A NOTE ON NONNEGATIVE QUADRATIC ORTHOGONAL BISECTIONAL CURVATURE

作者:Niu, Yanyan*
来源:PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 2014, 142(11): 3975-3979.
DOI:10.1090/S0002-9939-2014-12251-9

摘要

In this note, we give a new proof of the nonnegativity of the scalar curvature under the condition of the nonnegative quadratic orthogonal bisectional curvature.