Qiang ZHANG.A Description of Fixed Subgroups of Free Groups[J].Chinese Annals of Mathematics B,2016,37(5):713~718
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Authors：
Qiang ZHANG;
Foundation：
This work was supported by the National Natural Science
Foundation of China (No.11201364).
Abstract：
Let $F$ be a finitely generated free group. Martino and Ventura gave
an explicit description for the fixed subgroups of automorphisms of
$F$. The author generalizes their results to injective
endomorphisms.
