activity
20052026
most citedThe freeness of ideal subarrangements of Weyl arrangements

47 citations · 270 across the 59 of their papers we have counts for

collaborators

63 papers

math.CO2026

Vector fields of graphic arrangements and face rings of simplicial posets

Takuro Abe, Satoshi Murai

A graphic arrangement $\A_G$ associated with a simple graph is a classical and well-studied object in the theory of hyperplane arrangements. In this note, we show that, for a c…

math.CO2026

Residue ideals of hyperplane arrangements

Takuro Abe, Satoshi Murai

In this paper, we introduce a new idea to study modules of logarithmic differential forms of hyperplane arrangements, which we call residue ideals. We first establish basic propert…

math.AG2026

On the projective dimension of some deformations of Weyl arrangements

Takuro Abe, Daniele Faenzi

We show that the logarithmic derivation module of (the cone of) the deformation A of a Weyl arrangement associated with a root system of simply laced type has projective dimension…

math.CO2025

On Universal derivations for multiarrangements

Takuro Abe, Shota Maehara, Gerhard Roehrle +1

The study of universal derivations for arbitrary multiarrangements and multiplicity functions was initiated by Abe, Röhrle, Stump, and Yoshinaga in 2024 which focused on arrangemen…

math.AG2025

Solomon-Terao polynomials and Castelnouvo-Mumford regularity of hyperplane arrangements

Takuro Abe

The Solomon-Terao bi-polynomial was introduced by Solomon and Terao which degenerates to the characteristic polynomial of hyperplane arrangements. Also, it was proved recently that…

math.CO2025

Addition theorems for Ziegler pairs of hyperplane arrangements

Takuro Abe, Lukas Kühne, Piotr Pokora

Inspired by Terao's freeness conjecture, we examine Ziegler pairs, which are pairs of hyperplane arrangements that share the same underlying matroid but have different modules of l…