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Mar 2, 2022 at 20:39 comment added Mohan Ramachandran Any simply connected complete Kahler manifold with negative sectional curvature has negative holomorphic sectional curvature ,and is a Stein manifold . Any complex submanifold of it has negative holomorphic sectional curvature .
Feb 26, 2022 at 13:19 history edited YCor CC BY-SA 4.0
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Feb 26, 2022 at 12:59 comment added LeechLattice Does the title imply that $X$ should be non-compact?
Feb 26, 2022 at 1:20 comment added Jason Starr More counterexamples arise from the complex hyperbolic spaces: maths.dur.ac.uk/users/j.r.parker/img/NCHG.pdf
Feb 25, 2022 at 23:37 comment added Jason Starr What about the open unit disk with its hyperbolic metric?
Feb 25, 2022 at 20:14 comment added Igor Belegradek I don't know much about complex submanifolds but e.g. suppose $X$ is a complex hyperbolic manifold with infinite cyclic fundamental group. Thus the universal cover of $X$ is the complex hyperbolic space. Does $X$ contain a compact complex submanifold (of positive dimension)?
Feb 25, 2022 at 19:43 history asked AmorFati CC BY-SA 4.0