Poisson algebras via model theory and differential-algebraic geometry

J Bell, S Launois, OL Sánchez, R Moosa - Journal of the European …, 2017 - ems.press
Brown and Gordon asked whether the Poisson Dixmier–Moeglin equivalence holds for any
complex affine Poisson algebra, that is, whether the sets of Poisson rational ideals, Poisson …

Interpolative fusions II: Preservation results

A Kruckman, MC Tran, E Walsberg - arXiv preprint arXiv:2201.03534, 2022 - arxiv.org
We study interpolative fusion, a method of combining theories $ T_1 $ and $ T_2 $ in distinct
languages in a" generic" way over a common reduct $ T_\cap $, to obtain a theory …

Generic derivations on algebraically bounded structures

A Fornasiero, G Terzo - The Journal of Symbolic Logic, 2024 - cambridge.org
GENERIC DERIVATIONS ON ALGEBRAICALLY BOUNDED STRUCTURES T : the expansion
of T saying that the i are derivations which commute w Page 1 The Journal of Symbolic Logic …

On the equations of Poizat and Liénard

J Freitag, R Jaoui, D Marker… - International Mathematics …, 2023 - academic.oup.com
We study the structure of the solution sets in universal differential fields of certain differential
equations of order two, the Poizat equations, which are particular cases of Liénard …

Interpolative fusions

A Kruckman, CM Tran, E Walsberg - Journal of Mathematical Logic, 2021 - World Scientific
We define the interpolative fusion T∪∗ of a family (T i) i∈ I of first-order theories over a
common reduct T∩, a notion that generalizes many examples of random or generic …

Finiteness theorems on hypersurfaces in partial differential-algebraic geometry

J Freitag, R Moosa - Advances in Mathematics, 2017 - Elsevier
Hrushovski's generalization and application of Jouanolou (1978)[9] is here refined and
extended to the partial differential setting with possibly nonconstant coefficient fields. In …

PAC structures as invariants of finite group actions

DM Hoffmann, P Kowalski - The Journal of Symbolic Logic, 2023 - cambridge.org
We study model theory of actions of finite groups on substructures of a stable structure. We
give an abstract description of existentially closed actions as above in terms of invariants …

Generic derivations on algebraically bounded structures

F Antongiulio, T Giuseppina - arXiv preprint arXiv:2310.20511, 2023 - arxiv.org
Let K be an algebraically bounded structure. If K is model complete, then the theory of K
endowed with a derivation has a model completion. Similar results hold for several …

[HTML][HTML] On the Dixmier–Moeglin equivalence for Poisson–Hopf algebras

S Launois, OL Sanchez - Advances in Mathematics, 2019 - Elsevier
We prove that the Poisson version of the Dixmier–Moeglin equivalence holds for
cocommutative affine Poisson–Hopf algebras. This is a first step towards understanding the …

Existentially closed fields with finite group actions

DM Hoffmann, P Kowalski - Journal of Mathematical Logic, 2018 - World Scientific
We study algebraic and model-theoretic properties of existentially closed fields with an
action of a fixed finite group. Such fields turn out to be pseudo-algebraically closed in a …