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The equivariant signature of hypersurface singularities and eta- invariant. (English) Zbl 0821.32030
Consider the monodromy action associated to a germ of a hypersurface singularity. It preserves the intersection form of its Milnor fibre. In the paper, the corresponding equivariant signatures are studied.

MSC:
32S25 Complex surface and hypersurface singularities
32S40 Monodromy; relations with differential equations and \(D\)-modules (complex-analytic aspects)
14J17 Singularities of surfaces or higher-dimensional varieties
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