[Turkmath:7413] ODTU-Bilkent Algebraic Geometry Seminar-Zoom-580

[Ali Sinan Sertöz]

*Welcome to the 2026 Spring talks of ODTÜ-Bilkent Algebraic Geometry 
Seminars**
*
/since 2000/
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This week the ODTÜ-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=20260306T1540&p1=19&ah=1>
*=================================================================

*

/Ben Viegers (1886-1947)
/
/
/
/
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**Speaker: Pierrick Bousseau 
<https://www.maths.ox.ac.uk/people/pierrick.bousseau>**
******Affiliation: /Oxford/**
**Title:  BPS polynomials and Welschinger invariants
**
**Abstract:** Using tropical geometry, Block-Göttsche defined 
polynomials with the remarkable property to interpolate between 
Gromov-Witten counts of complex curves and Welschinger counts of real 
curves in toric del Pezzo surfaces. I will describe a generalization of 
Block-Göttsche polynomials to arbitrary, not-necessarily toric, rational 
surfaces and propose a conjectural relation with refined 
Donaldson-Thomas invariants. This is joint work with Hulya Arguz.

*Date: 6 March 2026, Friday*
*Time: 15:40 /(GMT+3)/*
*Place: **Zoom*

    /*Participants who have registered will receive the Zoom link via
    email one day before the seminar.*/

    /*If you registered for a previous talk in this series, there's no
    need to register again—you'll automatically receive the link for
    this session.*/

    /*If you haven't registered yet, please contact
    sertoz at bilkent.edu.tr to be added to the mailing list.*/

You are most cordially invited to attend.

Ali Sinan Sertöz

*/*/This seminar series is organized by a joint team from ODTÜ and Bilkent

Alexander Degtyarev (Bilkent)
Ali Sinan Sertöz (Bilkent) contact person
Ali Ulaş Özgür Kişisel (ODTÜ)
Yıldıray Ozan (ODTÜ)
/*/*


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Ali Sinan Sertöz
Bilkent University, Department of Mathematics, 06800 Ankara, Türkiye
Office: (90)-(312) - 290 1490
Department: (90)-(312) - 266 4377
e-mail:sertoz at bilkent.edu.tr <mailto:sertoz at bilkent.edu.tr> 
Web:sertoz.bilkent.edu.tr <http://sertoz.bilkent.edu.tr> 
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