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Results tagged with numerical-linear-algebra
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user 23862
{numerical-linear-algebra} questions involving algorithms for linear algebra computations.
8
votes
1
answer
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Norm of inverse confluent Vandermonde matrix
Let $\{x_1,\dots,x_n\}$ be pairwise distinct complex numbers and $l_1+l_2+\dots+l_n=N$. The $N\times N$ confluent Vandermonde matrix is defined as
$$V=
\begin{bmatrix}
v_{1,0}&v_{2,0}&\dots&v_{n,0}\\\ …
- 959
2
votes
Accepted
Norm of inverse confluent Vandermonde matrix
For $j=1,\dots,n$ and $k=0,1,\dots,l_j-1$ denote by $u_{j,k}$ the row with index $l_1+\dots +l_{j-1}+k$ of the matrix $V^{-1}$. By using a generalization of the Hermite interpolation formula (see [3]) …
- 959