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math.AG2022
Motivic Vitushkin invariants
Georges Comte, Immanuel Halupczok
We prove the nonarchimedean counterpart of a real inequality involving the metric entropy and measure geometric invariants , called Vitushkin's variations. Our inequality is b…
math.AG2022
Riso-stratifications and a tree invariant
David Bradley-Williams, Immanuel Halupczok
We introduce a new notion of stratification (``riso-stratification''), which is canonical and which exists in a variety of settings, including different topological fields like $\m…