论文标题
怪物类型的无限维原始轴向代数
An infinite-dimensional 2-generated primitive axial algebra of Monster type
论文作者
论文摘要
Rehren证明,如果$α\ notin \ {2β,4β\} $,怪物类型$(α,β)$的原始2产生的轴向代数最多具有八个尺寸。在本说明中,我们在任意字段$ f $上构建了怪物类型$(2,\ frac {1} {2})$的无限2产生的原始轴向代数(2,\ frac {1} {2})$,带有$ char(f)\ neq 2,3 $。这表明第二种特殊情况是$α=4β$,是Rehren绑定的真实例外。
Rehren proved that a primitive 2-generated axial algebra of Monster type $(α,β)$ has dimension at most eight if $α\notin\{2β,4β\}$. In this note we construct an infinite-dimensional 2-generated primitive axial algebra of Monster type $(2,\frac{1}{2})$ over an arbitrary field $F$ with $char(F)\neq 2,3$. This shows that the second special case, $α=4β$, is a true exception to Rehren's bound.