Giulia Sarfatti (U. of Firenze): Shift invariant subspaces of the quaternionic space of slice L^2 functions

I will give a characterization for invariant subspaces for the shift operator in a quaternionic variable; providing a different proof for the quaternionic Beurling Theorem and an inner-outer factorization for functions in the quaternionic Hardy space. Work with A. Monguzzi.