2 problems

Physical-subspace constraint conjecture. The physical subspace $\mathcal{M}\subset\mathcal{M}^\star$ is the space subject to

Let $E_{11}(\mathbb{Z})$ be the integral Kac--Moody group associated with $E_{11}$. Let the brane charge lattice of Type II superstring theory be the lattice of quantized brane cha…