Difference between revisions of "SD16"

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Revision as of 22:26, 5 November 2018

Blocks with defect group [math]SD_{16}[/math]

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These are examples of tame blocks and were first classified over [math]k[/math] by Erdmann (see [Er88c], [Er90b]). The classification with respect to [math]\mathcal{O}[/math] is still unknown.


Class Representative # lifts / [math]\mathcal{O}[/math] [math]k(B)[/math] [math]l(B)[/math] Inertial quotients [math]{\rm Pic}_\mathcal{O}(B)[/math] [math]{\rm Pic}_k(B)[/math] [math]{\rm mf_\mathcal{O}(B)}[/math] [math]{\rm mf_k(B)}[/math] Notes
M(16,8,1) [math]kSD_{16}[/math] 1 7 1 [math]1[/math] 1
M(16,8,2) [math]B_5(kPSU_3(5))[/math]  ? 7 2 [math]1[/math] 1 [math]SD(2 {\cal A})_1[/math]
M(16,8,3)  ? 7 2 [math]1[/math] 1 [math]SD(2 {\cal A})_2[/math]
M(16,8,4)  ? 7 2 [math]1[/math] 1 [math]SD(2 {\cal B})_1[/math]
M(16,8,5)  ? 7 2 [math]1[/math] 1 [math]SD(2 {\cal B})_2[/math]
M(16,8,6)  ? 7 3 [math]1[/math] 1 [math]SD(3 {\cal A})_1[/math]
M(16,8,7)  ? 7 3 [math]1[/math] 1 [math]SD(3 {\cal B})_1[/math]
M(16,8,8)  ? 7 3 [math]1[/math] 1 [math]SD(3 {\cal C})_2[/math]
M(16,8,9)  ? 7 3 [math]1[/math] 1 [math]SD(3 {\cal D})[/math]
M(16,8,10)  ? 7 3 [math]1[/math] 1 [math]SD(3 {\cal H})[/math]