## David Guichard

###
Department of Mathematics

Whitman College

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This HTML version was produced using a script written by David Farmer and adapted by David Guichard. It is generated from the TeX source; the output of TeX should be treated as the definitive version: http://www.whitman.edu/mathematics/cgt_online/cgt.pdf.

Please report problems to guichard@whitman.edu.