Dice Question Streamline Icon: https://streamlinehq.com

Does uniform inverse boundedness imply c-goodness?

Determine whether every uniformly continuous inversely bounded mapping T : Dp(X) -> Dp(Y), where Dp(X) denotes either Cp(X) or C*(X) endowed with the topology of pointwise convergence, is c-good for some constant c > 0.

Information Square Streamline Icon: https://streamlinehq.com

Background

The authors show that if T : Dp(X) -> Dp(Y) is a uniformly continuous inversely bounded surjection between function spaces over metrizable spaces, then several dimensional-like properties (including zero-dimensionality and strong countable-dimensionality) transfer from X to Y. Earlier results established such transfers under the stronger c-good condition.

It remains unknown whether inverse boundedness alone implies c-goodness. Resolving this would unify the conditions under which these preservation results hold and clarify the relationship between these two map regularity notions.

References

However, we don't know whether every uniformly continuous inversely bounded map is c-good for some c > 0.

On uniformly continuous surjections between $C_p$-spaces over metrizable spaces (2408.01870 - Eysen et al., 3 Aug 2024) in After Corollary 1.4, Introduction (Section 1)