On pairs of recursively enumerable degrees. Anti-mitotic recursively enumerable degrees. Cupping and noncapping in the r.e. Sublattices of the polynomial time degrees. An inhomogeneity in the structure of Karp degrees.
Lattice embeddings into the recursively enumerable degrees.
A note on complete problems for complexity classes. Degree theoretic splitting properties of recursively enumerable sets. On the relative complexity of hard problems for complexity classes without complete problems. The recursively enumerable degrees have infinitely many one types. Cappable recursively enumerable degrees and Post's program.