Title of article
Commutators, Lefschetz fibrations and the signatures of surface bundles
Author/Authors
Endo، نويسنده , , H. and Korkmaz، نويسنده , , M. and Kotschick، نويسنده , , D. and Ozbagci، نويسنده , , B. and Stipsicz، نويسنده , , A.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
17
From page
961
To page
977
Abstract
We construct examples of Lefschetz fibrations with prescribed singular fibers. By taking differences of pairs of such fibrations with the same singular fibers, we obtain new examples of surface bundles over surfaces with nonzero signature. From these we derive new upper bounds for the minimal genus of a surface representing a given element in the second homology of a mapping class group.
Keywords
Surface bundles , Lefschetz fibrations , Mapping class groups
Journal title
Topology
Serial Year
2002
Journal title
Topology
Record number
1545343
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