On the cone of effective cycles on the symmetric products of curves
Flippo Viviani (Rome)  Seminar Algebraic Geometry (SAG)
What 


When 
Jul 12, 2018 from 10:30 am to 11:30 am 
Where  Bonn, HĂ¶rsaal MPI, Vivatsgasse 7 
Contact Name  Sachinidis 
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I will report on a joint work with F. Bastianelli, A. Kouvidakis and A. F. Lopez in which we study the cone of (pseudo)effective cycles on symmetric products of a curve.
We first prove that the diagonal cycles span a face of the pseudoeffective cone of cycles in any given dimension. Secondly, we look at the contractibility faces associated to the AbelJacobi morphism towards the Jacobian and in many cases we are able to compute
their dimensions.