The purpose of this paper, which is a continuation of the recently published Part I, is the
proof that the quantum mechanics of a particle can be derived from the new field theory, with …

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 …

Existing attempts to apply the quantum theory to the electromagnetic field are open to
serious objections. Above all, the time is treated differently from the space co-ordinates; the …

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 …

There are many regions for preferring the point model of the electron, in which the field
equations of empty space hold all the way up to the centre of the electron, to the Lorentz …

The present expository paper is based on lectures given in a Seminar on Mathematical
Physics at New York University.'It is primarily addressed to mathematicians who are familiar …

The quantum field theory is presented in terms of Euclidean parameters. It is shown that this
theory is equivalent to the conventional one in terms of the Minkowski parameters, if we …

The results of a previous paper on the gauge problem in quantum electrodynamics are
generalized to the gravitational case. In particular, the difficulties connected with the …

W~ working from a classical action principle. If one takes the action to be Lorentz invariant,
the classical theory must be relativistic. With such an action, by following a standard method …

We wish to show that in a local quantum field theory which describes zero-mass particles the
existence of a vacuum state is neither derivable from nor contradicted by the field equations …