Separation between strong relativization at Baire space and at Cantor space

Determine whether there exist reals that strongly relativize \(\Delta^0_1\) at Baire space \(N\) but fail to strongly relativize \(\Delta^0_1\) at Cantor space \(2^N\).

Background

The paper constructs a real fNf\in N that strongly relativizes Δ10\Delta^0_1 at NN while a Turing-equivalent real A2NA\in 2^N does not strongly relativize Δ10\Delta^0_1 at NN, and indeed not even at NN. The subsequent question asks whether a different kind of separation—between the two parameter or target spaces themselves—can occur for the same real.

References

Are there reals which strongly relativize $\Delta0_1$ at $N$ but do not strongly relativize $\Delta0_1$ at $N$?

Strongly relativizing reals  (2608.14488 - Arant, 14 Aug 2026) in Section 3, immediately following Theorem \ref{thm:turingnopreserve}