Work

Minimal number of singular fibers in a Lefschetz fibration

Year: 2000
Type: article
Abstract: There exists a (relatively minimal) genus g g Lefschetz fibration with only one singular fiber over a closed (Riemann) surface of genus h h iff g ≥ 3 g \geq 3 and h ≥ 2 h \geq 2 . The singular fiber can be chosen to be reducible or irreducible. Other results are that every Dehn twist on a closed surface of genus at least three is a product of two commutators and no Dehn twist on any closed surface is equal to a single commutator.
Language: English
Open Access status: bronze
OpenAlex ID: W1908672742
FWCI: 4.674
Cites: 14
Cited by: 37
Related to: 10