Complex projective threefolds with non-negative canonical Euler-Poincare characteristic

Meng Chen, Kang Zuo

Let $V$ be a complex nonsingular projective 3-fold of general type with $\chi ({\omega }_V)\ge 0$ (resp. $>0$). We prove that the m-canonical map ${\Phi }_{|m{K}_V|}$ is birational onto its image for…