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math-ph2012
Lagrange Anchor for Bargmann-Wigner equations
D. S. Kaparulin, S. L. Lyakhovich, A. A. Sharapov
A Poincare invariant Lagrange anchor is found for the non-Lagrangian relativistic wave equations of Bargmann and Wigner describing free massless fields of spin s > 1/2 in four-dime…
math-ph2012★ 21 cited
BRST analysis of general mechanical systems
D. S. Kaparulin, S. L. Lyakhovich, A. A. Sharapov
We study the groups of local BRST cohomology associated to the general systems of ordinary differential equations, not necessarily Lagrangian or Hamiltonian. Starting with the invo…