Finitely presented condensed groups

التفاصيل البيبلوغرافية
العنوان: Finitely presented condensed groups
المؤلفون: Osin, D.
سنة النشر: 2023
المجموعة: Mathematics
مصطلحات موضوعية: Mathematics - Group Theory
الوصف: Let $\mathcal G$ denote the space of finitely generated marked groups. For any finitely generated group $G$, we construct a continuous, injective map $f$ from the space of subgroups $Sub(G)$ to $\mathcal G$ that sends conjugate subgroups to isomorphic marked groups; in addition, if $G$ is finitely presented and $H\le G$ is finitely generated, then $f(H)$ is finitely presented. This result allows us to transfer various topological phenomena occurring in $Sub(G)$ to $\mathcal G$. In particular, we provide the first example of a finitely presented group whose isomorphism class in $\mathcal G$ has no isolated points.
Comment: v2: typos corrected. To appear in Proc. Amer. Math. Soc
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2305.08007
رقم الأكسشن: edsarx.2305.08007
قاعدة البيانات: arXiv