Using Trace to Determine Orthogonality of Matrices

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SUMMARY

The discussion focuses on using the trace of matrices to determine orthogonality among a set of matrices. It establishes that the trace function, defined as tr(AB) = tr(BA), plays a crucial role in this context. The conversation emphasizes the need to apply the definition of orthogonal matrices to fully understand the relationship between the trace and orthogonality. The participants clarify that while the trace is significant, it is not the sole criterion for determining orthogonality.

PREREQUISITES
  • Understanding of matrix operations, specifically multiplication and trace.
  • Familiarity with the definition and properties of orthogonal matrices.
  • Basic knowledge of linear algebra concepts.
  • Experience with mathematical proofs involving matrices.
NEXT STEPS
  • Study the properties of orthogonal matrices in detail.
  • Learn about the implications of the trace function in linear algebra.
  • Explore examples of orthogonal matrices and their applications.
  • Investigate other methods for determining orthogonality beyond the trace.
USEFUL FOR

Mathematicians, students of linear algebra, and anyone interested in advanced matrix theory and its applications in various fields.

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Is there a way to use the trace of a matrix to find whether a set of matrices are orthogoal to one another?
 
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Is the trace the only thing known ?
You just have trace = x ?
 
Since tr(AB) = tr(BA) (sorry wrong terminology), so just apply the definition of an orthogonal matrix.
 
konthelion said:
Since tr(AB) = tr(BA) (sorry wrong terminology), so just apply the definition of an orthogonal matrix.

can you explain this further?
 

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