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Posted: 2/26/2007 4:35:30 PM EDT
I have to show that:

A = -d^2 / dx^2  

and

A = -d^4 / dx^4

are self adjoint and postive definite over the interval of 0 < x < 1.
Link Posted: 2/26/2007 10:21:38 PM EDT
[#1]
Paging Lambda Lambda Lambda!
Link Posted: 2/26/2007 10:31:22 PM EDT
[#2]

Quoted:
Paging Lambda Lambda Lambda!


And ΩΜ?
Link Posted: 2/26/2007 10:33:48 PM EDT
[#3]
Define A as the negated second derivative and then apply the differential operator twice and negate it.

Then look to apply a self adjoint operator that will make A look like your result.

The trick is going to be what assumptions you can make based on the interval.
Link Posted: 2/27/2007 5:34:52 AM EDT
[#4]
bump
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