Grzegorz Oleksik 

Title: Tworzewski's extended intersection index and Lê numbers in the case of 
line singularities

Abstract:
We describe the Tworzewski's construction of the extended index of 
intersection of analytic set with submanifold. We also present the 
Massey construction of Lê numbers. Finally the both constructions will 
be compared in the case of line singularities.