Abstract
We develop the Ershov theory of C-classes for some finite families of sets in the Ershov hierarchy. We generalize the result by Muchnik on multiple $ m $ -reducibility as follows: There exists an $ m $ -universal pair of disjoint sets for each level of the Ershov hierarchy.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have