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Carlos Ivorra Castillo AN´ALISIS MATEM´ATICO - Tecnologia-Tecnica

Carlos Ivorra Castillo AN´ALISIS MATEM´ATICO - Tecnologia-Tecnica

Carlos Ivorra Castillo AN´ALISIS MATEM´ATICO - Tecnologia-Tecnica

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8.4. Derivación de medidas 309<br />

Veamos que µ = T . Sif∞ ≤ 1 tenemos<br />

<br />

<br />

|T (f)| = <br />

<br />

<br />

<br />

fdµ <br />

≤<br />

<br />

|f| d|µ| ≤|µ|(K) =µ,<br />

K<br />

K<br />

luego T ≤µ. Dado ɛ>0 consideramos una partición de Hann (A, B)<br />

para µ. Sean K1 y K2 conjuntos compactos tales que K1 ⊂ A, K2 ⊂ B,<br />

µ + (A)−µ + (K1)+µ − (B)−µ − (K2)

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