Finite presentability of normal fibre products

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• 作者：Conchita Martí ; nez-Pé ; rez ; ^{conmar@unizar.es" class="auth_mail}
• 关键词：20J05
• 刊名：Journal of Pure and Applied Algebra
• 出版年：August, 2014
• 年：2014
• 卷：218
• 期：8
• 页码：1373-1384
• 全文大小：314 K

文摘

We use Bieri-Neumann-Strebel-Renz invariants to determine when a normal fibre product in the product of two finitely presented groups is finitely presented. We give conditions that imply and in some cases characterize the existence of such finitely presented fibre products.