1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Change PDE to normal form

  1. Feb 7, 2009 #1
    Hi I have this problem
    Reduce to normal form the following equation
    x2d2f/dx2-y2d2f/dy2=xy.



    First I guess by normal form , they mean a more standard equation, for example Laplacian.

    I usually know what to do when the coefficients are constants, but in this case I dont know.


    I think it is possible to transform this into a Laplacian
    , because we haven't seen the wave equation.
    So I tried to do a change of variables, and to get the Laplacian I need to solve a system of four differential equations, do you think this is the way it should be done or there is an easier change of variables I should try.

    thanks
     
    Last edited: Feb 7, 2009
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Change PDE to normal form
  1. Changing form (Replies: 3)

Loading...