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Examples from the TeXbook
(Chapter 18, Commutative Diagram)

TeXbook, Exercise 18.46
\matrix{ &&&&&&0\cr &&&&&&\mapdown{}\cr \rule 0pt 1.1em .6em 0&\mapright{}&{\cal O}_C&\mapright\iota&\cal E& \mapright\rho&\cal L&\mapright{}&0\cr &&\Big\Vert&&\mapdown\phi&&\mapdown\psi\cr \rule 0pt 1.1em .6em 0&\mapright{}&{\cal O}_C&\mapright{}&\pi_*{\cal O}_D& \mapright\delta&R^1f_*{\cal O}_V(-D)&\mapright{}&0\cr &&&&&&\mapdown{\theta_i\otimes\gamma^{-1}}\cr \rule 0pt 1.1em .6em &&&&&&\hidewidth R^1f_*\bigl({\cal O}_V(-iM)\bigr)\otimes\gamma^{-1}\hidewidth\cr &&&&&&\mapdown{}\cr &&&&&&0 }

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Created: 14 Mar 2004
Last modified: Mar 15, 2009 1:05:11 PM
Comments to: dpvc@union.edu
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