3 papers
math-ph2001
Group Invariant Solutions in Mathematical Physics and Differential Geometry
I. M. Anderson, M. E. Fels, C. G. Torre
This is a brief overview of our work on the theory of group invariant solutions to differential equations. The motivations and applications of this work stem from problems in diffe…
gr-qc1994
The Problems of Time and Observables: Some Recent Mathematical Results
C. G. Torre
We present 2 recent results on the problems of time and observables in canonical gravity. (1) We cannot use parametrized field theory to solve the problem of time because, strictly…
hep-th1991
A Deformation Theory of Self-Dual Einstein Spaces
C. G. Torre
The self-dual Einstein equations on a compact Riemannian 4-manifold can be expressed as a quadratic condition on the curvature of an (spin) connection which is a covariant…