5 papers
The Functional Measure of Gauge Theories in the Presence of Gribov Horizons
C. Becchi, S. Giusto, C. Imbimbo
We discuss the formal structure of a functional measure for Gauge Theories preserving the Slavnov-Taylor identity in the presence of Gribov horizons. Our construction defines a gau…
Introduction to Gauge Theories
C. Becchi
These lectures present an elementary introduction to quantum gauge fields. The first aim is to show how, in the tree approximation, gauge invariance follows from covariance and uni…
On the construction of renormalized gauge theories using renormalization group techniques
Carlo Becchi
The aim of these lectures is to describe a construction, as self-contained as possible, of renormalized gauge theories. Following a suggestion of Polchinski, we base our analysis o…
A Lagrangian Formulation of 2-Dimensional Topological Gravity and Čech-De-Rham Cohomology
Carlo M. Becchi, Camillo Imbimbo
We present a very simplified analysis of how one can overcome the Gribov problem in a non-abelian gauge theory. Our formulae, albeit quite simplified, show that possible breakdowns…
A Functional and Lagrangian Formulation of Two-Dimensional Topological Gravity
C. M. Becchi, R. Collina, C. Imbimbo
We reconsider two-dimensional topological gravity in a functional and lagrangian framework. We derive its Slavnov-Taylor identities and discuss its (in)dependence on the background…