3 papers
math.AG2026
Unrestrictions and concise secant varieties
Jakub Jagiełła, Joachim Jelisiejew
We introduce the concise secant varieties, which are, informally speaking, modular partial desingularisations of secant varieties to Segre embeddings. More precisely, they are proj…
math.AG2025
Characteristic numbers of algebras
Jakub Jagiełła, Paweł Pielasa, Anatoli Shatsila
We introduce characteristic numbers of a finite commutative unital -algebra, which are numerical invariants arising from algebraic intersection theory. We characterize…
math.AG2024
Classification and degenerations of small minimal border rank tensors via modules
Jakub Jagiełła, Joachim Jelisiejew
We give a self-contained classification of -generic minimal border rank tensors in for . Together with previ…