Cordes characterization for pseudodifferential operators with symbols valued on a noncommutative C*-algebra

Severino T. Melo, Marcela I. Merklen

Given a separable unital C*-algebra A, let E denote the Banach-space completion of the A-valued Schwartz space on Rn with norm induced by the A-valued inner product $<f,g>=\int f(x…