(1) Department of Mathematics, University of Rome~2 'Tor Vergata, 00133 Rome, Italy;(2) Department of Mathematics, University of Crete, 71409 Heraklion-Crete, Greece
Abstract:
We study the problem of describing the cone of the effective divisors in the second symmetric product of a curve with general moduli using a degeneration to a rational g-nodal curve.