In this paper, a covariant field theory of the general type of the theory of relativity is brought
into the canonical form and then quantized. Particles are assumed to be represented as …

This is the first paper in a program concerned with the quantization of field theories which
are covariant with respect to general coordinate transformations, like the general theory of …

In a unitary field theory particles appear not as singularities but as small volumes in which
energy and charge of the field are concentrated. In a theory of this nature, which is …

The new field theory has been developed in two papers. The first, quoted as I, contains not
only a classical treatment, but also an attempt at quantization; the second, quoted as II, a …

In this paper we have considered certain problems which arise when one attempts to cast a
covariant field theory into a canonical form. Because of the invariance properties of the …

In this paper we have given a specific example of a Hamiltonian of a non-linear field theory,
a Hamiltonian density completely free of time derivatives. In accordance with the general …

We suggest that certain nonlinear field theories possess a particle spectrum, richer than has
been heretofore discussed. In addition to states associated with quantization of the free-field …

By means of a canonical transformation we investigate nonlinear field theories that possess
exact classical solutions. This transformation is equivalent to the method of collective …

In this paper, we have first examined the relationship between the transformation properties
of a (nonquantum) covariant field theory and its constraints, generating functionals …

A formulation of the equations of motion of singularities in classical electromagnetic theory is
obtained. The general method introduced by Einstein, Infeld and Hoffmann leads in a simple …