Super-characters of finite algebra groups
 
 
Description:  Let $\mathbb{F}_q$ be the finite field of $q$ elements and let $A$ be an associative algebra of finite dimension over $\mathbb{F}_q$. If the Jacobson radical is $J = J(A)$, then the set $G = 1+J$ is a subgroup of the units of $A$ called algebra group. \par In this work we construct the super-characters of the algebra group $G$ for arbitrary field characteristic and we study their main properties. \par Finally we try to make a combinatorial description of the super-characters of $G$ when $A=\mathbb{F}_q\langle X \rangle/\mathbb{F}_q\langle X \rangle^n$, where $\mathbb{F}_q\langle X \rangle$ is the associative free $\mathbb{F}_q$-algebra generated by X.
Area(s):
Date:  2005-12-06
Start Time:   14:30
Speaker:  Alejandro Piñera (Univ. de Oviedo)
Place:  5.5
Research Groups: -Algebra and Combinatorics
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