Difference between revisions of "M(5,1,1)"
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{{blockbox | {{blockbox | ||
|title = M(5,1,1) - <math>kC_5</math> | |title = M(5,1,1) - <math>kC_5</math> | ||
− | |image = | + | |image = M(2,1,1)quiver.png |
|representative = <math>kC_5</math> | |representative = <math>kC_5</math> | ||
|defect = <math>C_5</math> | |defect = <math>C_5</math> | ||
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|inertial-morita-inv? = Yes | |inertial-morita-inv? = Yes | ||
|O-morita? = Yes | |O-morita? = Yes | ||
− | |O-morita = <math>\mathcal{O} | + | |O-morita = <math>\mathcal{O} C_5</math> |
− | |||
|decomp = <math>\left( \begin{array}{c} | |decomp = <math>\left( \begin{array}{c} | ||
1 \\ | 1 \\ | ||
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|O-morita-frob = 1 | |O-morita-frob = 1 | ||
|Pic-O = <math>\mathcal{L}(B)=C_5:C_4</math> | |Pic-O = <math>\mathcal{L}(B)=C_5:C_4</math> | ||
+ | |PIgroup = <math>\mathcal{L}(B)=(C_5:C_4) \times C_2</math><ref>See [[References#R|[Ru11]]].</ref> | ||
|source? = Yes | |source? = Yes | ||
|sourcereps = <math>kC_5</math> | |sourcereps = <math>kC_5</math> | ||
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|k-derived = Forms a derived equivalence class | |k-derived = Forms a derived equivalence class | ||
|O-derived-known? = Yes | |O-derived-known? = Yes | ||
+ | |coveringblocks = M(5,1,1), [[M(5,1,2)]] (complete) | ||
+ | |coveredblocks = | ||
+ | |pcoveringblocks = | ||
}} | }} | ||
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== Other notatable representatives == | == Other notatable representatives == | ||
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== Projective indecomposable modules == | == Projective indecomposable modules == | ||
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All irreducible characters have height zero. | All irreducible characters have height zero. | ||
+ | |||
+ | == Notes == | ||
+ | |||
+ | <references /> |
Latest revision as of 22:44, 2 January 2019
M(5,1,1) - [math]kC_5[/math]
Representative: | [math]kC_5[/math] |
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Defect groups: | [math]C_5[/math] |
Inertial quotients: | [math]1[/math] |
[math]k(B)=[/math] | 5 |
[math]l(B)=[/math] | 1 |
[math]{\rm mf}_k(B)=[/math] | 1 |
[math]{\rm Pic}_k(B)=[/math] | |
Cartan matrix: | [math]\left( \begin{array}{c} 5 \\ \end{array} \right)[/math] |
Defect group Morita invariant? | Yes |
Inertial quotient Morita invariant? | Yes |
[math]\mathcal{O}[/math]-Morita classes known? | Yes |
[math]\mathcal{O}[/math]-Morita classes: | [math]\mathcal{O} C_5[/math] |
Decomposition matrices: | [math]\left( \begin{array}{c} 1 \\ 1 \\ 1 \\ 1 \\ 1 \\ \end{array}\right)[/math] |
[math]{\rm mf}_\mathcal{O}(B)=[/math] | 1 |
[math]{\rm Pic}_{\mathcal{O}}(B)=[/math] | [math]\mathcal{L}(B)=C_5:C_4[/math] |
[math]PI(B)=[/math] | [math]\mathcal{L}(B)=(C_5:C_4) \times C_2[/math][1] |
Source algebras known? | Yes |
Source algebra reps: | [math]kC_5[/math] |
[math]k[/math]-derived equiv. classes known? | Yes |
[math]k[/math]-derived equivalent to: | Forms a derived equivalence class |
[math]\mathcal{O}[/math]-derived equiv. classes known? | Yes |
[math]p'[/math]-index covering blocks: | M(5,1,1), M(5,1,2) (complete) |
[math]p'[/math]-index covered blocks: | |
Index [math]p[/math] covering blocks: |
These are nilpotent blocks.
Contents
Basic algebra
Quiver: a:<1,1>
Relations w.r.t. [math]k[/math]: a^5=0
Other notatable representatives
Projective indecomposable modules
Labelling the unique simple [math]B[/math]-module by [math]S_1[/math], the unique projective indecomposable module has Loewy structure as follows:
[math]\begin{array}{c} S_1 \\ S_1 \\ S_1 \\ S_1 \\ S_1 \\ \end{array} [/math]
Irreducible characters
All irreducible characters have height zero.