What Is the Dimension of Eigenspaces for Given Characteristic Polynomial?

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SUMMARY

The dimension of the eigenspaces for the matrix A, characterized by the polynomial (x-1)(x+1)(x-c), is determined to be 1 for each eigenvalue when c is not equal to ±1. Each term in the characteristic polynomial has a multiplicity of 1, leading to a direct correlation between the multiplicity and the dimension of the eigenspaces. The specification that c ≠ 1 and c ≠ -1 is crucial as it prevents changes in the multiplicity of the polynomial, which would affect the eigenspace dimensions.

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Homework Statement



For c not equal to ±1, what is the dimension of the eigenspaces of A

The characteristic polynomial of A is (x-1)(x+1)(x-c)

The Attempt at a Solution



each term in the characteristic polynomial has a multiplicity of 1 so does this mean that the dimension of the eigenspaces is also 1?
 
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Thread moved. Questions about eigenspaces and the like are well beyond the precalculus level.
Mark53 said:

Homework Statement



For c not equal to ±1, what is the dimension of the eigenspaces of A

The characteristic polynomial of A is (x-1)(x+1)(x-c)

The Attempt at a Solution



each term in the characteristic polynomial has a multiplicity of 1 so does this mean that the dimension of the eigenspaces is also 1?
Yes, I believe so. Do you know why they specified that c ≠ 1 and c ≠ -1?
 
Mark44 said:
Thread moved. Questions about eigenspaces and the like are well beyond the precalculus level.
Yes, I believe so. Do you know why they specified that c ≠ 1 and c ≠ -1?
because it would change the multiplicity of the polynomial
 

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