Milnor numbers and Euler obstruction
We determine the relation between the local Euler obstruction $Eu_f$ of a holomorphic function $f$ and different generalizations of the Milnor number for functions on singular spaces.
math.CV↗
arXiv subjects
Alberto Verjovsky
Publications and source records attributed to Alberto Verjovsky.
Global Euler obstruction and polar invariants
For an affine complex algebraic singular space Y, we define a global Euler obstruction Eu(Y) which extends the Euler-Poincare characteristic of a nonsingular Y. Using Lefschetz pencils, we express Eu(Y) as alternating sum of global polar invariants.
math.AG↗