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I am interested in the graph $\Gamma_f$ of a morphism

$f: X\rightarrow Y$ between two sufficiently nice schemes $X,Y$.

One knows that it is a closed subset of $X\times Y$ (when the schemes are nice, say varieties over a field).

I would like to know the following: if you endow it with the reduced structure, what are the stalks of it's structure sheaf in a point $(x,f(x))$ ?

Thanks you very much!

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    You're really posting a lot of questions here and on MO. Are you really thinking your questions over carefully before you ask them here? Do you really have time to digest all the helpful answers you've been getting?2011-08-22

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