Yang's Hermitian generalization for exterior powers of the tangent bundle
Yang's Hermitian generalization for exterior powers of the tangent bundle
Let be a compact complex manifold of complex dimension , and suppose that has a Hermitian metric with positive holomorphic sectional curvature. A Hermitian vector bundle is RC-positive if it admits a smooth metric with the RC-positivity property.
Yang's conjecture. For every integer with , the bundle admits a smooth RC-positive metric. In particular, if is Kähler, then is a projective and rationally connected manifold.
The paper's theorem establishes vanishing results and partially confirms this conjecture under the stronger assumption of positive real bisectional curvature. The conjecture remains unresolved in the stated general Hermitian setting.
Sources & referencesView supporting material
Primary source
Kai Tang, “Positive curvature operator, projective manifold and rational connectedness”, arXiv:1905.04894 (2019).
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