Gauge theory for extended elementary objects

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Abstract
A gauge theory for extended objects is investigated in the framework of a modified Weyl theory. A length characterising a soldered fibre bundle over spacetime possessing a homogeneous space G/H of the de Sitter group G as fibre is considered as a gauged degree of freedom realised in particular isolated domains D(i) of spacetime which are characterised in size by a fundamental length parameter RO. Objects with extension determined by R0 appear as islands of Cartan-Weyl type (i.e. involving torsion and modified Weyl degrees of freedom) embedded in a pseudo-Riemannian space of general relativity. Extension and symmetry breaking are described by a set of additional fields.