3 papers
math.AG2000
Families of maximal subbundles of stable vector bundles on curves
E. Ballico, B. Russo
Let X be a smooth projective curve of genus g bigger then 2. For any vector bundle E on X let M_k(E) be the scheme of all rank k subbundles of E with maximal degree. For every inte…
math.AG1998
Exact sequence of semistable vector bundles on algebraic curves
E. Ballico, B. Russo
Let X be a smooth complex projective curve of genus g bigger or equal to 1. If g is bigger than 1 assume further that X is either bielliptic or with general moduli. Under a natural…
alg-geom1997
On a conjecture of Lange
B. Russo, M. Teixidor i Bigas
Let C be a projective smooth curve of genus g> 1. Let E be a vector bundle of rank r on C. For each integer r'<r, associate to E the invariant s_{r'}(E)=r'deg(E)-rdeg(E') where E'i…