5 problems

Let $M$ be a Calabi–Yau threefold, let $H^*(M)$ denote its cohomology, and let $W^+(M)$ be the algebra generated by $T_n(\lambda)$ for $n{\geqslant} 0$ and $\lambda\in H^*(M)$, sub…

Let $X$ be a quasiprojective $3$-Calabi–Yau variety. Let $\operatorname{W}^+(X)$ be the algebra generated by symbols $T_m^+(\lambda)$, with $m\in\mathbb{N}$ and…

Let $Q$ be a symmetric quiver with potential $\mathsf{W}$. Let $\mathfrak{g}_{Q,\mathsf{W}}$ be the Lie superalgebra defined from the classical $R$-matrix, and write … The positive…

Let $Q$ be the three-loop quiver obtained from $Q_r$ by removing the framing vertex and all arrows containing it. For framing vector $\mathbf f=1$ and stability parameter…

Let $\Sigma_g$ be a genus-$g$ surface, let $\mathcal{H}^{\operatorname{\mathfrak{P}}}_{Q_{\Sigma_g},W_{\Sigma_g}}$ be the associated CoHA, and let…