Riemannian Geometry IV
Epiphany 2015
The Michaelmas 2014 webpage
Time and place:   |
Lectures: | Tue 11:00, Wed 12:00, CM107 |
| Problems classes:   | Th 16:00, CM101, Weeks 13,15,17,19 |
Instructor: Pavel Tumarkin
e-mail: pavel dot tumarkin at durham dot ac dot uk
Office: CM110; Phone: 334-3085
Office hours: Tue 12:00 -- 13:00 and by appointment
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The content of the course can also be found in any standard textbook on Riemannian Geometry, e.g. |
- F. Morgan, Riemannian Geometry.
- T. Sakai, Riemannian Geometry.
- S. Gallot, D. Hulin, J. Lafontaine, Riemannian Geometry.
- P. Petersen, Riemannian Geometry.
Further (recommended) reading: |
Preliminary course content (subject to change):
introduction to Lie groups, Riemannian curvature tensor, Ricci curvature, sectional curvature and scalar curvature; manifolds of positive curvature and Bonnet-Myers theorem; Jacobi fields and conjugate points, manifolds of nonpositive curvature and Cartan-Hadamard theorem; comparison theorems.
Schedule:
Week 11: Lie groups: left-invariant vector fields and Lie algebras. Exponential map
Week 12: Adjoint representation. Riemannian metrics on Lie groups
Week 13: Riemann curvature tensor; sectional curvature, Ricci and scalar curvature
Week 14: Bonnet - Myers theorem; second variational formula of length, applications
Week 15: Jacobi fields; conjugate points
Week 16: Jacobi fields and exponential map; orthogonal Jacobi fields
Week 17: Conjugate points and minimizing geodesics; cut locus and conjugate points, examples
Week 18: Theorem of Cartan - Hadamard; index form, Rauch comparison theorem
Week 19: Injectivity radius, Sphere theorem; spaces of constant curvature, comparison triangles, theorem of Alexandrov - Toponogov
Handouts:
Homeworks: There will be weekly homework assignments. Selected exercises are to be handed in on weeks 13, 15, 17, and 19