Talk:Pincherle derivative
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"ad"?
[edit]This article begins with this definition:
- the Pincherle derivative of a linear operator on the vector space of polynomials in the variable over a field is another linear operator defined as
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- so that
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It doesn't say what "ad" is. It should. Michael Hardy (talk) 23:51, 3 July 2009 (UTC)