Let X be a smooth projective curve of genus g >= 2 over an algebraically closed field k of characteristic p > 0. We show that for any integers r and d with 0 < r < p, there exists a maximally Frobenius destabilised stable vector bundle of rank r and degree d on X if and only if r vertical bar d.
机构:
Dipartimento di Matematica, Università di Trento, 14 - 38100 Povo (TN), Via SommariveDipartimento di Matematica, Università di Trento, 14 - 38100 Povo (TN), Via Sommarive