Existence of a dfg subgroup with definable, definably compact quotient over C((t))
Ascertain, up to finite index (in the virtual sense), whether for every group G definable in C((t)) there exists a definable subgroup H ≤ G with a definably f-generic (dfg) type such that the quotient G/H is definable in the language of valued rings (not merely interpretable) and is definably compact.
References
Conjecture 4.5. Let G be a group defined in C((t)). Consider everything in virtual sense. Then there is H, a C((t))-definable dfg subgroup of G, such that G/H is definable (not only interpretable) and definably compact.
— A short note on model theory of C((t))
(2501.12545 - Zhang, 21 Jan 2025) in Conjecture 4.5, Section 4 (More results)