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The intersection form of a plane isolated line singularity. (English) Zbl 0745.32018
Singularity theory and its applications. Pt. I: Geometric aspects of singularities, Proc. Symp., Warwick/UK 1988-89, Lect. Notes Math. 1462, 172-184 (1991).
[For the entire collection see Zbl 0723.00028.]
For isolated critical points of a real analytic function $$f:\;(\mathbb{R}^ 2,0)\to(\mathbb{R},0)$$, the intersection matrices of the vanishing cycles (for the complexification) are obtained by A. M. Gabrielov [Funct. Anal. Appl. 7(1973), 182-193 (1974); translation from Funkts. Anal. Prilozh. 7, No. 3, 18-32 (1973; Zbl 0288.32011)] and S. M. Gusein-Zade [Funct. Anal. Appl. 8, 10-13 (1974); translation from Funkts. Anal. Prilozh. 8, No. 1, 11-15 (1974; Zbl 0304.14009)]. In the paper under review, the case of isolated line singularities (in the sense of Siersma) is treated, extending the method of Gusein-Zade.
Reviewer: M.Roczen (Berlin)

##### MSC:
 32S30 Deformations of complex singularities; vanishing cycles 14H20 Singularities of curves, local rings 32S05 Local complex singularities 14F25 Classical real and complex (co)homology in algebraic geometry 14C15 (Equivariant) Chow groups and rings; motives 57R70 Critical points and critical submanifolds in differential topology 57R45 Singularities of differentiable mappings in differential topology