Solution: Define a as a map ( | \cdot | : X \to \mathbbR_+ ) satisfying standard Banach space axioms, but with scalar multiplication by bicomplex numbers respecting:
Every bicomplex number has a unique :
The bicomplex spectrum of ( T ) is: [ \sigma_\mathbbBC(T) = \lambda \in \mathbbBC : \lambda I - T \text is not invertible . ] In idempotent form: [ \sigma_\mathbbBC(T) = \sigma_\mathbbC(T_1) \mathbfe 1 + \sigma \mathbbC(T_2) \mathbfe_2 ] where the sum is in the sense of idempotent decomposition: ( \alpha \mathbfe_1 + \beta \mathbfe_2 : \alpha \in \sigma(T_1), \beta \in \sigma(T_2) ). Basics of Functional Analysis with Bicomplex Sc...