3 papers
math.LO2026
Parameterized D-torsors in differential Galois theory
Omar León Sánchez, David Meretzky
In the context of differential fields of characteristic zero with several commuting derivations, we discuss the notion of -differential equations on parameterized D-torsors and…
math.LO2026
Galois theory, automorphism groups of prime models, and the Picard-Vessiot closure
David Meretzky, Anand Pillay
We work in the context of a complete totally transcendental theory . We consider the prime model over a set . For intermediate sets with $A\subseteq B \s…
math.LO2021
More on Galois cohomology, definability and differential algebraic groups
Omar Leon Sanchez, David Meretzky, Anand Pillay
We make further observations on the features of Galois cohomology in the general model theoretic context. We make explicit the connection between forms of definable groups and firs…