论文标题

由代数组引起的一类连续非缔合代数,包括$ e_8 $

A class of continuous non-associative algebras arising from algebraic groups including $E_8$

论文作者

Chayet, Maurice, Garibaldi, Skip

论文摘要

我们提供了一个在一个字段上采用简单的线性代数组$ g $的结构,并在该领域产生了交换,Unital和简单的非缔合代数$ a $。该结构的两个景点是(1)当$ g $具有类型$ e_8 $时,代数$ a $是通过将单元毗邻3875维表示而获得的,并且(2)是有效的,因为$ a $ a $可以在计算机上实施。一段时间以来,已要求对$ e_8 $案件中的代数的描述,并且最近证明了$ e_8 $是该代数的完整自动形态组。通过我们的构造获得的代数具有不寻常的PEIRCE频谱。

We give a construction that takes a simple linear algebraic group $G$ over a field and produces a commutative, unital, and simple non-associative algebra $A$ over that field. Two attractions of this construction are that (1) when $G$ has type $E_8$, the algebra $A$ is obtained by adjoining a unit to the 3875-dimensional representation and (2) it is effective, in that the product operation on $A$ can be implemented on a computer. A description of the algebra in the $E_8$ case has been requested for some time, and interest has been increased by the recent proof that $E_8$ is the full automorphism group of that algebra. The algebras obtained by our construction have an unusual Peirce spectrum.

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