On Hastings' approach to Lin's Theorem for Almost Commuting Matrices

David Herrera

Lin's theorem states that for all $\epsilon >0$, there is a $\delta >0$ such that for all $n\ge 1$ if self-adjoint contractions $A,B\in M_n(\mathbb{C})$ satisfy $\Vert [A,B]\Vert <\delta$ then there ar…