Efimov (1965): Is there a zero-dimensional homogeneous dyadic space of weight $\kappa$ that is not homeomorphic to $2^\kappa$?

Pashenkov (1974): Yes, if $\kappa=2^\mu$ for some uncountable $\mu$.

Shapiro (1993) and Bell (1994): No, if $\kappa=\aleph_1$.

So the answer to the question in the title is *Yes* when $\mathfrak{c}=\aleph_1$ and it is *No* when $\mathfrak{c}=2^{\aleph_1}$. Then the real question (perhaps still open) is:

> Suppose that $\aleph_1 < \mathfrak{c}
> < 2^{\aleph_1}$. Is there a
> zero-dimensional homogeneous dyadic
> space of weight $\mathfrak{c}$ that is
> not homeomorphic to $2^\mathfrak{c}$?

Maybe it is more reasonable to replace $\mathfrak{c}$ by $\aleph_2$ in this question. I would also like to know what happens in general with a $\kappa > \aleph_1$ which is not a power of $2$.

**Definitions:** 

*Space* = Hausdorff topological space.

$X$ is *homogeneous* if for all $x,y \in X$ there is an autohomeomorphism of $X$ sending $x$ to $y$.

A space is *dyadic* if it is the continuous image of some Cantor cube $2^\kappa $.

A space is *zero-dimensional* if it has a base of clopen subsets.

The *weight* of a space is the least size of a base for its topology.