We revise the subject of N-component fractional quantum Hall systems and its field-theoretic
description in terms of U (N)-invariant nonlinear sigma models under a group-theoretical …

As it is commonly understood, the Higgs mechanism is designed to introduce the masses of
the gauge bosons by a spontaneous breaking of the gauge symmetry by an additional field …

The possibility of nontrivial representations of the gauge group on wave functionals of a
gauge invariant quantum field theory leads to a generation of mass for intermediate vector …

We report briefly on an approach to quantum theory entirely based on symmetry grounds
which improves Geometric Quantization in some respects and provides an alternative to the …

A physical and geometrical interpretation of previously introduced tensor operator algebras
of U (2, 2) in terms of algebras of higher-conformal-spin quantum fields on the anti-de Sitter …

The standard gauge theory for internal as well as space-time symmetries is revisited. Then
we propose an extension of the gauge and diffeomorphism symmetry allowing for infinitely …

We analyze the symmetry group of massive Yang–Mills theories and their quantization
strongly motivated by an already proposed alternative to the standard model of electroweak …

The possibility of non-trivial representations of the gauge group on wavefunctionals of a
gauge invariant quantum field theory leads to a generation of mass for intermediate vector …

We extend the traditional formulation of Gauge Field Theory by incorporating the (non-
Abelian) gauge group parameters (traditionally simple spectators) as new dynamical …

The present investigation is an attempt to understand the fermion mass ratios in the
framework of QED of charged fermions without a bare mass. Since QED of massless …