Difference between revisions of "M(16,3,2)"

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(Irreducible characters)
 
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{{blockbox
 
{{blockbox
|title = M(16,3,2) - <math>k(SmallGroup(48,30))</math>  
+
|title = M(16,3,2) - <math>B_0(k(A_5:C_4))</math>  
 
|image =  
 
|image =  
|representative =  <math>k(SmallGroup(48,30))</math>
+
|representative =  <math>B_0(k(A_5:C_4))</math>
 
|defect = [[MNA(2,1)]]
 
|defect = [[MNA(2,1)]]
 
|inertialquotients = <math>1</math>
 
|inertialquotients = <math>1</math>
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|Pic-k=  
 
|Pic-k=  
 
|cartan = <math>\left( \begin{array}{cc}
 
|cartan = <math>\left( \begin{array}{cc}
8 & 4 \\
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16 & 8 \\
4 & 6 \\
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8 & 6 \\
 
\end{array} \right)</math>
 
\end{array} \right)</math>
 
|defect-morita-inv? =  
 
|defect-morita-inv? =  
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1 & 0 \\
 
1 & 0 \\
 
1 & 0 \\
 
1 & 0 \\
0 & 1 \\
+
2 & 1 \\
0 & 1 \\
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2 & 1 \\
 
1 & 1 \\
 
1 & 1 \\
 
1 & 1 \\
 
1 & 1 \\
 
1 & 1 \\
 
1 & 1 \\
 
1 & 1 \\
 
1 & 1 \\
\end{array}\right)</math><ref>This is the only possible decomposition matrix with the given Cartan matrix.</ref>
+
\end{array}\right)</math>
 
|O-morita-frob =  
 
|O-morita-frob =  
 
|Pic-O =
 
|Pic-O =
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== Basic algebra ==
 
== Basic algebra ==
  
'''Quiver:''' a: <1,2>, b:=<1,1>, c:=<2,1>, d:=<2,2>, e:=<2,2>
+
'''Quiver:'''  
  
 
'''Relations w.r.t. <math>k</math>:'''  
 
'''Relations w.r.t. <math>k</math>:'''  

Latest revision as of 09:51, 15 August 2019

M(16,3,2) - [math]B_0(k(A_5:C_4))[/math]
[[File:|250px]]
Representative: [math]B_0(k(A_5:C_4))[/math]
Defect groups: MNA(2,1)
Inertial quotients: [math]1[/math]
[math]k(B)=[/math] 10
[math]l(B)=[/math] 2
[math]{\rm mf}_k(B)=[/math] 1
[math]{\rm Pic}_k(B)=[/math]
Cartan matrix: [math]\left( \begin{array}{cc} 16 & 8 \\ 8 & 6 \\ \end{array} \right)[/math]
Defect group Morita invariant?
Inertial quotient Morita invariant?
[math]\mathcal{O}[/math]-Morita classes known?
[math]\mathcal{O}[/math]-Morita classes:
Decomposition matrices: [math]\left( \begin{array}{cc} 1 & 0 \\ 1 & 0 \\ 1 & 0 \\ 1 & 0 \\ 2 & 1 \\ 2 & 1 \\ 1 & 1 \\ 1 & 1 \\ 1 & 1 \\ 1 & 1 \\ \end{array}\right)[/math]
[math]{\rm mf}_\mathcal{O}(B)=[/math]
[math]{\rm Pic}_{\mathcal{O}}(B)=[/math]
[math]PI(B)=[/math]
Source algebras known?
Source algebra reps:
[math]k[/math]-derived equiv. classes known?
[math]k[/math]-derived equivalent to:
[math]\mathcal{O}[/math]-derived equiv. classes known?
[math]p'[/math]-index covering blocks:
[math]p'[/math]-index covered blocks:
Index [math]p[/math] covering blocks:

Basic algebra

Quiver:

Relations w.r.t. [math]k[/math]:

Other notatable representatives

Projective indecomposable modules

Irreducible characters

[math]k_0(B)=8[/math], [math]k_1(B)=2[/math]

Back to [math]MNA(2,1)[/math]

Notes