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UBA - CienciaS • Ver Tema - [NO RESUELTO] 2º parcial, 14 de diciembre de 2009
UBACS Q&A Foro WikiCS
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 Asunto: [NO RESUELTO] 2º parcial, 14 de diciembre de 2009
NotaPublicado: 21 Dic 2009, 21:32 
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Registrado: 28 Abr 2009, 23:55
Mensajes: 27
EJERCICIO 1:
Sea un espacio métrico y sean cerrado y compacto disjuntos. Probar que existe un tal que y son disjuntas.

EJERCICIO 2:
Sea un espacio métrico compacto y sea una función continua tal que para todos x e y en con x y. Probar que tiene un único punto fijo. SEGERENCIA: considerar la función definida por

EJERCICIO 3:
Sea En consideramos la siguiente norma, = . Probar que es un epacio de Banach.

EJERCICIO 4:
Sea . Probar que es conexo y que también lo es. Hallar las componentes arcoconexas de ambos conjuntos.

EJERCICIO 5:
Sea un conjunto convexo y acotado tal que . Para cada definimos , donde
(a) Probar que
(b) Probar que si t y t` son números reales positivos distintos.
(c) Probar que existe un número real t tal que


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 Asunto: Re: [NO RESUELTO] 2º parcial, 14 de diciembre de 2009
NotaPublicado: 29 Jun 2011, 12:37 
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Registrado: 07 Oct 2009, 15:23
Mensajes: 32
(1)


(2)(supongo que debe ser con ,pues por ejemplo , verifica las hipótesis pero no tiene un único punto fijo)


(3)


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