buondì,
vorrei annunciarvi il seminario di geometria di domani (mercoledì),
siete ovviamente tutti invitati.
Bruno
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MERCOLEDI' 18 SETTEMBRE 2013
14:30-15:30, Sala Seminari (Dip. Matematica)
SEMINARI DI GEOMETRIA
Seifert surgery network and chain links
Kimihiko Motegi
We propose a new approach in studying Dehn surgeries on knots in the
3--sphere yielding Seifert fiber spaces.
Our basic idea is finding relationships among such surgeries.
To describe relationships and get a global picture of Seifert surgeries,
we introduce ``seiferters'' and the Seifert Surgery Network,
a 1--dimensional complex whose vertices correspond to Seifert surgeries.
We make a survey of the Seifert surgery network and then discuss some
relationships between the network and chain links.
