1 citations · 1 across the 2 of their papers we have counts for
4 papers
Intersection number of a map with the set of matrices of positive corank
Iwona Krzyżanowska, Aleksandra Nowel
The definition of the intersection number of a map with a closed manifold can be extended to the case of a closed stratified set such that the difference between dimensions of its…
Criteria for singularities for mappings from two--manifold to the plane. The number and signs of cusps
Iwona Krzyżanowska, Aleksandra Nowel
Let M be a two--dimensional complete intersection. We show how to check whether a mapping f: M-->R^2 is 1-generic with only folds and cusps as singularities. In this case we give a…
Cross-cap singularities counted with sign
Iwona Krzyżanowska
There is presented a method for computing the algebraic number of cross-cap singularities for mapping from m dimensional compact manifold with boundary M into R^(2m-1), m is odd. A…
On polynomial mappings from the plane to the plane
Iwona Krzyżanowska, Zbigniew Szafraniec
Let f be a generic polynomial mapping mapping from the plane to the plane. There are constructed quadratic forms whose signatures determine the number of positive and negative cusp…