derivations 1differential algebra 1exponential map 1formal power series 1holonomic series 1smooth germs 1
From the 1 of 2 linked papers with an AI index.
2 papers
math.AC2026
When does a derivation of a ring admit the exponential?
Genrich Belitskii, Alberto F. Boix, Dmitry Kerner
The paper investigates when the exponential of an x‑adically nilpotent derivation defines a formal automorphism that preserves various subrings of formal power series, providing cr…
cs.IT2024
MacWilliams duality for rank metric codes over finite chain rings
Iván Blanco-Chacón, Alberto F. Boix, Marcus Greferath +1
We extend Ravagnani's MacWilliams duality theory to the settings of rank metric codes over finite chain rings, relating the sequences of -binomial moments of a rank metric code…