Wenliang Zhang

collaborators

2 papers

math.AC2025

Koszul cohomology and support of local cohomology modules of complete intersections

Michael Gintz, Wenliang Zhang

Let $R$ be a noetherian commutative ring and $f_{1}, \dots, f_{c}$ be a regular sequence in $R$ . We introduce a framework to study $S u pp (H_{I}^{j} (R / (f_{1}, \dots, f_{c})))$ by linking the Koszul…

math.AC2024

Local cohomology and Segre products

Jiamin Li, Wenliang Zhang

We prove a Künneth formula for local cohomology of a Segré product of graded modules supported in a Segré product of ideals. In order to apply our formula to the study of cohomolog…