群在可解群上的泛多重传递作用
Groups Acting Generically Multiply Transitively on Solvable Groups
AI总结:
本文在有限 Morley 秩设定下,完成了群在可解群上泛多重传递作用的分类,证明此类作用等价于一般线性群在代数闭域向量空间上的自然作用,并推广了可定义本原群的分类。
摘要:
在本研究中,我们完成了有限 Morley 秩设定下,群在可解群上泛多重传递作用的分类。我们证明,如果 $G$ 是一个有限 Morley 秩的连通群,在一个有限 Morley 秩的连通可解群 $V$ 上以可定义、忠实且泛 $m$-传递的方式作用,且 $\operatorname{rk}(V)\leqslant m$,那么 $\operatorname{rk}(V)=m$,$V$ 是代数闭域 $F$ 上维度为 $m$ 的向量空间,$G\cong \operatorname{GL}_m(F)$,且该作用等价于 $\operatorname{GL}_m(F)$ 在 $F^m$ 上的自然作用。这推广了我们先前的工作 arXiv:2107.09997。作为结果的应用,我们对作用于集合 $X$ 且泛传递度为 $\operatorname{rk}(X)+1$ 的有限 Morley 秩仿射型可定义本原群进行了分类。
英文摘要:
In this work, we complete the classification of generically multiply transitive actions of groups on solvable groups in the finite Morley rank setting. We prove that if $G$ is a connected group of finite Morley rank acting definably, faithfully and generically $m$-transitively on a connected solvable group $V$ of finite Morley rank where $\operatorname{rk}(V)\leqslant m$, then $\operatorname{rk}(V)=m$, $V$ is a vector space of dimension $m$ over an algebraically closed field $F$, $G\cong \operatorname{GL}_m(F)$, and the action is equivalent to the natural action of $\operatorname{GL}_m(F)$ on $F^m$. This generalises our previous work arXiv:2107.09997. As an application of our result, we classify definably primitive groups of finite Morley rank and affine type acting on a set $X$ with a generic transitivity degree of $\operatorname{rk}(X)+1$.
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