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UBA - CienciaS Foro de Alumnos 2013-06-29T16:37:58-03:00 http://ubacs.com.ar/ubacs/feed.php?f=68&t=2923 2013-06-29T16:37:58-03:00 2013-06-29T16:37:58-03:00 http://ubacs.com.ar/ubacs/viewtopic.php?t=2923&p=15574#p15574 <![CDATA[[No resuelto] Final 25/06/2013]]> Sean -espacios vectoriales (no necesariamente de dimensión finita). Se define el producto cartesiano de por :



Este espacio resulta ser un -espacio vectorial con las operaciones:

y (No hace falta probarlo).

Exhibir una base de en función de una base de y de una base de (Demostrar).
¿Cuál es la dimensión de si y tienen dimensión finita?

Ejercicio 2.
a) Sea una base ortogonal de y sea la matriz de cuyas columnas son los vectores (columna)
Probar que (Sugerencia: Calcular ).

b) Sea una base de y sea la base que se obtiene aplicando el proceso de ortogonalización de Gram-Schmidt a
Probar que se tiene , y que

c) Desigualdad de Hadamard:
Probar que para todo donde son vectores columna cualesquiera, se tiene

Ejercicio 3.
Sea la matriz que tiene todos sus coeficientes iguales a 1.

a) Probar que es diagonalizable, y determinar diagonal y inversible tal que

b) Sea Probar que es diagonalizable, y determinar diagonal y inversible tal que

Ejercicio 4.
Sea Probar que

Estadísticas: Publicado por elnieto — 29 Jun 2013, 16:37


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