The Operator Valued Autoregressive Filter Problem and the Suboptimal Nehari Problem in Two Variables

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/73708Necessary and sufficient conditions are given for the solvability of the operator valued two-variable autoregressive filter problem. In addition, in the two variable suboptimal Nehari problem sufficient conditions are given for when a strictly contractive little Hankel has a strictly contractive symbol.18 pagesFunctional Analysis42B05, 47A57, 47B35The Operator Valued Autoregressive Filter Problem and the Suboptimal Nehari Problem in Two Variablestext