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Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Torsion free endotrivial modules for finite groups of Lie type
AU - Carlson, Jon F.
AU - Grodal, Jesper
AU - Mazza, Nadia
AU - Nakano, Daniel K.
PY - 2022/7/14
Y1 - 2022/7/14
N2 - In this paper we determine the torsion free rank of the group of endotrivial modules for any finite group of Lie type, in both defining and non-defining characteristic. Equivalently, we classify the maximal rank $2$ elementary abelian $\ell$-subgroups in any finite group of Lie type, for any prime $\ell$. This classification may be of independent interest.
AB - In this paper we determine the torsion free rank of the group of endotrivial modules for any finite group of Lie type, in both defining and non-defining characteristic. Equivalently, we classify the maximal rank $2$ elementary abelian $\ell$-subgroups in any finite group of Lie type, for any prime $\ell$. This classification may be of independent interest.
KW - endotrivial modules, finite groups of Lie type, elementary abelian subgroups
U2 - 10.2140/pjm.2022.317.239
DO - 10.2140/pjm.2022.317.239
M3 - Journal article
VL - 317
SP - 239
EP - 274
JO - Pacific Journal of Mathematics
JF - Pacific Journal of Mathematics
SN - 0030-8730
IS - 2
ER -