Markovian semigroup from mixing noninvertible dynamical maps

We analyze the convex combinations of noninvertible generalized Pauli dynamical maps. By manipulating mixing parameters, one can produce a channel with shifted singularities, additional or even no singularities whatsoever. In particular, we show how to use maps Markovian semigroup. Interestingly, whose results in semigroup are generated by time-local generators and time-homogeneous memory kernels that not regular; is, their formulas contain infinities. Finally, change after corresponding