City Research Online

Weight Conjectures for Fusion Systems on an Extraspecial Group

Kessar, R., Linckelmann, M., Lynd, J. & Semeraro, J. (2026). Weight Conjectures for Fusion Systems on an Extraspecial Group. Journal of the Australian Mathematical Society, pp. 1-21. doi: 10.1017/s1446788725101390

Abstract

In a previous paper, we stated and motivated counting conjectures for fusion systems that are purely local analogues of several local-to-global conjectures in the modular representation theory of finite groups. Here, we verify some of these conjectures for fusion systems on an extraspecial group of order p3, which contain among them the Ruiz–Viruel exotic fusion systems at the prime 7. As a byproduct, we verify Robinson’s ordinary weight conjecture for principal p-blocks of almost simple groups G realizing such (nonconstrained) fusion systems.

Publication Type: Article
Additional Information: This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Publisher Keywords: fusion system; block; weights; finite group
Subjects: Q Science
Q Science > QA Mathematics
Departments: School of Science & Technology
School of Science & Technology > Department of Mathematics
SWORD Depositor:
[thumbnail of weight-conjectures-for-fusion-systems-on-an-extraspecial-group.pdf]
Preview
Text - Published Version
Available under License Creative Commons Attribution.

Download (301kB) | Preview

Export

Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email

Downloads

Downloads per month over past year

View more statistics

Actions (login required)

Admin Login Admin Login