# Abstract Michele Pernice

**Michele Pernice** will speak on

** Results about the Chow ring of moduli of stable curves of genus
three **

**Abstract:** In this talk, we will discuss some results concerning the Chow

ring of Mbar_3, the moduli stack of stable curves of genus three. In

particular, we will describe the main new idea, which consists of

enlarging the moduli stack of stable curves by adding curves with worse

singularities, like cusps and tacnodes. This will make the geometry of

the stack uglier but in turn its Chow ring will be easier to compute.

The Chow ring of Mbar_3 can then be recovered by excising the locus of

non-stable curves.