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Homework Statement
Considering the periodic boundary conditions (given below) I am supposed to find the solution T(x,t) with the initial condition T(x,0)=[tex]\delta[/tex](x) Also I am limited to use method of images so I can't use separation of variables unfortunately.
Homework Equations
The boundary conditions are give by:
[tex]T(x=-L/2,t)=T(x=L/2,t)[/tex]
[tex]\frac{\partial T}{\partial x}(x=-L/2)=\frac{\partial T}{\partial x}(x=L/2)[/tex]
The Attempt at a Solution
I've only started and for the initial condition using method of images I get:
[tex]T(x,t)=\sum{(-1)^{n}\ T_{g}(x+n*L,t)}[/tex]
where the sum goes from -infinity to infinity.
My problem is how to implement the periodic boundary conditions into the problem.
In my textbook it says that using theese kind of boundary conditions in 1-D is equivalent to transforming the coordinates from a line to a circle. What does that mean?
I'd much appreciate it if you gave me a hint on how to solve this
Thanks
/Simon