RT Journal Article T1 Generic behavior of asymptotically holomorphic Lefschetz pencils. A1 Amorós, Jaume A1 Muñoz, Vicente A1 Presas, Francisco AB We prove that the vanishing spheres of the Lefschetz pen-cils constructed by Donaldson on symplectic manifolds of anydimension are conjugated under the action of the symplec-tomorphism group of the fiber. More precisely, a numberof generalized Dehn twists may be used to conjugate thosespheres. This implies the non-existence of homologically triv-ial vanishing spheres in these pencils. To develop the proof,we discuss some basic topological properties of the space of asymptotically holomorphic transverse sections. PB International Press SN 1527-5256 YR 2004 FD 2004 LK https://hdl.handle.net/20.500.14352/50618 UL https://hdl.handle.net/20.500.14352/50618 LA eng NO CICYT NO Research Training Network DS Docta Complutense RD 12 abr 2025