HOẠT ĐỘNG TRONG TUẦN

Smooth complex projective rational varieties with infinitely many real forms
Speaker: Keiji Oguiso (University of Tokyo)

Time: 14h, Friday, 19/11/20211

Join Zoom Meeting

https://us02web.zoom.us/j/89603210669?pwd=dDJyYnJHd3A5WlR1cFFkRUlYa3loUT09

Meeting ID: 896 0321 0669
Passcode: 340252

Abstract: This is a joint work with Professors Tien-Cuong Dinh and Xun Yu. The real form problem asks how many different ways one can describe a given complex variety by polynomial equations with real coefficients up to isomorphisms over the real number field. For instance, the complex projective line has exactly two real forms up to isomorphisms. This problem is in the limelight again after a breakthrough work due to Lesieutre in 2018.

In this talk, among other relevant things, we would like to show that in each dimension greater than or equal to two, there is a smooth complex projective rational variety with infinitely many real forms.
This answers a question of Kharlamov in 1999.

Trở lại

09/12/22, Hội nghị, hội thảo:
Winter School on Mathematical Models and Dynamical Systems
16/12/22, Bài giảng viện:
Arational blowdown surgery on 4-manifolds
19/12/22, Hội nghị, hội thảo:
Một số vấn đề trong hình học và tô pô
08/08/23, Hội nghị, hội thảo:
Đại hội Toán học Việt Nam lần thứ X

Công bố khoa học mới