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Seminars

Automorphism groups on normal singular cubic surfaces with parameters

Hold Date
2008-10-27 15:30〜2008-10-27 17:00
Place
Hakozaki campus, Science Building no.1, room 1434
Object person
 
Speaker
坂巻 慶行 (九大数理)

summary:
Automorphism groups on smooth cubic surfaces were  determined by B.Segre (1942), T.Hosoh (1997) and so forth. On the other hand,  J.W.Bruce and C.T.C.Wall (1979) classified normal singular cubic surfaces, by modern  singularity terminology using the Dynkin diagram. According to type of 
singularities, automorphism groups on normal singular cubic surfaces with no parameters were 
determined in my master thesis (2006).  In this seminar, we present a method for the  determination of automorphism groups on normal singular cubic surfaces  with parameters according to type of singularities, and we release the results obtained.