BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20200329T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20191027T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260406T022539Z
UID:5ca2144ecb1f0574712841@ist.ac.at
DTSTART:20191114T113000
DTEND:20191114T123000
DESCRIPTION:Speaker: Vladimir Mitankin\nhosted by Timothy Browning\nAbstrac
 t: In 2017 Ghosh and Sarnak predicted how often the integral Hasse princip
 le should fail in the family of Markoff surfaces. They were able to obtain
  a lower bound for this quantity but its magnitude is still far away from 
 the expectation. In this talk we will explain what can be achieved for thi
 s family using tools from Arithmetic geometry developed for studying failu
 res of local-to-global principles. In particular\, we will explain how to 
 get sharp upper and lower bounds for the number of failures of the Hasse p
 rinciple for integral points explained by the Brauer-Manin obstruction. Mo
 reover\, we will give a lower bound for the number of failures which are n
 ot explained by the Brauer-Manin obstruction. This talk is based on a join
  work with Dan Loughran.
LOCATION:Heinzel Seminar Room / Office Bldg West (I21.EG.101)\, ISTA
ORGANIZER:boosthui@ist.ac.at
SUMMARY:Vladimir Mitankin: Integral points on Markoff surfaces
URL:https://talks-calendar.ista.ac.at/events/2150
END:VEVENT
END:VCALENDAR