Differentiable Linear Transformation

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SUMMARY

The discussion centers on the linear transformation T defined on the space of differentiable real functions on the interval (0,1), where T(f) = tf'(t). It is established that every real λ is an eigenvalue for T, with the corresponding eigenfunctions being those functions f that satisfy the differential equation f' = λf. The participants clarify that the relationship Tf = λf directly follows from the definitions of eigenvalue and eigenfunction, emphasizing the need to understand the implications of the transformation T.

PREREQUISITES
  • Understanding of linear transformations in functional analysis
  • Familiarity with eigenvalues and eigenfunctions
  • Knowledge of differentiable functions and their derivatives
  • Basic concepts of differential equations
NEXT STEPS
  • Study the properties of linear transformations in functional spaces
  • Explore the relationship between eigenvalues and differential equations
  • Learn about the implications of the operator T on differentiable functions
  • Investigate specific examples of eigenfunctions for various eigenvalues
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Mathematics students, particularly those studying linear algebra and differential equations, as well as educators seeking to explain the concepts of eigenvalues and transformations in a functional context.

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Homework Statement



Let V be the linear space of all real functions Differentiable on (0,1). If f is in V define g=T(f) to mean that g(t)=tf'(t) for all t in (0,1). Prove that every real λ is an eigenvalue for T, and determine the eigenfunctions corresponding to λ.

Homework Equations


The Attempt at a Solution



All I know is that f'=λf and T(f)=λf in general. I tried substituting the variables, and I ended up with only t, which doesn't make sense.
 
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Can you use the definitions of "eigenvalue", "eigenfunction" and T to explain what "f is an eigenfunction of T with eigenvalue λ" means?

Edit: You have already given a partial answer for that by saying that Tf=λf. This is the part that follows from the definitions of eigenvalue and eigenfunction. So now you need to use the definition of T to explain what Tf=λf means.
 
Last edited:

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