Are Matching Commutation Relations Enough to Prove Lie Algebra Isomorphism?

In summary, an isomorphic lie algebra is a mathematical structure with a vector space and a bilinear operation called the Lie bracket. It is useful in studying symmetries and transformations in physics and mathematics, and has properties such as being a vector space, satisfying the Jacobi identity, and being closed under the Lie bracket operation. Two lie algebras are isomorphic if there exists a linear transformation that preserves the Lie bracket operation, and they can have different bases as long as the Lie bracket operation is preserved.
  • #1
parton
83
1
Hi!

I just need a "yes" or "no" answer.

If i have to show that two lie algebras are isomorphic,
is it sufficient to show that their generators fulfill the same commutation relations?
 
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  • #2
Yes. It's not hard to prove this, so I recommend it as an exercise.
 
  • #3
Ok, Thanks!
 

1. What is an isomorphic lie algebra?

An isomorphic lie algebra is a mathematical structure that consists of a vector space equipped with a bilinear operation called the Lie bracket. It is isomorphic to another lie algebra if there exists a linear transformation between the two that preserves the Lie bracket operation.

2. How are isomorphic lie algebras useful?

Isomorphic lie algebras are useful in the study of symmetries and transformations in physics and mathematics. They can be used to understand the structure and behavior of different physical systems and to solve complex problems in various fields.

3. What are the properties of an isomorphic lie algebra?

An isomorphic lie algebra has the following properties: it is a vector space, it is equipped with a bilinear operation called the Lie bracket, it satisfies the Jacobi identity, and it is closed under the Lie bracket operation.

4. How do we determine if two lie algebras are isomorphic?

To determine if two lie algebras are isomorphic, we can compare their vector spaces and the Lie bracket operation. If there exists a linear transformation that preserves the Lie bracket operation, then the two lie algebras are isomorphic.

5. Can isomorphic lie algebras have different bases?

Yes, isomorphic lie algebras can have different bases. The basis of a lie algebra does not affect its isomorphism, as long as the Lie bracket operation is preserved by the linear transformation between the two lie algebras.

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