15 research outputs found
The Euler characteristic of a generic wave front in a 3‐manifold
We give a relation between Euler characteristics of a generic closed Legendrian surface and its wavefront
The Euler number of a topologically stable singular surface in a 3‐manifold
A formula for the Euler number of a generic singular surface in a 3-manifold is given. This formula not only unifies the previous results but also allows some new applications
The Euler characteristic of a generic wave front in a 3-manifold
We give a relation between Euler characteristics of a generic closed Legendrian surface and its wavefront
The Euler characteristic of the image of a stable mapping from a closed n-manifold to a (2n - l)-manifold
The Euler number of a topologically stable singular surface in a 3-manifold
A formula for the Euler number of a generic singular surface in a 3-manifold is given. This formula not only unifies the previous results but also allows some new applications
Mapping fibrations and multiple point schemes
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