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Esercizi svolti di analisi reale e complessa - Dipartimento di ...

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Φ +<br />

F (∂E3) <br />

Ψ 3 u ∧ Ψ 3 v<br />

Ψ 3 u ∧ Ψ 3 v<br />

1<br />

= (−u cos v, −u sin v, u) =<br />

u<br />

= (− cos v, − sin v, 1) .<br />

<br />

<br />

ˆn3 = (− cos v, − sin v, 1) .<br />

<br />

∂E3 <br />

F (x, y, z) · ˆn3 = (u cos v, u sin v, u) · (− cos v, − sin v, 1) =<br />

= −u cos 2 v − u sin 2 v + u =<br />

= −u + u =<br />

= 0 .<br />

<br />

<br />

<br />

<br />

<br />

F (x, y, z)<br />

F <br />

∂E3 <br />

Φ +<br />

F (∂E3) =<br />

= 0 .<br />

<br />

=<br />

<br />

<br />

∂E3<br />

∂E2<br />

F · ˆn3 dσ =<br />

0 dσ =<br />

Φ +<br />

F (∂E) = Φ+<br />

F (∂E1 ∪ ∂E2 ∪ ∂E3) =<br />

= Φ +<br />

F (∂E1) + Φ +<br />

F (∂E2) + Φ +<br />

F (∂E3)<br />

=<br />

=<br />

0 + √ 2 π + 0 =<br />

= √ 2 π .<br />

E

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