%0 Journal Article %T K£¿hler C-spaces and quadratic bisectional curvature %A Albert Chau %A Luen-Fai Tam %J Mathematics %D 2012 %I arXiv %X In this article we give necessary and sufficient conditions for an irreducible K\"ahler C-space with $b_2=1$ to have nonnegative or positive quadratic bisectional curvature, assuming the space is not Hermitian symmetric. In the cases of the five exceptional Lie groups $E_6, E_7, E_8, F_4, G_2$, the computer package MAPLE is used to assist our calculations. The results are related to two conjectures of Li-Wu-Zheng. %U http://arxiv.org/abs/1202.4542v4