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Corner of extremals (Erdman)

  1. Jan 29, 2016 #1
    1. The problem statement, all variables and given/known data
    Capture111.PNG

    2. Relevant equations
    if.latex?%5Ctext%7BErdman%27s%20Equation%3D%7D%5Cfrac%7B%5Cpartial%20F%7D%7B%5Cpartial%20y%27%7D.gif

    3. The attempt at a solution
    gif.gif
    gif.gif

    and tried to find relationship between P and q that aren't the same to have a corner.
    gif.gif

    But as you see it doesn't give me a good value for lambda and I can't derive lambda>2 . Is it correct approach? or should I test and other way?

    Thanks
     
  2. jcsd
  3. Jan 29, 2016 #2

    Ray Vickson

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    Science Advisor
    Homework Helper

    Your posting is incomprehensible to other readers: we have no idea at all what you mean by ##p## and ##q##, since they were not mentioned anywhere in your problem.

    Also: I am sure that your statement ##\text{Erdman's Equation} = \partial F / \partial y'## is meaningless: an equation is not a quantity.

    Please re-write your question in meaningful form.
     
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