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Computing Ceresa classes of curves

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Authors : Srinivasan, Padmavathi (Author of the conference)
CIRM (Publisher )

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Abstract : The Ceresa class is the image under a cycle class map of a canonical algebraic cycle associated to a curve in its Jacobian. This class vanishes for all hyperelliptic curves, and is known to be non-vanishing for the generic curve of genus at least 3. It is necessary for the Ceresa class to have infinite order for the Galois action on the fundamental group of a curve to have big image. We will present an algorithm for certifying that a curve over a number field has infinite order Ceresa class.

N.B. This is preliminary joint work with Jordan Ellenberg, Adam Logan and Akshay Venkatesh.

Keywords : Ceresa cycle; Ceresa class; nontriviality in the Griffiths group

MSC Codes :
11G30 - Curves of arbitrary genus or genus $\ne 1$ over global fields [See also 14H25]
11G40 - $L$-functions of varieties over global fields; Birch-Swinnerton-Dyer conjecture
14C25 - Algebraic cycles
14H25 - Arithmetic ground fields, See also {11Dxx,11G05,14Gxx}
14Q05 - Computational aspects of algebraic curves

    Information on the Video

    Film maker : Petit, Jean
    Language : English
    Available date : 28/06/2023
    Conference Date : 06/06/2023
    Subseries : Research talks
    arXiv category : Algebraic Geometry ; Number Theory
    Mathematical Area(s) : Algebraic & Complex Geometry ; Number Theory
    Format : MP4 (.mp4) - HD
    Video Time : 01:00:07
    Targeted Audience : Researchers ; Graduate Students ; Doctoral Students, Post-Doctoral Students
    Download : https://videos.cirm-math.fr/2023-06-06_srinivasan.mp4

Information on the Event

Event Title : AGCT - Arithmetic, Geometry, Cryptography and Coding Theory / AGCT - Arithmétique, géométrie, cryptographie et théorie des codes
Event Organizers : Anni, Samuele ; Bruin, Nils ; Kohel, David ; Martindale, Chloe
Dates : 05/06/2023 - 09/06/2023
Event Year : 2023
Event URL : https://conferences.cirm-math.fr/2889.html

Citation Data

DOI : 10.24350/CIRM.V.20054803
Cite this video as: Srinivasan, Padmavathi (2023). Computing Ceresa classes of curves. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.20054803
URI : http://dx.doi.org/10.24350/CIRM.V.20054803

See Also

Bibliography

  • ELLENBERG, Jordan, LOGAN, Adam, SRINIVASAN, Padmavathi et VENKATESH, Akshay. Certifying nontriviality of Ceresa class of curve. In preparation. -

  • BESSER, Amnon, SRINIVASAN, Padmavathi. Certifying nontriviality of the Ceresa cycle using p-adic integration. In préparation. -



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