Equivariant Milnor Numbers and Invariant Morse Approximations

DOI10.1112/JLMS/S2-31.3.487zbMath0535.57019OpenAlexW2083239112MaRDI QIDQ3319435

Roberts, Mark

Publication date: 1985

Published in: Journal of the London Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1112/jlms/s2-31.3.487

zbMATH Keywords

deformationreflection groupspermutation representationequivariant Milnor numbersgerm of a G-invariant holomorphic function with an isolated critical pointinvariant Morse approximationsymmetries of singularities.

Mathematics Subject Classification ID

Equivariant algebraic topology of manifolds (57R91) Finite transformation groups (57S17) Singularities of differentiable mappings in differential topology (57R45) Critical points and critical submanifolds in differential topology (57R70) Deformations of complex singularities; vanishing cycles (32S30) Theory of singularities and catastrophe theory (58K99) Differentiable maps on manifolds (58C25) Complex singularities (32Sxx)

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