3 papers
math.LO2025
On first order amenability
Ehud Hrushovski, Krzysztof KrupiÅski, Anand Pillay
We introduce the notion of first order amenability, as a property of a first order theory : every complete type over , in possibly infinitely many variables, extends…
math.LO2025
Compactifications of pseudofinite and pseudo-amenable groups
Gabriel Conant, Ehud Hrushovski, Anand Pillay
We first give simplified and corrected accounts of some results in \cite{PiRCP} on compactifications of pseudofinite groups. For instance, we use a classical theorem of Turing \cit…
eess.SY2025
Identifiable specializations for ODE models
Alexey Ovchinnikov, Anand Pillay, Gleb Pogudin +1
The parameter identifiability problem for a dynamical system is to determine whether the parameters of the system can be found from data for the outputs of the system. Verifying wh…