Proof of the Inner Automorphism Theorem for Endomorphism Algebras

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SUMMARY

The discussion centers on the Inner Automorphism Theorem for endomorphism algebras, specifically stating that every automorphism of an algebra of endomorphisms of a vector space is indeed an inner automorphism. The original poster sought a proof or sketch of this theorem, which is considered well-known in mathematical literature. A reference to a specific book was provided, highlighting a relevant page that contains necessary information regarding semisimple algebras and the theorem in question.

PREREQUISITES
  • Understanding of vector spaces and their endomorphism algebras
  • Familiarity with automorphisms and inner automorphisms in algebra
  • Knowledge of semisimple algebras and their properties
  • Basic proficiency in mathematical proof techniques
NEXT STEPS
  • Study the Inner Automorphism Theorem in detail
  • Review the properties of semisimple algebras
  • Examine the proof techniques used in algebraic structures
  • Read the referenced book, focusing on page 154 for insights on the theorem
USEFUL FOR

Mathematicians, algebraists, and graduate students specializing in algebraic structures, particularly those interested in automorphisms and endomorphism algebras.

losiu99
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I have encountered a statement: Every automorphism of an algebra of endomorphisms of a vector space is an inner automorphism. I tried to prove it, but so far I fail. Does anyone know where can I find a proof of this theorem (it was stated as "well-known"), or provide a sketch?
Thank you very much in advance!
 
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Thank you, pdf on semisimple algebras seems to contain what I was looking for. Once again, thanks for quick and accurate help!
 

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