Editing Free group (section)

==References==
*{{Cite journal|last1=Kharlampovich|first1=Olga|last2=Myasnikov|first2=Alexei|title=Elementary theory of free non-abelian groups|journal=[[Journal of Algebra]]|volume=302|year=2006|issue=2|pages=451–552|doi=10.1016/j.jalgebra.2006.03.033|mr=2293770|doi-access=free}} 
*W. Magnus, A. Karrass and D. Solitar, "Combinatorial Group Theory", Dover (1976).
* P.J. Higgins, 1971, "Categories and Groupoids", van Nostrand, {New York}. Reprints in Theory and Applications of Categories, 7 (2005) pp 1–195.
*{{Cite journal
|last=Sela|first= Zlil | author-link=Zlil Sela 
|title=Diophantine geometry over groups. VI. The elementary theory of a free group. 
|journal=Geom. Funct. Anal. |volume=16 |year=2006|issue= 3|pages= 707–730|mr=2238945 |doi=10.1007/s00039-006-0565-8|s2cid= 123197664 }} 
*[[Jean-Pierre Serre|Serre, Jean-Pierre]], ''Trees'', Springer (2003) (English translation of "arbres, amalgames, SL<sub>2</sub>", 3rd edition, ''astérisque'' '''46''' (1983))
* P.J. Higgins, ''[http://doi.org/10.1112/jlms/s2-13.1.145 The fundamental groupoid of a graph of groups]'', [[Journal of the London Mathematical Society]] (2) '''13''' (1976), no. 1, 145–149.
* {{Cite book
 | last=Aluffi
 | first=Paolo
 | title=Algebra: Chapter 0
 | publisher=AMS Bookstore
 | year=2009
 | isbn=978-0-8218-4781-7
 | url=https://books.google.com/books?id=deWkZWYbyHQC&pg=PA70
 | page=70
 }}.
* {{Cite book
 | last=Grillet
 | first=Pierre Antoine
 | title=Abstract algebra
 | publisher=Springer
 | year=2007
 | isbn=978-0-387-71567-4
 | url=https://books.google.com/books?id=LJtyhu8-xYwC&pg=PA27
 | page=27
 }}.

{{DEFAULTSORT:Free Group}}
[[Category:Geometric group theory]]
[[Category:Combinatorial group theory]]
[[Category:Free algebraic structures]]
[[Category:Properties of groups]]