The minimal volume of log canonical surfaces of general type with positive geometric genus
摘要
We determine the minimal possible volume of a projective log canonical surface of general type with prescribed positive geometric genus. As applications, we provide effecitive Noether type inequalities for log canonical threefolds and stable surfaces. Also, we obtain a uniform bound on the order of the symplectic automorphism group Auts(S) of smooth projective surfaces S of general type.