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Helge

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Name Helge
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Seen Jun 11 at 17:10
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Age 28
Jun
11
comment Any possible way to invert a function built from a sum of two?
Here's a general strategy. 1) Write as a power series around a single point $t$. 2) Invert this power series. There are "nice" expressions for 2). For 1) it depends on how you choose $t$.
May
23
accepted Eigenvalues of Symmetric Tridiagonal Matrices
May
23
comment Eigenvalues of Symmetric Tridiagonal Matrices
No. The proofs are simple enough that I don't know where they can be found. math.caltech.edu/Szego.html might contain these things. The main reason I'm hesitating posting a proof is that most proofs are heavy on notation, e.g. introduce orthogonal polynomials.
May
23
answered Eigenvalues of Symmetric Tridiagonal Matrices
Feb
13
awarded  Yearling