Math Problem Statement

Укажите все верные утверждения об автоморфизме групп (Indicate all correct statements about group automorphisms).

Solution

This image contains a task in Russian asking to select all correct statements about group automorphisms. Let me transcribe and analyze the content for you.


Task (translated): "Indicate all correct statements about group automorphisms."

Statements:

  1. The group of automorphisms is always an abelian group.
  2. The group of automorphisms can always be generated by one automorphism.
  3. The identity element in the group of automorphisms is the identity automorphism.
  4. Let ff and gg be automorphisms, then the following equality holds: (fg)(xy)=(fg)(x)(fg)(y)(f \circ g)(xy) = (f \circ g)(x)(f \circ g)(y)
  5. Under automorphism, only the identity element can map to the identity.
  6. The set of automorphisms forms a group under the operation of composition.

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Math Problem Analysis

Mathematical Concepts

Group Theory
Automorphisms
Algebraic Structures

Formulas

(f \circ g)(xy) = (f \circ g)(x)(f \circ g)(y)

Theorems

Group Automorphism Properties
Identity Automorphism

Suitable Grade Level

Undergraduate level (Math or Computer Science students)