activity
20062026
most citedA blowup algebra of hyperplane arrangements

24 citations · 68 across the 29 of their papers we have counts for

collaborators

35 papers

math.AC2026

Associated primes, witnesses, and omega invariants of monomial ideals

Jacob Miller, Mehrdad Nasernejad, Ştefan O. Tohǎneanu

We introduce and study the omega invariant of a proper ideal in a Noetherian commutative ring, defined as the number of associated primes of the ideal. Our main objective is to inv…

math.AC2025

Betti numbers of fold products of linear forms

Ricardo Burity, Stefan Tohaneanu

The ideals generated by fold products of linear forms are generalizations of powers of defining ideals of star configurations, or of Veronese type ideals, and in this paper we stud…

math.AC2024

Rose-Terao-Yuzvinsky theorem for reduced forms

Ricardo Burity, Zaqueu Ramos, Aron Simis +1

Yuzvinsky and Rose-Terao have shown that the homological dimension of the gradient ideal of the defining polynomial of a generic hyperplane arrangement is maximum possible. In this…

cs.IT2023

Generalized Hamming weights and minimal shifts of Orlik-Terao algebras

Stefan O. Tohaneanu

In this note we show that the minimum distance of a linear code equals one plus the smallest shift in the first step of the minimal graded free resolution of the Orlik-Terao algebr…

math.AC2021

On the Jacobian ideal of central arrangements

Ricardo Burity, Aron Simis, Stefan Tohaneanu

Let denote a central hyperplane arrangement of rank in affine space over an infinite field and let $l_1,\ldots, l_m\in R:= \mathbb K[x…

math.CO2020

Logarithmic derivations associated to line arrangements

Ricardo Burity, Stefan Tohaneanu

In this paper we give full classification of rank 3 line arrangements in (over a field of characteristic 0) that have a minimal logarithmic derivation of degree 3. Th…