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  {\bf University of Kentucky, Physics 521 \\
    Homework \#16, Rev. A, due Friday, 2016-04-29 }
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{\bf 0. [bonus]} Griffiths [2ed]
Ch.~9 %\#11.4, %p404 delta fn
      \#11.5, %p407 optical potential  **
      \#11.6, %p407 hard sphere phase shifts
      \#11.8, %p412 Born: test G(r-r')
      \#11.9, %p412 hydrogen integral eq  **
      \#11.10, %p416 optical potential
      \#11.13, %p416 delta fn
      \#11.19, %p419 optical thm
      \#11.20%, %p419 gaussian
.

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