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math.LO2025

A two-sorted theory of nilpotent Lie algebras

Christian d'Elbée, Isabel Müller, Nicholas Ramsey +1

We prove the existence of a model companion of the two-sorted theory of -nilpotent Lie algebras over a field satisfying a given theory of fields. We describe a language in which…

math.LO2025

Axiomatic Theory of Independence Relations in Model Theory

Christian d'Elbée

This course introduces the fruitful links between model theory and a combinatoric of sets given by independence relations. An independence relation on a set is a ternary relation b…

math.LO2025

Generic multiplicative endomorphism of a field

Christian d'Elbée

We introduce the model-companion of the theory of fields expanded by a unary function for a multiplicative map, which we call ACFH. Among others, we prove that this theory is NSOP$…

math.LO2024

Wilson conjecture for omega-categorical Lie algebras, the case 3-Engel characteristic 5

Christian d'Elbée

We prove a version of the Wilson conjecture for -categorical -Engel Lie algebras over a field of characteristic : every -categorical Lie algebra over w…

math.LO2024

Model-theoretic properties of nilpotent groups and Lie algebras

Christian d'Elbée, Isabel Müller, Nicholas Ramsey +1

We give a systematic study of the model theory of generic nilpotent groups and Lie algebras. We show that the Fraïssé limit of 2-nilpotent groups of exponent studied by Baudi…

math.LO2024

The classification of dp-minimal integral domains

Christian d'Elbée, Yatir Halevi, Will Johnson

We classify dp-minimal integral domains, building off the existing classification of dp-minimal fields and dp-minimal valuation rings. We show that if R is a dp-minimal integral do…