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

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

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360 A Simetrías y leyes de conservación<br />

De (A.15), (A.16), (A.18), (A.24) y (A.25) obtenemos<br />

0 = − ∂H<br />

∂q i<br />

+<br />

=<br />

+<br />

+<br />

=<br />

+<br />

−<br />

−<br />

+<br />

+<br />

=<br />

+<br />

+<br />

−<br />

∂H<br />

∂p B j<br />

∂ 2 L<br />

<br />

<br />

F L(φ (1) (t))<br />

<br />

<br />

F L(Φ(φ (1) (t)))<br />

<br />

<br />

∂qj ∂vi <br />

A φ (1) (t)<br />

∂H<br />

∂qj <br />

<br />

− ∂H<br />

<br />

<br />

∂ 2 L<br />

∂ 2 L<br />

<br />

<br />

+ ∂H<br />

∂qj <br />

<br />

∂Φj ∂qi <br />

<br />

<br />

∂pB <br />

j F L(φ (1) (t)) ∂qi∂v j <br />

φ (1) (t) F L(Φ(φ (1) (t)))<br />

B<br />

∂qk∂v j<br />

<br />

∂Φ<br />

<br />

Φ(t)<br />

B<br />

k<br />

∂qi <br />

<br />

+<br />

φ (1) (t)<br />

∂2L ∂vk A∂vj <br />

∂Φ<br />

<br />

Φ(t)<br />

B<br />

k A<br />

∂qi <br />

<br />

<br />

φ (1) (t)<br />

<br />

<br />

+<br />

t<br />

∂2L ∂v j<br />

B∂vi <br />

∂<br />

<br />

φ (1) (t)<br />

A<br />

2φj ∂tA∂tB <br />

<br />

−<br />

t<br />

∂φj<br />

∂tA <br />

∂<br />

<br />

t<br />

2L ∂qi∂v j<br />

<br />

<br />

<br />

φ (1) (t)<br />

B<br />

∂φj ∂tA ∂Φj ∂qi <br />

<br />

2 ∂ L<br />

<br />

F L(Φ(φ (1) (t))) φ (1) (t)<br />

∂H<br />

∂pB <br />

<br />

<br />

j F L(Φ(φ (1) (t))) ∂qk∂v j<br />

<br />

∂Φ<br />

<br />

Φ(t)<br />

B<br />

k<br />

∂qi <br />

<br />

+<br />

φ (1) (t)<br />

∂2L ∂vk A∂vj <br />

∂Φ<br />

<br />

Φ(t)<br />

B<br />

k A<br />

∂qi <br />

<br />

<br />

φ (1) (t)<br />

2 ∂ L<br />

∂qk∂v l <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k<br />

∂qj <br />

<br />

+<br />

φ (1) (t)<br />

∂2L ∂vk C∂vl <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k C<br />

∂qj l<br />

∂Φ<br />

<br />

φ (1) (t) ∂qi <br />

∂φ<br />

<br />

φ (1) (t)<br />

j<br />

∂tA <br />

<br />

<br />

t<br />

2 ∂ L<br />

∂qk∂v l <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k<br />

∂v j<br />

<br />

<br />

+<br />

φ (1) (t)<br />

B<br />

∂2L ∂vk C∂vl <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k C<br />

∂v j<br />

l<br />

∂Φ<br />

<br />

φ (1) (t) ∂q B<br />

i<br />

<br />

∂<br />

<br />

φ (1) (t)<br />

2φj ∂tA∂tB <br />

<br />

<br />

t<br />

2 ∂ L<br />

∂qk∂v l <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k<br />

∂qi <br />

<br />

+<br />

φ (1) (t)<br />

∂2L ∂vk C∂vl <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k C<br />

∂qi l<br />

∂Φ<br />

<br />

φ (1) (t) ∂v j<br />

<br />

∂<br />

<br />

φ (1) (t)<br />

B<br />

2φj ∂tA∂tB <br />

<br />

<br />

t<br />

∂φj ∂tA 2<br />

∂ L<br />

<br />

t ∂qk∂v l <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k<br />

∂qi <br />

<br />

+<br />

φ (1) (t)<br />

∂2L ∂vk C∂vl <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k C<br />

∂qi l<br />

∂Φ<br />

<br />

φ (1) (t) ∂qj <br />

<br />

<br />

φ (1) (t)<br />

∂H<br />

∂qj <br />

<br />

∂Φj ∂qi <br />

<br />

2 ∂ L<br />

+<br />

<br />

F L(Φ(φ (1) (t))) φ (1) (t)<br />

∂H<br />

∂pB <br />

<br />

<br />

j F L(Φ(φ (1) (t))) ∂qk∂v j<br />

<br />

∂Φ<br />

<br />

Φ(t)<br />

B<br />

k<br />

∂qi <br />

<br />

+<br />

φ (1) (t)<br />

∂2L ∂vk A∂vj <br />

∂Φ<br />

<br />

Φ(t)<br />

B<br />

k A<br />

∂qi <br />

<br />

<br />

φ (1) (t)<br />

2 ∂ L<br />

∂qk∂v l <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k<br />

∂qj <br />

<br />

+<br />

φ (1) (t)<br />

∂2L ∂vk C∂vl <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k C<br />

∂qj l<br />

∂Φ<br />

<br />

φ (1) (t) ∂qi <br />

∂φ<br />

<br />

φ (1) (t)<br />

j<br />

∂tA <br />

<br />

<br />

t<br />

2 ∂ L<br />

∂qk∂v l <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k<br />

∂v j<br />

<br />

<br />

+<br />

φ (1) (t)<br />

B<br />

∂2L ∂vk C∂vl <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k C<br />

∂v j<br />

l<br />

∂Φ<br />

<br />

φ (1) (t) ∂q B<br />

i<br />

<br />

∂<br />

<br />

φ (1) (t)<br />

2φj ∂tA∂tB <br />

<br />

<br />

t<br />

2 ∂ L<br />

∂qk∂v l <br />

<br />

+<br />

A<br />

Φ(t) φ (1) (t)<br />

∂2L ∂vk C∂vl <br />

∂Φ<br />

<br />

A<br />

Φ(t)<br />

k C<br />

∂qi <br />

<br />

(<br />

φ (1) (t)<br />

∂H<br />

∂pA <br />

<br />

<br />

l<br />

F L(Φ(φ (1) (t)))<br />

∂Φ l<br />

∂q j<br />

<br />

<br />

φ (1) (t)<br />

∂Φk ∂qi <br />

<br />

∂φj ∂tA <br />

<br />

−<br />

t<br />

∂Φl<br />

∂v j<br />

<br />

<br />

B<br />

<br />

)<br />

∂<br />

<br />

φ (1) (t)<br />

2φj ∂tA∂tB <br />

<br />

t<br />

φ (1) (t)

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