We consider generators of a monoid consisting of effective divisor classes in Neron-Severi group for each isomorphism class of a projective plane bundle over an elliptic curve. Furthermore, we investigate the structure of the effective divisors which are algebraically equivalent to integral multiples of the generators of the monoid.
"Effective divisor classes of a projective plane bundle over an elliptic curve." Rocky Mountain J. Math. 49 (5) 1679 - 1708, 2019. https://doi.org/10.1216/RMJ-2019-49-5-1679