Remarks on k-Leviflat Complex Manifolds
Canadian journal of mathematics, Tome 31 (1979) no. 4, pp. 881-889

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In the theory of functions of several complex variables one is naturally led to study non-compact complex manifolds which have certain types of exhaustions. For example, on a Stein manifold X there is a strictly plurisubharmonic function φ: X → R+ so that the pseudoballs Bc = {φ < c } exhaust X. Conversely, a manifold which has such an exhaustion is Stein. The purpose of this note is to study a class of manifolds which have exhaustions along the lines of those on holomorphically convex manifolds, namely the k-Leviflat complex manifolds. Unlike the Stein case, the Levi form may have positive dimensional 0-eigenspaces. In the holomorphically convex case these are tangent to the generic fiber of the Remmert reduction.
Gilligan, B.; Huckleberry, A. Remarks on k-Leviflat Complex Manifolds. Canadian journal of mathematics, Tome 31 (1979) no. 4, pp. 881-889. doi: 10.4153/CJM-1979-083-1
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