Talk by Dr. Raúl Queiroz do Vale de Noronha Pen (Penaguião)
Date: 18.10.16 Time: 11.15 - 12.00 Room: Y27H28
The chromatic symmetric function of a graph is a chromatic invariant that generalizes the chromatic polynomial and takes values in the ring of symmetric functions. This invariant has a lot of interesting open problems.