solve this equation ?

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 November 10, 2013, 01:43 solve this equation ? #1 Member   ahmad Join Date: Feb 2012 Posts: 97 Rep Power: 7 hi all could any body help me to solve this boundary Eq.

 November 10, 2013, 08:13 #2 Senior Member   Filippo Maria Denaro Join Date: Jul 2010 Posts: 3,340 Rep Power: 37 K is constant and u=u(r)? thus, the partial derivati is actually an ordinary derivative, this equation is a linear second order with variable coefficients and has a general integral you can obtain in analytic way by integrating two times

November 10, 2013, 08:15
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 Originally Posted by FMDenaro K is constant and u=u(r)? thus, the partial derivati is actually an ordinary derivative, this equation is a linear second order with variable coefficients and has a general integral you can obtain in analytic way by integrating two times
yes ...

yes i need the final solutions with subtitude the boundary conditions
thanks

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