MAT 644 
Topics in Differential Geometry 
Fall 2017 

TΘ 11:30-12:50
Physics P-123


Prof. Claude LeBrun.
Office: Math Tower 3-108.
Office hours: TΘ 2:00--3:30 pm.


Twistor Methods in Differential Geometry

This will be the first semester of a year-long course on twistor correspondences in Riemannian and pseudo-Riemannian geometry. The main focus of the Fall semester will be the Penrose correspondence for anti-self-dual 4-manifolds. We will also explore anti-self-dual 4-manifolds from several other points of view. Mastering this paradigmatic case will then prepare us for explorations of twistor correspondences in various other settings.

The lectures will presuppose a basic knowledge of Riemannian geometry, roughly at the level of MAT 568. Some familiarity with complex manifolds, say at the level of MAT 545, could also be extremely helpful.

Field trip: On Oct. 24 and 26, the class will attend the SCGP workshop instead of meeting in our usual classroom.

Grades will be based upon attendance and class participation.


The Professor may be reach by e-mail by .
This is the best method for making appointments outside normal office hours.


Illustration: Ruling lines on a quadric surface.


Disability Support Services (DSS) Statement: If you have a physical, psychological, medical, or learning disability that may affect your course work, please contact the office of Disabled StudentServices (DSS), Educational Communications Center (ECC) Building, room 128, telephone (631) 632-6748. They will determine with you what accommodations, if any, are necessary and appropriate. All information and documentation is confidential. Students who require assistance during emergency evacuation are encouraged to discuss their needs with their professors and Disability Support Services. For procedures and information go to the following website: http://www.stonybrook.edu/ehs/fire/disabilities.

Academic Integrity Statement: Each student must pursue his or her academic goals honestly and be personally accountable for all submitted work. Representing another person's work as your own is always wrong. Faculty are required to report any suspected instances of academic dishonesty to the Academic Judiciary. For more comprehensive information on academic integrity, including categories of academic dishonesty, please refer to the academic judiciary website, http://www.stonybrook.edu/commcms/academic_integrity/index.html.

Critical Incident Management Statement: Stony Brook University expects students to respect the rights, privileges, and property of other people. Faculty are required to report to the Office of Judicial Affairs any disruptive behavior that interrupts their ability to teach, compromises the safety of the learning environment, or inhibits students' ability to learn.