Weikang Weng

collaborators

6 papers

math.RT2026

Ideal quotients of $n$ -exact categories

Weikang Weng

In this paper, we extend the notion of a removable subcategory to $n$ -exact categories, and prove that an ideal quotient by a subcategory of projective-injectives inherits an $n$ -e…

math.RT2026

On the representation type of higher preprojective algebras of type $A$

Weikang Weng

In this paper, we establish a finite--tame--wild trichotomy for the representation type of $(n + 1)$ -preprojective algebras of type $A_{m}$ . We also provide a complete classification o…

math.RT2025

A recollement approach to Brieskorn-Pham singularities

Weikang Weng

In this paper, we construct recollements and ladders for Brieskorn-Pham singularities via reduction/insertion functors, and study the singularity categories of the Brieskorn-Pham s…

math.RT2025

ACM tilting bundles on a Geigle-Lenzing projective plane of type $(2, 2, 2, p)$

Jianmin Chen, Shiquan Ruan, Weikang Weng

Let $X$ be a Geigle-Lenzing projective plane of type $(2, 2, 2, p)$ and $coh X$ the category of coherent sheaves on $X$ . This paper is devoted to s…

math.RT2025

An open question for $d$ -tilting bundles on Geigle-Lenzing projective spaces

Jianmin Chen, Weikang Weng

We construct a family of $2$ -tilting bundles on a Geigle-Lenzing projective space of type $(2, 2, p, q)$ via the action of iterated $2$ -APR mutations. As an application, we give some…

math.AG2025

Brieskorn-Pham singularities via ACM bundles on Geigle-Lenzing projective spaces

Jianmin Chen, Shiquan Ruan, Weikang Weng

We study the singularity category of the Brieskorn-Pham singularity $R = k [X_{1}, \dots, X_{4}] / (\sum_{i = 1}^{4} X_{i}^{p_{i}})$ , associated with the Geigle-Lenzing projective space $\mathbb{…

Ideal quotients of n-exact categories

On the representation type of higher preprojective algebras of type A

A recollement approach to Brieskorn-Pham singularities

ACM tilting bundles on a Geigle-Lenzing projective plane of type (2,2,2,p)

An open question for d-tilting bundles on Geigle-Lenzing projective spaces

Brieskorn-Pham singularities via ACM bundles on Geigle-Lenzing projective spaces

Ideal quotients of $n$ -exact categories

On the representation type of higher preprojective algebras of type $A$

ACM tilting bundles on a Geigle-Lenzing projective plane of type $(2, 2, 2, p)$

An open question for $d$ -tilting bundles on Geigle-Lenzing projective spaces