Cosmology in 2+1- Dimensions, Cyclic Models, and Deformations of M2,1 Guillemin Victor
Cosmology in 2+1- Dimensions, Cyclic Models, and Deformations of M2,1 Guillemin Victor The subject matter of this work is an area of Lorentzian geometry which has not been heretofore much…
Specifikacia Cosmology in 2+1- Dimensions, Cyclic Models, and Deformations of M2,1 Guillemin Victor
Cosmology in 2+1- Dimensions, Cyclic Models, and Deformations of M2,1 Guillemin Victor
The subject matter of this work is an area of Lorentzian geometry which has not been heretofore much investigated: Do there exist Lorentzian manifolds all of whose light-like geodesics are periodic? This book is concerned with the deformation theory of M2,1 (which furnishes almost all the known examples of these objects). A surprising fact is that such manifolds exist in abundance in (2 + 1)-dimensions (though in higher dimensions they are quite rare).
It also has a section describing conformal invariants of these objects, the most interesting being the determinant of a two dimensional Floquet operator, invented by Paneitz and