By Gennadi Sardanashvily
ISBN-10: 946239170X
ISBN-13: 9789462391703
ISBN-10: 9462391718
ISBN-13: 9789462391710
The ebook presents an in depth exposition of the calculus of diversifications on fibre bundles and graded manifolds. It offers functions in such area's as non-relativistic mechanics, gauge concept, gravitation thought and topological box thought with emphasis on strength and energy-momentum conservation legislation. inside of this common context the 1st and moment Noether theorems are taken care of within the very normal environment of reducible degenerate graded Lagrangian theory.
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Additional resources for Noether's Theorems: Applications in Mechanics and Field Theory
Sample text
Since r (X ) ⊂ N L , then r = L ◦ s, J 1r = J 1 L ◦ J 1 s. If r is a classical solution of the covariant Hamilton equation, an exterior form E H vanishes at points of J 1r (X ). Hence, the pull-back form E L = (J 1 L)∗ E H vanishes at points J 1 s(X ). 19). 63), we have s = J 1 s. Hence, s is a classical solution of the Euler–Lagrange equation. The converse assertion is more intricate [53]. 19). Let H be a 44 3 Lagrangian and Hamiltonian Field Theories Hamiltonian form weakly associated to L so that the associated Hamiltonian map satisfies a condition H ◦ L ◦ s = J 1 (π01 ◦ s).
T Π -valued) form on Π . 44). 45) on Π so that a relation ΥY φ = d(ΘY φ) holds for an arbitrary exterior one-form φ on X . 45) is termed the polysymplectic form. 45) is said to be the polysymplectic manifold. 7). 17), we define Hamiltonian connections on a polysymplectic manifold. Let J 1 Π be the first order jet manifold of a composite Legendre bundle Π → X . λ ). , γ ΥY = dpiλ ∧ dy i ∧ ωλ − (γλi dpiλ − γλiλ dy i ) ∧ ω = d Hγ . 47) Components of a Hamiltonian connection satisfy the conditions ∂λi γμj − ∂μj γλi = 0, μ μ ∂i γμj − ∂ j γμi = 0, μ ∂ j γλi + ∂λi γμj = 0.
15) shows that it is not a density. 8 By analogy with Hamiltonian mechanics (Sect. 5), −h is said to be the covariant Hamiltonian of covariant Hamiltonian formalism. 52) H = h ∗ ΞY = piλ dy i ∧ ωλ − H ω (cf. 49)) of a multisymplectic Liouville form ΞY onto a Legendre bundle Π which is called the Hamiltonian form on Π . The following is a straightforward corollary of this definition. 2 (i) Hamiltonian forms constitute a non-empty affine space modelled over a linear space of horizontal densities H = H ω on Π → X .
Noether's Theorems: Applications in Mechanics and Field Theory by Gennadi Sardanashvily
by William
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