October 24th, 2007, 04:07 PM  #1 
Newbie Joined: Oct 2007 From: SDSU Posts: 3 Thanks: 0  Separation of Variables
Hello, My problem is using separation of variables for what is equivalent to a PDE. The problem is of the form dT [color=white]```[/color] d^2T  = A  +B dt [color=white]```[/color] dy^2 The examples I've found all are only of first order, and don't have a constant added on. Using the assumption of T(t,y)=X(t)+Y(y) seems to be about what I need, but then I'm not sure what to do about B. Thanks, Z 
October 25th, 2007, 01:11 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,496 Thanks: 577 
Start with T=S+Bt. The equation in S will not have B in it.


Tags 
separation, variables 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
PDE Separation of Variables method  Sefrez  Applied Math  1  October 26th, 2013 09:21 AM 
Price Elasticity, Separation of Variables  John Creighton  Economics  0  March 16th, 2012 08:46 PM 
Separation of Variables  engininja  Calculus  2  February 22nd, 2011 01:06 PM 
Separation of Variables  engininja  Calculus  4  September 22nd, 2010 11:58 PM 
separation axiom  blbl  Real Analysis  3  May 26th, 2010 07:03 AM 