Badness and non-stationarity for dfg groups
Let be a group definable in an -minimal structure or a -adically closed field, and assume that is a group. Say that is bad when it has the badness property defined in the paper, namely the relevant strongly -generic behavior fails as specified there. Badness conjecture. The group is bad if and only if is non-stationary. The paper has established badness for the displayed examples of the additive square and the Borel subgroup, while the equivalence for arbitrary groups in the stated classes remains open.
References
Primary source
Ningyuan Yao and Zhentao Zhang, “On minimal flows and definable amenability in some distal NIP theories”, arXiv:2209.08495 (2023).
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