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Homework Statement
utt=a2uxx
Initial conditions:
1)When t=0,u=H,1<x<2 and u=0,x[itex]\notin[/itex](1<x<2)
2)When t=0,ut=H,3<x<3 and u=0,x[itex]\notin[/itex](3<x<4)
The Attempt at a Solution
So I transformed the first initial condition
[itex]\hat{u}[/itex]=1/[itex]\sqrt{2*\pi}[/itex] [itex]\int[/itex] Exp[-i*[itex]\lambda[/itex]*x)*H dx=
Hi/[itex]\sqrt{2*\pi}[/itex][itex]\lambda[/itex])[Exp(-i*[itex]\lambda[/itex]2)-Exp(-i*[itex]\lambda[/itex])]
integration boundaries are from x=1 to x=2
This condiotions is clear.
Now i have to deal with the 2nd.
Thats the problematic one.
My thought is:
du/dt=[itex]\hat{u}[/itex],only with proper boundaries.
Then maybe i can find the solution to this DE,and it would be my transformed boundary condition?