In the Fall 2017 semester, Noah Arbesfeld, Henry Liu, Petr Pushkar and Shuai Wang are organizing a seminar on Enumerative Geometry. If you're also interested in counting, please join us.

Location: Mathematics Building 622.

Time: Wednesday 2:30 pm-4:00 pm

Reference: Lectures on K-theoretic computations in enumerative geometry.

Title: ^{13}⁄_{2} ways of counting curves.

Time: Sep 13.

Reference:

Title: Donaleson-Thomas Theory.

Speaker: Dmitry Korb.Time: Sep 20.

Reference: Gromov-Witten theory and Donaldson-Thomas theory, I.

Title: Curve counting via stable pairs.

Speaker: Shuai Wang.Time: Sep 27.

Reference: Curve counting via stable pairs in the derived category.

Title: Wall crossing, curve counting and Jacobi forms.

Speaker: Shuai Wang.Time: Oct 4.

References:

Curve counting on elliptic Calabi-Yau threefolds via derived categories.

Hall algebras in the derived category and higher rank DT invariants.

Fourier-Mukai transforms for K3 and elliptic fibrations.

Title: Equivariant vertex and topological strings.

Speaker: Iakov Kononov.Time: Oct 11.

Reference:

Title: Equivariant quantum cohomology of cotangent bundle of G/P I.

Speaker: Ivan Danilenko.Time: Oct 18.

Reference: Equivariant quantum cohomology of cotangent bundle of G/P.

Title: Equivariant quantum cohomology of cotangent bundle of G/P II.

Speaker: Ivan Danilenko.Time: Oct 25.

Reference: Equivariant quantum cohomology of cotangent bundle of G/P.

Title: The R-matrix from the Virasoro algebra.

Speaker: Noah Arbesfeld.Time: Nov 1.

Abstract: In his lectures, Vanya explained how to construct a geometric R-matrix using stable envelopes. I'll give another construction in the special case of instanton moduli space that uses the action of a certain Virasoro algebra on the cohomology of the Hilbert scheme of points on C^2 and explain why this construction coincides with the one we've already seen. .

Title: The R-matrix from the Virasoro algebra II.

Speaker: Noah Arbesfeld.Time: Nov 8.

Abstract: In his lectures, Vanya explained how to construct a geometric R-matrix using stable envelopes. I'll give another construction in the special case of instanton moduli space that uses the action of a certain Virasoro algebra on the cohomology of the Hilbert scheme of points on C^2 and explain why this construction coincides with the one we've already seen. .

Title: Quasimaps .

Speaker: Dmitry Korb.Time: Nov 29.

Reference: Lectures on K-theoretic computations in enumerative geometry.

Title: Quasimaps II.

Speaker: Petr Pushkar.Time: Dec 6.

Reference: Lectures on K-theoretic computations in enumerative geometry.

Title:Landau-Ginzburg/Calabi-Yau correspondence for Fermat quintic.

Speaker: Renata Picciotto.Time: Dec 13.