[Turkmath:6000] ODTU-Bilkent Algebraic Geometry Seminar-Zoom-522

[Ali Sinan Sertöz]

*Welcome to the 2023 Spring talks of ODTU-Bilkent Algebraic Geometry 
Seminars**
*
/since 2000/
**=================================================================**

This week the ODTU-Bilkent Algebraic Geometry Seminar 
<http://www.bilkent.edu.tr/~sertoz/agseminar.htm>  is *online*

/This talk will begin at _*15:40*__ (GMT+3)_/
Please check your time difference between Ankara and your city here 
<https://www.timeanddate.com/worldclock/fixedtime.html?msg=ODT%C3%9C-Bilkent+Algebraic+Geometry+Seminar&iso=20230310T1540&p1=19>
*=================================================================*
image.png
**
/Alexandra Bryksa, Czech artist,
Heavenly Golden Light in the Gothic Barcelona, watercolor
/

**Speaker:Domenico Valloni <https://sites.google.com/view/domenico-valloni>
****Affiliation: /Hannover/****
Title:Rational points on the Noether-Lefschetz locus of K3 moduli spaces

**
**Abstract:**
Let L be an even hyperbolic lattice and denote by F_L the moduli space 
of L-polarized K3 surfaces. This parametrizes K3 surfaces X together 
with a primitive embedding of lattices L --->NS(X) and, when L = < 2d >, 
one recovers the classical moduli spaces of 2d-polarized K3 surfaces. In 
this talk, I will introduce a simple criterion to decide whether a given 
\bar{Q}-point of  F_L has generic Néron-Severi lattice (that is, NS(X) 
\cong L). The criterion is of arithmetic nature and only uses properties 
of covering maps between Shimura varieties.

*Date:10 March 2023*, *Friday*
*Time: 15:40 /(GMT+3)/*
*Place: **Zoom*

    **One day before the seminar, an announcement with the Zoom meeting
    link will be sent to those who registered with Sertöz.
    **

    **If you have registered before for one of the previous talks, there
    is no need to register again; you will automatically receive a link
    for this talk too.
    **

    **If you have not registered before, please contact him at
    sertoz at bilkent.edu.tr
    <mailto:sertoz at bilkent.edu.tr?subject=Zoom%20Seminar%20Address%20Request>.**


You are most cordially invited to attend.

Ali Sinan Sertöz
/(PS: To unsubscribe from this list please send me a note.)/
------------------------------------------------------------------------

----------------------------------------------------------------------------
Ali Sinan Sertöz
Bilkent Üniversitesi, Matematik Bölümü, 06800 Ankara
Ofis Tel: (312) - 290 1490
Bölüm Sekreterliği: (312) - 266 4377
Fax: (312) - 290 1797
e-posta:sertoz at bilkent.edu.tr  
Anasayfa: sertoz.bilkent.edu.tr
----------------------------------------------------------------------------
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://yunus.listweb.bilkent.edu.tr/pipermail/turkmath/attachments/20230306/b8a43ce0/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0H0wNtSfiLhIvAWp.png
Type: image/png
Size: 398568 bytes
Desc: not available
URL: <http://yunus.listweb.bilkent.edu.tr/pipermail/turkmath/attachments/20230306/b8a43ce0/attachment-0001.png>