Regular multi-types and the Bloom conjecture

Abstract

We prove equality of the vector field (iterated commutator) type and the regular contact type, which together with the Bloom theorem on equality of the Levi-form type and the regular contact type provides a complete solution of a long standing open problem of Bloom in the case of complex dimension three. For general dimensions, we verify the Bloom conjecture when $s=n-2$, which provides the first positive result in the pseudoconvexity sensitive case for a real hypersurface in ${\mathbb{C}}^n$ after his important work in 1981.

36 pages

References in corpus (2)

• Regular versus singular order of contact on pseudoconvex hypersurfaces
• Sums of squares in pseudoconvex hypersurfaces and torsion phenomena for Catlin's boundary systems