|  | 
MAT 644  | 
Prof. Claude LeBrun.  
Office: Math Tower 3-108.
 Office hours:  TΘ 2:00--3:30 pm. 
 
This will be the first semester of a year-long course on the Riemannian geometry of smooth compact 4-manifolds. Our main objective will be to understand how the differential topology of a 4-manifold constrains the curvature of the Riemannian metrics it supports. We will be particularly interested in the geometrization of 4-manifolds by metrics such as Einstein metrics and self-dual metrics, and one of the main goals of the course will be to outline the proofs of a number of existence and non-existence results regarding these special Riemannian metrics.
The lectures will presuppose a basic, core knowledge of Riemannian geometry, roughly at the level of MAT 568. Some familiarity with Kähler metrics, say at the level of MAT 545, would also be helpful.
Grades will be based upon class participation.
 
The Professor may be reach by e-mail by 
.
 
This is the best method for making appointments outside normal
office hours.
Illustration: Kummer surface with 16 real nodes. Graphic produced using surf software package.
DSS advisory. 
If you have a physical, psychiatric,
medical, or learning 
disability that could adversely affect 
your ability to carry 
out assigned course work, please contact
the  Disabled Student 
Services office (DSS), 
Educational Communications Center
 
(ECC) Building, room 128, (631) 632-6748.
  DSS will 
review your
situation and determine, with you, what accommodations are 
necessary and appropriate.  All information and documentation
regarding 
disabilities will be treated as strictly confidential. 
Students for whom special evacuation procedures might be necessary
in 
the event of 
an emergency are encouraged to discuss their
needs with both 
the instructor and with DSS. 
Important  information regarding these issues 
can also be found at the following web site: