by
ALEXANDER DEGTYAREV
(BÝLKENT UNIVERSITY)
Abstract: Paraphrasing A. Marin, we are "à la
recherche de la géométrie algébrique perdue": a journey to forgotten
algebraic geometry. Following Ethel I. Moody and taking her notes a bit
further, I will discuss explicit equations (not just a formal
construction in terms of some sheaves and their sections) describing the
beautiful Bertini involution and related maps and curves. Should time permit, I
will also say a few words justifying my interest in the subject: the Bertini
involution can be used to produce explicit equations of the so-called
maximizing plane sextics. In theory, all sextics that are still not understood
can be handled in this way, but alas, sometimes Maple runs out of memory trying
to solve the equations involved.
Date: 3 May 2013, Friday
Time: 15.40
Place: Bilkent,
Mathematics Seminar Room SA-141
Tea
and cookies will be served before the talk.
You are most cordially invited.