Singularity Seminar

Singularity Theory 2012-2013

Seminars in past: 2006-2007 , 2008-2009 2009-2010 2010-2011 2011-2012
Access to the University from Narita Airport: Take JR (Narita Express) to Tokyo station, then take a Chuo line train to Ochanomizu (2nd station from Tokyo), then change to the Sobu line on the other side of the platform to get off at 2nd station, Iidabshi, at west exit

Tokyo University of Science, Department of Mathematics

1-3 Kagurazaka, Shinjuku-ku
Singularity theory, Geometry and related topics.
Organizer: Oka, Mutsuo, oka at rs.kagu.tus.ac.jp

April

Date, Room	Speaker, Title
23 Monday 16:10-17:30 Seminar room 734, No.7 Building	Andrei Pajitnov (Universit\'e de Nantes) The Novikov homology and complex hyperplane arrangements Abstract: In the first part of the talk we give a brief survey of the Novikov homology and its applications to to the topology of circle-valued Morse functions and more generally, closed 1-forms. In the second part we compute the Novikov homology of the complement to a complex hyperplane arrangement. We show that for an essential arrangement in an n-dimensional complex vector space the Novikov homology of its complement vanishes in all degrees except n. This is a joint work with Toshitake Kohno.

Date, Room

Speaker, Title

23 Monday
16:10-17:30
Seminar room 734, No.7 Building

Andrei Pajitnov (Universit\'e de Nantes)
The Novikov homology and complex hyperplane arrangements

Abstract: In the first part of the talk we give a brief survey of the Novikov homology and its applications to to the topology of circle-valued Morse functions and more generally, closed 1-forms. In the second part we compute the Novikov homology of the complement to a complex hyperplane arrangement. We show that for an essential arrangement in an n-dimensional complex vector space the Novikov homology of its complement vanishes in all degrees except n. This is a joint work with Toshitake Kohno.