Hi i'm having trouble with this:

Consider a linear operator from a Banach space X to X. Let X=L2(0,1) (lebesgue space with p=2). Give an example of a (densely defined) linear operator A which is unbounded from X to X?

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- Jan 21st 2009, 03:02 PMmbbx5va2boundedness and linear operators question
Hi i'm having trouble with this:

Consider a linear operator from a Banach space X to X. Let X=L2(0,1) (lebesgue space with p=2). Give an example of a (densely defined) linear operator A which is unbounded from X to X? - Jan 22nd 2009, 12:27 AMOpalg
You could take the operator to be the operation of differentiation. Of course, you'll have to explain why it is (a) densely defined and (b) unbounded.