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A new preconditions for solving linear systems with symmetric Z-matrices 

Cajigas-Santiago, Jesús (2012-05)
There are many preconditioners for linear systems, for example, P = I + Smax developed by Kotakemori in [9] and its extension P˜ developed by Arenas & Yong in [1]. These preconditioners were built to speed up the convergence ...
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Aspectos computacionales del método Local Discontinuos Galerkin para mallas no estructuradas en 3D 

Sequeira-Chabarría, Filánder de los A. (2010-11)
Muchos de los problemas físicos y de ingeniería son modelados a través de ecuaciones diferenciales e integrales, los cuales, en la mayoría de los casos, no tienen una solución analítica. Por esta razón, se recurre a aproximar ...
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Marco computacional para el tratamiento armónico de representaciones bidimensionales 

Soto-Quirós, Juan P. (2011-08)
A través de los años, el análisis armónico aplicado y numérico ha sido relevante en el área de ingeniería eléctrica, para el estudio y el comportamiento de señales bidimensionales en tiempo y frecuencia, específicamente ...
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A new preconditioner for solving linear systems with ill-conditioned Z-matrices 

Arenas-Navarro, Isnardo (2011-06)
The class of Z-matrices is the set of matrices whose off-diagonal entries are non positive. Solving a linear system of the form Ax = b is possible if the coefficient matrix A has certain characteristics such as being of ...
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Paralelización de la operación correlación cruzada aplicado a marcas de agua en imágenes digitales 

Bolaños Revelo, Cesar Fernando (2019-12-09)
El uso de marcas de agua permite proteger elementos multimedia frente a manipulaciones ilegales que infrinjan derechos de autor. Marcas de agua construidas a partir de matrices con buenos valores de correlación y autocorrelación ...
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Técnica de componentes indepedientes: aplicación y análisis de datos de series temporales sobre Puerto Rico 

Ochoa-Tapia, Ysela (2014-06)
The time series analysis is oriented to the problem of prediction. Perform a univariate analysis is simpler than a multivariate analysis because the univariate analysis is concerned only with the structure of internal ...

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AuthorArenas-Navarro, Isnardo (1)Bolaños Revelo, Cesar Fernando (1)Cajigas-Santiago, Jesús (1)Ochoa-Tapia, Ysela (1)Sequeira-Chabarría, Filánder de los A. (1)Soto-Quirós, Juan P. (1)AdvisorYong, Xuerong (2)Bollman, Dorothy (1)Lorenzo-González, Edgardo (1)Rodríguez, Domingo (1)Steinberg, Lev (1)KeywordsLinear systems (2)correlación cruzada (1)Digital signal (1)Equation (1)Finite different methods (1)Fourier transform (1)Functions (1)Integral equation (1)Local Discontinuous Galerkin (1)marcas de agua (1)... View MoreSubject Heading
Matrices (6)
Numerical analysis (4)Iterative methods (Mathematics) (2)Linear systems (2)Algorithms (1)AMUSE (1)Computable functions -- Data processing (1)Differenctial-algebraic equations -- Numerical solutions (1)Differential equations, Elliptic -- Numerical solutions (1)Differential equations, Partial (1)... View MoreTypeThesis (6)Date2011 (2)2010 (1)2012 (1)2014 (1)2019 (1)Department
Department of Mathematics (6)
ProgramApplied Mathematics (4)Computer Science (1)Mathematical Statistics (1)CollectionTheses & Dissertations (6)

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