A class of noncommutative projective surfaces
A class of noncommutative projective surfaces
Let A = ⊕i⩾0Ai be a connected graded, noetherian k-algebra that is generated in degree one over an algebraically closed field k. Suppose that the graded quotient ring Q(A) has the form Q(A) = k(X)[t, t−1; σ], where σ is an automorphism of the integral projective surface X. Then we …