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Combinatorial methods of character enumeration for the unitriangular group
Combinatorial methods of character enumeration unitriangular group
2011/1/20
Let UTn(q) denote the unitriangular group of unipotent n×n upper triangular matrices over
a field with q elements. The numbers which appear as the degrees of the complex irreducible
characters of UT...
Combinatorial Methods for Detecting Surface Subgroups in Right-Angled Artin Groups
Combinatorial Methods Surface Subgroups Right-Angled Artin Groups
2011/2/23
We give a short proof of the following theorem of Sang-hyun Kim:if A() is a right-angled Artin group with de ning graph , then A() contains a hyperbolic surface subgroup ...
Combinatorial Methods for Detecting Surface Subgroups in Right-Angled Artin Groups
Combinatorial Methods Surface Subgroups Right-Angled Artin Groups
2011/2/23
We give a short proof of the following theorem of Sang-hyun Kim:if A() is a right-angled Artin group with de ning graph , then A() contains a hyperbolic surface subgroup ...