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Silvia Vilari˜no Fernández NUEVAS APORTACIONES AL ESTUDIO ...

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de (A.4), (A.5), (A.8) y (A.9) obtenemos<br />

δ A D<br />

∂Φ s<br />

∂p C k<br />

<br />

<br />

Φ −1 (w)<br />

de (A.3), (A.5), (A.6) y (A.8) se sigue que<br />

∂Φ A s<br />

∂q j<br />

= − δ A C<br />

<br />

∂(Φ−1 ) k<br />

∂pD <br />

<br />

s w<br />

<br />

<br />

= −<br />

Φ−1 (w)<br />

∂(Φ−1 ) A j<br />

∂qs y de (A.3), (A.5), (A.7) y (A.9) deducimos<br />

∂Φ s<br />

∂q j<br />

<br />

<br />

= δ<br />

Φ−1 (w)<br />

A B<br />

∂(Φ −1 ) A j<br />

∂p B s<br />

355<br />

, (A.11)<br />

<br />

<br />

, (A.12)<br />

w<br />

<br />

<br />

. (A.13)<br />

w<br />

Para finalizar vamos a comprobar que las identidades (a) y (b) se verifican:<br />

k<br />

A=1<br />

∂(Φ ◦ ψ) A i<br />

∂t A<br />

<br />

<br />

=<br />

t<br />

∂ΦAi ∂qj <br />

<br />

ψ(t)<br />

∂ψj ∂tA <br />

<br />

t<br />

+ ∂ΦA i<br />

∂p B j<br />

<br />

∂ψ<br />

<br />

ψ(t)<br />

B j<br />

∂tA k<br />

+ δ<br />

A=1<br />

A ∂(Φ<br />

B<br />

−1 ) j<br />

∂qi <br />

∂ψ<br />

<br />

ψ(t)<br />

B j<br />

∂tA <br />

<br />

=<br />

t<br />

∂ΦAi ∂qj <br />

∂H<br />

<br />

ψ(t) ∂pA <br />

<br />

<br />

j ψ(t)<br />

= ∂ΦAi ∂qj <br />

∂H<br />

<br />

ψ(t) ∂qk <br />

∂Φ<br />

<br />

(Φ◦ψ)(t)<br />

k<br />

∂pA <br />

<br />

+<br />

j ψ(t)<br />

∂H<br />

∂pB <br />

∂Φ<br />

<br />

k<br />

(Φ◦ψ)(t)<br />

B k<br />

∂pA j<br />

− ∂(Φ−1 ) j<br />

∂qi <br />

∂H<br />

<br />

(Φ◦ψ)(t) ∂qk <br />

∂Φ<br />

<br />

(Φ◦ψ)(t)<br />

k<br />

∂qj <br />

<br />

+<br />

ψ(t)<br />

∂H<br />

∂pB k<br />

= ∂H<br />

∂qk A<br />

∂Φi <br />

(Φ◦ψ)(t) ∂qj <br />

∂Φ<br />

<br />

ψ(t)<br />

k<br />

∂pA <br />

<br />

−<br />

j ψ(t)<br />

∂(Φ−1 ) j<br />

∂qi <br />

<br />

<br />

(Φ◦ψ)(t)<br />

+ ∂H<br />

∂pB A<br />

∂Φi <br />

k<br />

(Φ◦ψ)(t) ∂qj <br />

∂Φ<br />

<br />

ψ(t)<br />

B k<br />

∂pA <br />

<br />

−<br />

j ψ(t)<br />

∂(Φ−1 ) j<br />

∂qi <br />

<br />

= ∂H<br />

∂qk A<br />

∂Φi <br />

(Φ◦ψ)(t) ∂qj <br />

∂Φ<br />

<br />

ψ(t)<br />

k<br />

∂pA <br />

<br />

− δ<br />

j ψ(t)<br />

k i + ∂Φk<br />

∂pB <br />

<br />

<br />

l<br />

ψ(t)<br />

+ ∂H<br />

∂p B k<br />

= ∂H<br />

∂qk <br />

<br />

<br />

<br />

(Φ◦ψ)(t)<br />

(Φ◦ψ)(t)<br />

<br />

∂Φ A i<br />

∂q j<br />

∂Φ A i<br />

∂q j<br />

<br />

∂Φ<br />

<br />

ψ(t)<br />

B k<br />

∂pA j<br />

<br />

<br />

∂Φk <br />

<br />

<br />

ψ(t) ∂pA <br />

j ψ(t)<br />

<br />

<br />

+<br />

ψ(t)<br />

∂ΦBk ∂pC j<br />

− δ k i − ∂Φk<br />

∂p B l<br />

<br />

<br />

=<br />

t<br />

∂ΦAi ∂qj − ∂(Φ−1 ) j<br />

∂q i<br />

<br />

<br />

ψ(t)<br />

<br />

<br />

<br />

<br />

∂Φ<br />

<br />

(Φ◦ψ)(t)<br />

B k<br />

∂qj (Φ◦ψ)(t)<br />

∂Φ k<br />

∂q j<br />

<br />

<br />

∂Φ B k<br />

∂q j<br />

∂(Φ −1 ) B l<br />

∂q i<br />

<br />

∂(Φ<br />

<br />

ψ(t)<br />

−1 ) C j<br />

∂qi <br />

<br />

ψ(t)<br />

∂Φ B i<br />

∂q l<br />

ψ(t)<br />

<br />

<br />

ψ(t)<br />

(Φ◦ψ)(t)<br />

<br />

<br />

<br />

ψ(t)<br />

<br />

<br />

<br />

<br />

ψ(t)<br />

<br />

<br />

<br />

(Φ◦ψ)(t)<br />

<br />

<br />

(Φ◦ψ)(t)<br />

<br />

<br />

<br />

ψ(t)<br />

<br />

∂ψj ∂tA <br />

<br />

t<br />

∂H<br />

∂qj <br />

<br />

ψ(t)

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