. The results show that there is no direct and significant relationship between the motivation of achievement and the resolution of problems with linear functions of the students surveyed. This further showed that the competency to solve problems does not depend on motivation, but rather requires knowledge and skills that are put into pract...
17
artículo
Publicado 2019
Enlace
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The objective of this research study was to determine the relationship between the motivation of achievement and the resolution of problems with linear functions of the students of Foundations of Calculus for the afternoon course of the Faculty of Business at the Peruvian University of Applied Sciences, 2017. This study was developed within a quantitative approach, with a hypothetical deductive method and non-experimental design. The sample consisted of 76 students of Foundations of Calculus from the Faculty of Business of the aforementioned university. The results show that there is no direct and significant relationship between the motivation of achievement and the resolution of problems with linear functions of the students surveyed. This further showed that the competency to solve problems does not depend on motivation, but rather requires knowledge and skills that are put into pract...
18
artículo
Publicado 2005
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The article deals in the application of the Mixed Integer Linear Programming (MILP) as a tool for the import planning in the context of a company dealing in the manufacturing and sale of steel components. A mathematical model is built to be adapted for the characteristics of the company import processes and whose objective is to decide which import plan having definitive customs regimen has the minimum total costs. The mathematical pattern is formulated in this first part.
19
artículo
Publicado 2005
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The article deals in the application of the Mixed Integer Linear Programming (MILP) as a tool for the import planning in the context of a company dealing in the manufacturing and sale of steel components. A mathematical model is built to be adapted for the characteristics of the company import processes and whose objective is to decide which import plan having definitive customs regimen has the minimum total costs. The mathematical pattern is formulated in this first part.
20
artículo
The present work deals with the study of the almost sure stability of discrete-time Markov jump linear systems (MJLS). First, the stability of linear systems in discrete time (MJLS with a single mode) is introduced by the Lyapunov exponent. Then the extension of this theory to the general case is approached: a variant of Birkhoff’sergodic theorem is used to revise the equality (4.6) for the Lyapunov exponent described in [6], from this we obtain the characterization of the almost sure stability of the MJLS.
