Endomorphisms of Free Groups That Preser
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Donghi Lee
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Article
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2002
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Elsevier Science
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English
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We prove that if an endomorphism ฯ of a free group F n of a finite rank n preserves an automorphic orbit Orb AutF n W with W = 1, i.e., if ฯ Orb AutF n W โ Orb AutF n W , then ฯ is an automorphism. ๏ฃฉ 2002 Elsevier Science (USA)