Jordan Normal Form: Multiplicities Explained

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SUMMARY

The discussion centers on the Jordan normal form and the significance of algebraic, minimal, and geometric multiplicities in determining it. Specifically, it highlights a scenario where the algebraic multiplicity is 7, while both minimal and geometric multiplicities are 3. Despite these multiplicities being identical, the matrices can exhibit different Jordan normal forms, underscoring that multiplicities alone do not suffice for deducing the Jordan normal form.

PREREQUISITES
  • Understanding of Jordan normal form in linear algebra
  • Familiarity with algebraic, minimal, and geometric multiplicities
  • Knowledge of matrix theory and eigenvalues
  • Basic concepts of linear transformations
NEXT STEPS
  • Study the derivation of Jordan normal forms from eigenvalues and eigenvectors
  • Explore the implications of different multiplicities on matrix representation
  • Learn about the relationship between Jordan blocks and matrix diagonalization
  • Investigate examples of matrices with identical multiplicities but different Jordan forms
USEFUL FOR

Students and professionals in mathematics, particularly those studying linear algebra, matrix theory, and eigenvalue problems, will benefit from this discussion.

Ted123
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In both cases the algebraic multiplicty is 7, minimal and geometric multiplicities are both 3.

Why does this mean knowing these multiplicies is not enough to deduce the Jordan normal form?
 
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Because those matrices have different Jordan normal forms even though all the multiplicities are the same
 

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