A. Iarrobino

collaborators

3 papers

math.AC2025

Jordan degree type for codimension three Gorenstein algebras of small Sperner number

Nancy Abdallah, Nasrin Altafi, Anthony Iarrobino +1

The Jordan type $P_{A, ℓ}$ of a linear form $ℓ$ acting on a graded Artinian algebra $A$ over a field $k$ is the partition describing the Jordan block decomposition of the…

math.AC2025

Jordan Type stratification of spaces of commuting nilpotent matrices

Mats Boij, Anthony Iarrobino, Leila Khatami

An $n \times n$ nilpotent matrix $B$ is determined up to conjugacy by a partition $P_{B}$ of $n$ , its Jordan type given by the sizes of its Jordan blocks. The Jordan type $\mathfrak D…

math.AC2024

Identifying Partitions with maximum commuting orbit $Q = (u, u - r)$

Mats Boij, Anthony Iarrobino, Leila Khatami

The authors here show that the partition $P_{k, l} (Q)$ in the table $T (Q)$ of partitions having maximal nilpotent commutator a given stable partition $Q$ , defined in [IKVZ2…

Jordan degree type for codimension three Gorenstein algebras of small Sperner number

Jordan Type stratification of spaces of commuting nilpotent matrices

Identifying Partitions with maximum commuting orbit Q=(u,u−r)

Identifying Partitions with maximum commuting orbit $Q = (u, u - r)$