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

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

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1.1.3 Formalismo hamiltoniano. Ecuaciones de Hamilton-De Donder-Weyl. 17<br />

Se verifica:<br />

=<br />

d<br />

<br />

<br />

ds<br />

d<br />

<br />

<br />

ds<br />

s=0<br />

s=0<br />

H((T 1 k ) ∗ τs ◦ ψ)<br />

<br />

R k<br />

k <br />

A=1<br />

=<br />

1<br />

<br />

lím<br />

s→0 s<br />

<br />

Rk k<br />

A=1<br />

−<br />

k<br />

R k<br />

A=1<br />

([(T 1 k ) ∗ τs ◦ ψ] ∗ θ A ) ∧ d k−1 t A − ([(T 1 k ) ∗ τs ◦ ψ] ∗ H)d k t<br />

([(T 1 k ) ∗ τs ◦ ψ] ∗ θ A ) ∧ d k−1 t A − ([(T 1 k ) ∗ τs ◦ ψ] ∗ H)d k t<br />

([(T 1 k ) ∗ τ0 ◦ ψ] ∗ θ A ) ∧ d k−1 t A − ([(T 1 k ) ∗ τ0 ◦ ψ] ∗ H)d k t<br />

1<br />

= lím<br />

s→0 s Rk k<br />

([(T<br />

A=1<br />

1 k ) ∗ τs ◦ ψ] ∗ θ A ) ∧ d k−1 t A <br />

−<br />

Rk k<br />

(ψ<br />

A=1<br />

∗ θ A ) ∧ d k−1 t A<br />

<br />

<br />

1<br />

− lím<br />

s→0 s Rk ([(T 1 k ) ∗ τs ◦ ψ] ∗ H)d k <br />

t −<br />

Rk (ψ ∗ H)d k <br />

t<br />

1<br />

= lím<br />

s→0 s Rk k<br />

[ψ<br />

A=1<br />

∗<br />

<br />

((T 1 k ) ∗ τs) ∗ θ A − θ A<br />

<br />

] ∧ d k−1 t A<br />

<br />

<br />

1<br />

− lím<br />

s→0 s Rk [ψ ∗<br />

<br />

((T 1 k ) ∗ τs) ∗ <br />

H − H ]d k <br />

t<br />

<br />

∗<br />

= [ψ (LZC∗θ A )] ∧ d k−1 t A − [ψ ∗ (LZC∗H)]d k t ,<br />

R k<br />

con lo que el resultado buscado se sigue inmediatamente.<br />

(2 ⇔ 3)<br />

Teniendo en cuenta que<br />

se obtiene<br />

<br />

R k<br />

[ψ ∗ (LZC∗θ A )] ∧ d k−1 t A <br />

=<br />

L Z C∗θ A = dı Z C∗θ A + ı Z C∗dθ A<br />

R k<br />

<br />

[ψ ∗ (dıZC∗θ A )] ∧ d k−1 t A <br />

+<br />

Rk [ψ ∗ (ıZC∗dθ A )] ∧ d k−1 t A .

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