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\(L^ 2\)-Dolbeault complexes on singular curves and surfaces. (English) Zbl 0684.58040

Summary: Give the smooth part of a singular curve or normal surface the metric induced from the ambient projective space. On this incomplete manifold the minimal \(L^ 2{\bar \partial}\)-complex of (0,q)-forms has finite- dimensional cohomology groups. The Euler characteristic of this cohomology equals the Todd genus of any desingularization of the singular variety.

MSC:

58J20 Index theory and related fixed-point theorems on manifolds
58J10 Differential complexes
57R20 Characteristic classes and numbers in differential topology
32J25 Transcendental methods of algebraic geometry (complex-analytic aspects)
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