Quadratic lagrangians and general relativity Page 1 IL NUOVO CIMENT0 VOL. XI, N. 6 16 Marzo
1959 Quadratic Lagrangians and General Relativity. PW ]~IGGS Department o] Mathematics …

Come lagrangiani, in tre principi variazionali si usano gli invarianti quadratici del tensore di
curvatura di Riemann-Christoffel e le sue contrazioni in uno spazio riemanniamo …

Theories of gravitation similar to General Relativity but with an additional R 2 term in the
Lagrangian are explored. The Schwarzschild metric is not the exterior solution that can be …

The purpose of these lectures was to give a survey of Einstein's theory of gravitation. Since
special astrophysical topics have been covered by other lecturers and the principal …

Field equations which arise from (second order) non-linear Lagrangians are generally of the
fourth differential order. If the Lagrangian is scale-invariant the equations admit arbitrary …

749 Letters to the Editor Page 1 749 Letters to the Editor The OpmlOn5 eJ:pressed in these
columns do not necessarily reflect those of the Board oj Editors. Communications should be …

The problem of reducing the Lagrangian for the interacting gravitational and Dirac fields to
canonical form is discussed, using the vierbein formalism. The arbitrary gauge variables …

The approach togravitation in flat space—time has proved to be invariant under gauge
transformations been developed by Thirring, Sexl, Deser, Cavalleri of the unobservable …

Volume 76B, number 5 PHYSICS LETTERS 3 July 1978 A GEOMETRIC GRAVITY
LAGRANGIAN PC WEST Physics Department, Blackett Laborator Page 1 Volume 76B …

The theory which is presented in the following pages conceivably constitutes the farthest-
reaching generalization of a theory which, today, is generally called the “theory of relativity”; I …