May 27 2020

Joint NU/UIC/UofC online algebraic geometry and commutative algebra seminar: Gonality of complete intersection curves, by Brooke Ullery

May 27, 2020

3:00 PM - 3:50 PM


Online Zoom seminar


Chicago, IL

Brooke Ullery (Harvard University): Gonality of complete intersection curves

The gonality of a smooth projective curve is the smallest degree of a map from the curve to the projective line. If a curve
is embedded in projective space, it is natural to ask whether the gonality is related to the embedding. In my talk, I will
discuss work with James Hotchkiss and Chung Ching Lau. Our main result is that, under mild degree hypotheses, the
gonality of a complete intersection curve in projective space is computed by projection from a codimension 2 linear space,
and any minimal degree branched covering of P^1 arises in this way.

Please see the seminar webpage for further details:

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Rankeya Datta

Date posted

May 27, 2020

Date updated

May 27, 2020


Brooke Ullery | (Harvard University)