2 problems

Classification conjecture. Every algebra of Jordan type is either a Jordan algebra, a Matsuo algebra, or a factor of a Matsuo algebra.

Let $V$ be a simple VOA satisfying the paper's Conditions 1, let $E_V$ be the set of Ising vectors of $V$ of $\sigma$-type, and let $G_V=\langle \sigma_e\mid e\in E_V\rangle$. The…