On the Classification of Spherical Rigid CR Manifolds and Sasakian Manifolds in C2

Title
On the Classification of Spherical Rigid CR Manifolds and Sasakian Manifolds in C2
Publication Date
2021-10-06
Author(s)
Sykes, Daniel
Schmalz, Gerd
( supervisor )
OrcID: https://orcid.org/0000-0002-6141-9329
Email: schmalz@une.edu.au
UNE Id une-id:schmalz
Harris, Adam
( supervisor )
OrcID: https://orcid.org/0000-0002-1259-1122
Email: aharris5@une.edu.au
UNE Id une-id:aharris5
Abstract
Please contact rune@une.edu.au if you require access to this thesis for the purpose of research or study.
Type of document
Thesis Masters Research
Language
en
Entity Type
Publication
Publisher
University of New England
Place of publication
Armidale, Australia
UNE publication id
une:1959.11/56979
Abstract

We consider spherical hypersurfaces in C2 with a fixed Reeb vector field as 3-dimensional Sasakian manifolds. We establish the correspondence between three different sets of parameters, namely, those arising from representing the Reeb vector field as an automorphism of the Heisenberg sphere, the parameters used in Stanton’s description of rigid spheres, and the parameters arising from the rigid normal forms. We also geometrically describe the moduli space for rigid spheres, and provide geometric distinction between Stanton’s hypersurfaces and those found in [17]. We determine the Sasakian automorphism groups of the rigid spheres, detecting the homogeneous Sasakian manifolds amongst them, and we determine the Sasakian automorphisms of the CR manifolds arising in E. Cartan’s classical list of homogeneous CR hypersur- ´ faces. Furthermore, we relax the condition on the Reeb vector field to allow preservation up to a nonzero dilation, called homothetic Sasakian preservation. Finally, we determine the homogeneous Sasakian manifolds with respect to the homothetic Sasakian preservation.

Link

Files:

NameSizeformatDescriptionLink