Ohio State University Algebraic Geometry SeminarYear 2025-2026Time: Tuesdays 10:20-11:15amLocation: MW 154 (in person) or Zoom (virtual, email the organizers for the Zoom coordinates) |
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| TIME | SPEAKER | TITLE |
| August 26
Tue, 10:20am | Adrian Neff
(OSU) |
Residues and contractions of genus one curves |
| September 2
Tue, 10:20am |
( ) |
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| September 9
Tue, 10:20am |
Yiyu Wang
(OSU) |
|
| September 16
Tue, 10:20am |
( ) |
|
| September 23
Tue, 10:20am |
( ) |
|
| September 30
Tue, 10:20am |
( ) |
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| January 21
Tue, 10:20am |
( ) |
See also the Arithmetic Geometry Seminar
(Neff): Given a nodal genus one curve and a proper subcurve of genus one, we will construct a contraction that collapses the subcurve to a genus one singularity. We will do this by first introducing residues for curves over local artinian rings and "twists" of these residues by tropical data from the curve, then we will use these residues to explicitly construct the contraction.
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