Isolation from Side in 2-Computably Enumerable Degrees structures, in particular, in the 2-computably
enumerable wtt-degrees and in low Turing degrees. Intuitively
Strong noncuppability in low computably enumerable degreesWe prove the existence of noncomputable low computably
enumerable degrees b < a such that b
Enumeration degrees and enumerability of familesWe study the
enumerability of families relative to the
enumeration degrees. It is shown that if a
Computable Embeddings of Classes of Structures Under Enumeration and Turing Operators characterizations of the Turing and
enumeration computable embeddings of classes of structures.
On the doubly connected domination polynomial of a graph© 2019 World Scientific Publishing Company Let (Formula presented.) be a simple
graph. A set
Almost computably enumerable families of setsAn almost computably
enumerable family that is not Ø′- computably
enumerable is constructed
Embeddings of *-graphs into 2-surfacesThis paper considers *-
graphs in which all vertices have degree 4 or 6, and studies the question
Some results on prime labelings of graphsThe purpose of this paper is to give some new families of
graphs that have a prime labeling
Some results on prime labelings of graphsThe purpose of this paper is to give some new families of
graphs that have a prime labeling