On Chow Rings of Quiver Moduli

We describe the point class and Todd class in the Chow ring of a moduli space of quiver representations, building on a result of Ellingsrud-Stromme. This, together with the presentation of the Chow ring by the second author, makes it possible to compute integrals on quiver moduli. To do so, we construct a canonical morphism of universal representations in great generality, and along the way point out its relation to the Kodaira-Spencer morphism. We illustrate the results by computing some invariants of some "small" Kronecker moduli spaces. We also prove that the first non-trivial (6-dimensional) Kronecker moduli space is isomorphic to the zero locus of a general section of $\mathcal{Q}<^>{\vee }(1)$ on $\textrm{Gr}(2,8)$.