[Turkmath:6693] ODTU-Bilkent Algebraic Geometry Seminar-Zoom-555

[Ali Sinan Sertöz]

*Welcome to the 2024 Fall 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=20241108T1540&p1=19&ah=1>
*=================================================================*

/Vera Kober <https://www.verakober.com/>/
**
**
**Speaker: Ali Ulaş Özgür Kişisel <https://avesis.metu.edu.tr/akisisel>
****Affiliation: /ODTÜ
/**
**/
/**
**Title: *Irreversible odd degree curves in $\mathbb{RP}^2$
*
**
**Abstract: **A smooth hypersurface $X\subset \mathbb{RP}^{n+1}$ of 
degree $d$ is called reversible if its defining homogeneous polynomial 
$f$ can be continuously deformed to $-f$ without creating singularities 
during the deformation. The question of reversibility was discussed in 
the paper titled ``On the deformation chirality of real cubic 
fourfolds'' by Finashin and Kharlamov. For $n=1$, the case of plane 
curves, and $d\leq 5$ odd, it is known that all smooth curves of degree 
$d$ are reversible. Our goal in this talk is to present an obstruction 
for reversibility of odd degree curves and use it in particular to 
demonstrate that there exist irreversible curves in $\mathbb{RP}^2$ for 
all odd degrees $d\geq 7$. This talk is based on joint work in progress 
with Ferit Öztürk.

*Date:8 November 2024*, *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.)/
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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
Fax: (90)-(312) - 290 1797
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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