RUS  ENG JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PERSONAL OFFICE
Forthcoming seminars
Seminar calendar
List of seminars
Archive by years
Register a seminar

Search
RSS
Forthcoming seminars





You may need the following programs to see the files








Iskovskikh Seminar
April 26, 2018 18:00, Moscow, Steklov Mathematical Institute, room 540
 


Specialization of a birational equivalence

A. I. Efimov

Number of views:
This page:46

Abstract: We will explain the proof of the following theorem of Kontsevich and Tschinkel. Let $X\to B$ and $X'\to B$ be smooth and proper morphisms to a smooth connected curve $B$ over a field of characteristic zero. Suppose that their fibers over the generic point are birational (over the function field of $B$). Then their fibers over any closed point $b\in B$ are birational (over the residue field at $b$).

SHARE: VKontakte.ru FaceBook Twitter Mail.ru Livejournal Memori.ru
 
Contact us:
 Terms of Use  Registration  Logotypes © Steklov Mathematical Institute RAS, 2019