Abstract
In this note we give a simple proof of the following relative analog of the
well known Milnor-Palamodov theorem: the Bruce-Roberts number of a function
relative to an isolated hypersurface singularity is equal to its topological
Milnor number (the rank of a certain relative (co)homology group) if and only
if the hypersurface singularity is quasihomogeneous. The proof relies on an
interpretation of the Bruce-Roberts number in terms of differential forms and
the Lê-Greuel formula.
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