Rank-two Milnor idempotents for the multipullback quantum complex projective plane

Carla Farsi, Piotr M. Hajac, Tomasz Maszczyk +1

The $K_0$-group of the C*-algebra of multipullback quantum complex projective plane is known to be ${\mathbb{Z}}^3$, with one generator given by the C*-algebra itself, one given by t…