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I How this defines a linear transformation

  1. Apr 25, 2016 #1
    Admit that [tex]V[/tex] is a linear space about [tex]\mathbb{R}[/tex] and that U and W are subspaces of V. Suppose that [tex]S: U \rightarrow Y[/tex] and [tex]T: W \rightarrow Y[/tex] are two linear transformations that satisfy the property:

    [tex](\forall x \in U \cap W) S(x)=T(x)[/tex]

    Define a linear transformation [tex]F: U+W \rightarrow Y[/tex] that matches with S for values in U and matches with T with values in W.

    My thought is to choose the linear transformation [tex]F=S+T[/tex] because it will be the union of both transformation, right? But we have the problem that when our objects are in the intersection of both space we will get to F = 2S instead of S
    Last edited: Apr 25, 2016
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  3. Apr 25, 2016 #2

    Stephen Tashi

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    On this forum the tags using backslash and "tex" don't work for LaTex. Use a forward slash.

    Are you asking whether it is possible to define such a linear transformaton ?

  4. Apr 25, 2016 #3
    Hello Stephen!

    Thanks, I edited my question.

    No, I know it's possible to define the linear transformation I'm asking what should be the linear transformation and how can I get there :)
  5. Apr 25, 2016 #4


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    Do you know about direct sums, and complements of subspaces?
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