4 papers
Koszul complexes and derived intersections
Tristan Bozec, Julien Grivaux
The aim of this article is to provide a complementary understanding to some results of the second author using the machinery of Koszul complexes, and to explain how this approach c…
Duality, polarity and convolution in umbral calculus
Julien Grivaux
In this paper, we revisit foundations of umbral calculus using a straightforward approach based on an explicit matrix realization of binomial convolution. We construct an umbral du…
Derived intersections and free dg-Lie algebroids
Julien Grivaux
We study free dg-Lie algebroids over arbitrary derived schemes, and compute their universal enveloping and jet algebras. We also introduce derived twisted connections, and relate t…
Formal moduli problems and formal derived stacks
Damien Calaque, Julien Grivaux
This paper presents a survey on formal moduli problems. It starts with an introduction to pointed formal moduli problems and a sketch of proof of a Theorem (independently proven by…