What Particles Are Described by the Weinberg Theory?
  The main goal of the paper is to study the origins of a contradiction between the Weinberg theorem B-A=\lambda and the `longitudinality' of an antisymmetric tensor field (and of a Weinberg field which is equivalent to it), transformed on the (1,0)\oplus (0,1) Lorentz group representation. On the basis of analysis of dynamical invariants in the Fock space situation has been partly clarified. 
Valeri Dvoeglazov (Universidad Autonoma de Zacatecas)