Fall 2026 Schedule: Mondays, 1:25–2:15 pm in SC 1313
Organizers: Anna Marie Bohmann, Rares Rasdeaconu, Ioana Suvaina

Monday, September 14, 2026

Speaker: Joshua Jordan (Vanderbilt University)
Title: Non-Kahler Calabi-Yau Geometry I: A Crash Course

Abstract: My research is focused on the existence of special Hermitian metrics on complex manifolds. In this talk, I will introduce some of the basic concepts and objects involved in complex differential geometry: Kahler forms, the Levi-Civita connection, the Ricci form, and the first Chern class. Then, I will give a very quick account of Yau's theorem before pivoting to the problem of how such a result might be generalized to the non-Kahler setting.

Contact person: Ioana Suvaina and Rares Rasdeaconu

Monday, September 21, 2026

Speaker: Joshua Jordan (Vanderbilt University)
Title: Non-Kahler Calabi-Yau Geometry II: Some Results for Bismut-Ricci Curvature on Pluriclosed Manifolds

Abstract: We will discuss some obstructions to the existence of "Bismut Hermitian-Einstein" metrics, providing counter-examples to a naive generalization of Calabi-Yau metrics. The obstruction will require us to introduce some concepts from generalized complex geometry. These tools will also prove to be very helpful for studying the flow equation. To attempt to overcome these obstructions, we will consider a generalization of the Kahler condition coming out of generalized complex geometry and some Monge-Ampere-type PDEs that arise in the quest for non-Kahler Calabi-Yau metrics in this setting.

Contact person: Ioana Suvaina and Rares Rasdeaconu

Monday, October 5, 2026

Note: There is no regular Geometry & Topology Seminar talk on this date.

Special Event — Colloquium

Alex Kantorovich (Rutgers University)
Colloquium

Details and departmental Colloquium schedule: Vanderbilt Math Colloquium

Monday, October 12, 2026

Speaker: Danika van Niel (Binghamton University)
Title: TBA

Abstract: TBA.

Contact person: Anna Marie Bohmann

Special Event — November 14–15, 2026

Facets of Complex Differential Geometry - Shanks Workshop

Details: Facets of Complex Differential Geometry

Organizers: Rares Rasdeaconu and Ioana Suvaina

Monday, November 2, 2026

Speaker: Nathan Kershaw (University of Western Ontario)
Title: TBA

Abstract: TBA

Contact person: Chris Kapulkin

Old Seminar Web-Pages