Equals Pcc if defined in terms of total functions; is not contained in ⊕Pcc if defined in terms of partial functions [GPW16b].
Is not contained in UPPcc [For02].
Does not contain ZPPcc if partial functions are allowed [GPW16b].
The complexity measure associated with ⊕Pcc is equivalent to the log of the rank of the communication matrix over GF(2).