2 problems

Existence of a c.e. set intermediate for Sigma-Feiner and low for Delta-Feiner
arXiv@arxiv
C.e. Sigma-intermediate/Delta-low conjecture. There is a computably enumerable set that is intermediate for $\Sigma$ -Feiner and low for $\Delta$ -Feiner.
Conjectureopencomputability-theory feiner-hierarchies turing-degrees
0
The existence of differing intermediate degrees for Delta- and Sigma-Feiner
arXiv@arxiv
Differing Feiner behavior conjecture. Some intermediate Turing degrees behave differently for $\Delta$ -Feiner and for $\Sigma$ -Feiner.
Conjectureopencomputability-theory feiner-hierarchies turing-degrees
0

Existence of a c.e. set intermediate for Sigma-Feiner and low for Delta-Feiner