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Good recursive towers

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Authors : Bassa, Alp (Author of the conference)
CIRM (Publisher )

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Abstract : Curves over finite fields of large genus with many rational points have been of interest for both theoretical reasons and for applications. In the past, various methods have been employed for the construction of such curves. One such method is by means of explicit recursive equations and will be the emphasis of this talk.The first explicit examples were found by Garcia–Stichtenoth over quadratic finite fields in 1995. Afterwards followed the discovery of good towers over cubic finite fields and finally all nonprime finite fields in 2013 (B.–Beelen–Garcia–Stichtenoth). The recursive nature of these towers makes them very special and in fact all good examples have been shown to have a modular interpretation of some sort. The questions of finding good recursive towers over prime fields resisted all attempts for several decades and lead to the common belief that such towers might not exist. In this talk I will try to give an overview of the landscape of explicit recursive towers and present a recently discovered tower over all finite fields including prime fields, except $F_{2}$ and $F_{3}$.
This is joint work with Christophe Ritzenthaler.

Keywords : recursive towers; curves over finite fields

MSC Codes :
11G20 - Curves over finite and local fields
11T71 - Algebraic coding theory; cryptography
14G05 - Rational points
14G15 - Finite ground fields
14H25 - Arithmetic ground fields, See also {11Dxx,11G05,14Gxx}

    Information on the Video

    Film maker : Hennenfent, Guillaume
    Language : English
    Available date : 04/07/2019
    Conference Date : 10/06/2019
    Subseries : Research talks
    arXiv category : Number Theory ; Algebraic Geometry ; Condensed Matter
    Mathematical Area(s) : Algebraic & Complex Geometry ; Number Theory
    Format : MP4 (.mp4) - HD
    Video Time : 01:05:44
    Targeted Audience : Researchers
    Download : https://videos.cirm-math.fr/2019-06-10_Bassa.mp4

Information on the Event

Event Title : AGCT - Arithmetic, Geometry, Cryptography and Coding Theory / AGCT - Arithmétique, géométrie, cryptographie et théorie des codes
Event Organizers : Ballet, Stéphane ; Bisson, Gaetan ; Bouw, Irene
Dates : 10/06/2019 - 14/06/2019
Event Year : 2019
Event URL : https://conferences.cirm-math.fr/1921.html

Citation Data

DOI : 10.24350/CIRM.V.19537303
Cite this video as: Bassa, Alp (2019). Good recursive towers. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.19537303
URI : http://dx.doi.org/10.24350/CIRM.V.19537303

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