97 citations · 1.3k across the 85 of their papers we have counts for
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Consistent interactions and involution
D. S. Kaparulin, S. L. Lyakhovich, A. A. Sharapov
Starting from the concept of involution of field equations, a universal method is proposed for constructing consistent interactions between the fields. The method equally well appl…
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…
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…