## $$L^ 2$$-cohomology and index theorem for the Bergman metric.(English)Zbl 0532.58027

Let $$\Omega$$ be a strictly pseudoconvex domain in $${\mathbb{C}}^ n$$ endowed with its Bergman metric. The $$L_ 2$$ cohomology of $$\Omega$$ is infinite dimensional in the middle degree and vanishes for all other degrees. Asymptotic expansions are given for the Schwartz kernels of the corresponding projections onto harmonic forms. This includes an index theorem for the Dolbeault complex of the Bergman metric.

### MSC:

 58J10 Differential complexes 32T99 Pseudoconvex domains 32A25 Integral representations; canonical kernels (Szegő, Bergman, etc.) 53C55 Global differential geometry of Hermitian and Kählerian manifolds 53C15 General geometric structures on manifolds (almost complex, almost product structures, etc.) 58J60 Relations of PDEs with special manifold structures (Riemannian, Finsler, etc.) 58A14 Hodge theory in global analysis 35N15 $$\overline\partial$$-Neumann problems and formal complexes in context of PDEs 55N20 Generalized (extraordinary) homology and cohomology theories in algebraic topology 35C20 Asymptotic expansions of solutions to PDEs 58J20 Index theory and related fixed-point theorems on manifolds
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