Keywords: Two exact sequences.png math A morphism between two short exact sequences Own 2004 user AxelBoldt Created by Xy-pic using the source code below Both the image and the source code are in the public domain <pre> Produce a postscript file from this input with tex and dvips Loading the XY-Pic package \input xy \xyoption all Using postscript driver for smoother curves \xyoption ps \xyoption dvips No need for page numbers \nopagenumbers \xymatrix Our diagram is a 2x5 matrix 0\arr A_1\ard_ \alpha \arr f_1 B_1\ard_ \beta \arr g_1 C_1\ard_ \gamma \arr 0\\ 0\arr A_2\arr f_2 B_2\arr g_2 C_2\arr 0 \end </pre> Complexes algebra Xy-pic diagrams |