Graduate Student Seminar

Title: Pathologies on surfaces in characteristic p
Speaker: Xudong Zheng
Speaker Info: UIC
Brief Description:
Special Note:

In this talk, I will present some constructions of algebraic surfaces in characteristic p which violate the Kodaira vanishing theorem. These surfaces also provide counterexamples to Fujita's positivity theorem for fibered surfaces. Further pathologies on these examples include the existence of non-closed global differential 1-forms and global vector fields, which are both known to be impossible in characteristic zero.
Date: Friday, March 04, 2016
Time: 4:00pm
Where: Lunt 104
Contact Person: Corinna Wendisch
Contact email: wendisch@math.northwestern.edu
Contact Phone: 847-644-5889
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