2 problems

Let $Q$ be a quiver without loops, let $\mathcal{M}=\mathcal{M}_{Q,\theta}(\mathsf{v},\mathsf{w})$ be a zero-dimensional quiver variety with $\theta=(1,1,\ldots,1)$, and let…

Vertex-function character formula. The vertex functions of $X$ with vanishing equivariant parameters are given by the Taylor series expansions of