Title of article
On Equalizers of Sections
Author/Authors
Warren Dicks، نويسنده , , M.J Dunwoody، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1999
Pages
20
From page
20
To page
39
Abstract
LetGandMbe groups, anda, b:G → G * Mgroup-theoretic sections of the natural projectionG * M → G. We use the Almost Stability Theorem, pro-trees, and new folding sequence techniques to show that ifGis finitely generated, then the equalizer ofaandbis a free factor ofG, which answers a question of G. M. Bergman.
Keywords
almost stability , free factors , equalizers , free products of groups , Trees
Journal title
Journal of Algebra
Serial Year
1999
Journal title
Journal of Algebra
Record number
694567
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