tailieunhanh - q-subharmonicity and q-convex domains in Cn

In this paper we study q-subharmonic and q-plurisubharmonic functions in Cn. Next as an application, we give the notion of q-convex domains in Cn which is an extension of weakly q-convex domains introduced and investigated in [10]. In the end of the paper we show that the q-convexity is the local property and give some examples about q-convex domains |