Definable topological amenability conjecture with a definable neighborhood basis

Let GG be a topological group definable in a structure MM, and suppose that the members of a basis of open neighborhoods of the identity element ee are definable.

Definable topological amenability conjecture. If GG is definably topologically amenable, then

Gdef,top00=Gdef,top000.{G^*}^{00}_{\operatorname{def},\operatorname{top}}={G^*}^{000}_{\operatorname{def},\operatorname{top}}.

This is stated as a restriction of the generalized conjecture and still extends the preceding definable and topological conjectures. The supplied text does not state a resolution of this restricted claim.

Sources & referencesView supporting material

Primary source

Krzysztof Krupinski and Anand Pillay, “Amenability, definable groups, and automorphism groups”, arXiv:1612.07560 (2019).

Additional references

2 papers in this index state this conjecture (2007–2016). The statement above is taken from the most recent of them; the others are arXiv:0706.0486.

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