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BEGIN:VEVENT
UID:DSC-9990
DTSTART;TZID=Europe/Berlin:20151023T131500
SEQUENCE:1444128017
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20151023T141500
URL:https://dresden-science-calendar.de/calendar/en/detail/9990
LOCATION:TUD Willers-Bau\, Zellescher Weg 12-1401069 Dresden
SUMMARY:Barham: Locally Moving Clones
CLASS:PUBLIC
DESCRIPTION:Speaker: Dr. Robert Barham\nInstitute of Speaker: TU Dresden\, 
 Institut für Algebra\nTopics:\nMathematik\n Location:\n  Name: TUD Willer
 s-Bau (WIL C 115)\n  Street: Zellescher Weg 12-14\n  City: 01069 Dresden\n
   Phone: \n  Fax: \nDescription: A locally moving group is a group that ac
 ts on a complete atomless Boolean algebra in a special way. These were int
 roduced by M. Rubin to study reconstruction from automorphism groups. A lo
 cally moving clone is a clone where: 1. the group of invertible elements i
 s a locally moving group\; and 2. there are enough `algebraically canonica
 l' elements. After defining these things fully\, I will prove that every l
 ocally moving polymorphism clone has automatic homeomorphicity with respec
 t to all polymorphism clones\, and that if (Q\,L) is a reduct of the ratio
 nals such that: 1. Aut(Q\,L) is not the symmetric group\; and 2. End(Q\,L)
 =Emb(Q\,L)\, then Pol(Q\,L) is locally moving.
DTSTAMP:20260716T023255Z
CREATED:20151006T103838Z
LAST-MODIFIED:20151006T104017Z
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