Workshop Introductory Workshop: Enumerative Geometry Beyond Numbers

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Jan 22, 2018
Monday

01:45 PM - 03:15 PM		Introduction to Donaldson-Thomas theory, I Kai Behrend (University of British Columbia)
Location MSRI: Simons Auditorium Video Abstract Symmetric obstruction theories and weighted Euler characteristics: Definition and basic properties of counting invariants of Donaldson-Thomas type. Lecture 2: Beyond numbers: motivic enhancements or categorification, to be determined Supplements -- Show Detail

Jan 23, 2018
Tuesday

01:30 PM - 03:00 PM		Introduction to Donaldson-Thomas theory, II Kai Behrend (University of British Columbia)
Location MSRI: Simons Auditorium Video Abstract Symmetric obstruction theories and weighted Euler characteristics: Definition and basic properties of counting invariants of Donaldson-Thomas type. Lecture 2: Beyond numbers: motivic enhancements or categorification, to be determined. Supplements -- Show Detail

March 23, 2009 - March 27, 2009

Workshop Combinatorial, Enumerative and Toric Geometry

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Mar 26, 2009
Thursday

11:00 AM - 12:00 PM		The virtual Betti numbers of the Hilbert scheme of points on a Calabi- Yau threefold Kai Behrend (University of British Columbia)
Location MSRI: Simons Auditorium Video Abstract -- Supplements -- Show Detail

March 18, 2009
Seminar Emphasis Period Seminar: Donaldson-Thomas invariants are weighted Euler Characteristics

March 11, 2002 - March 15, 2002

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Mar 11, 2002
Monday

08:00 AM - 05:00 PM

A 2-Categorical Approach to Differential Graded
Kai Behrend (University of British Columbia)

Mar 15, 2002
Friday

11:30 AM - 12:30 PM		TBA Kai Behrend (University of British Columbia)
Location MSRI: Simons Auditorium Video -- Abstract -- Supplements -- Show Detail

January 10, 2002 - January 16, 2002

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Jan 11, 2002
Friday

02:30 PM - 03:30 PM

Cohomology of stacks: Cohomology of coherent sheaves
Kai Behrend (University of British Columbia)

Jan 13, 2002
Sunday

10:30 AM - 11:45 AM

Cohomology of stacks: Cohomology with discrete coefficients
Kai Behrend (University of British Columbia)

Jan 14, 2002
Monday

02:30 PM - 03:30 PM

Cohomology of stacks: Cohomology of quotient stacks and DM stacks
Kai Behrend (University of British Columbia)