...reflections.

For this short course I am omitting here many interesting examples of multiple reflections shown in my 1992 book, PVI.

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...PVI

http://sepwww.stanford.edu/sep/prof/pvi/toc_html/index.html

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...examples

http://sepwww.stanford.edu/sep/prof/pvi/tsa/paper_html/node1.html

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...textures

I thank Morgan Brown for finding these textures.

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