Projections and minimal invariant subspaces in the Hardy space over the bidisk

Marcos dos Santos Ferreira, João Marcos Ribeiro do Carmo

We study the rigidity of the orthogonal projections $P_n:H^2({\mathbb{D}}^2)\to H_n$, where $H^2({\mathbb{D}}^2)={⨁}_{n=0}^{\infty }{H}_n$ and each $H_{n}=H^{2}(z)…