Title of article :
Vanishing cycles of pencils of hypersurfaces
Author/Authors :
Mihai Tibar، نويسنده , , Mihai، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
We prove an extended Lefschetz principle for a large class of pencils of hypersurfaces having isolated singularities, possibly in the axis, and show that the module of vanishing cycles is generated by the images of certain variation maps.
Keywords :
Variation map , Topology of polynomial functions , Vanishing cycles , Nongeneric pencils , Second Lefschetz theorem , Monodromy