List questions from numerical-linear-algebra

Published on 25 Mar 2026 - 3:00

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In QR and LU factorizations what would the results be with transposed inputs?

Published on 20 Mar 2026 - 3:20

124

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Lanczos algorithm for complex symmetric matrices with partial reorthogonalization

Published on 25 Mar 2026 - 6:50

1.1k

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If a matrix is symmetric, tridiagonal, and diagonally dominant, is it positive definite?

Published on 24 Mar 2026 - 21:36

286

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Is there a way to compute $(A\otimes B)x$ quickly without forming the Kronecker product?

Published on 25 Mar 2026 - 3:02

424

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Bounding the matrix $2$-norm of a Frobenius matrix

Published on 25 Mar 2026 - 4:31

4.1k

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Matlab Code-Include Iteration to QR Algorithm Gram-Schmidt - The Iterations of A will converge to Eigenvalues

Published on 24 Mar 2026 - 23:43

5k

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Efficient algorithm for calculating determinants

Published on 24 Mar 2026 - 19:14

72

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Matrix Factorization for $ADA^T$ for varying $D$

Published on 25 Mar 2026 - 15:26

930

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Efficient matrix-vector multiplication for "partial" Hadamard matrices

Published on 25 Mar 2026 - 10:06

306

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Matrix decomposition for a linear combination of matrices

Published on 25 Mar 2026 - 10:27

47

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Approximate low-rank $U^\top U$ decomposition / Gaussian elimination.

Published on 24 Mar 2026 - 20:55

62

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How to find a four square-equations matrix with only one known equation?

Published on 25 Mar 2026 - 6:45

513

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Numerical approximation of principal curvature

Published on 25 Mar 2026 - 4:39

198

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Is there a version of matrix rank that can take non-whole values?

Published on 25 Mar 2026 - 11:27

List Question

Eigenvalues of Gauss-Seidel and Jacobi

In QR and LU factorizations what would the results be with transposed inputs?

Lanczos algorithm for complex symmetric matrices with partial reorthogonalization

If a matrix is symmetric, tridiagonal, and diagonally dominant, is it positive definite?

Is there a way to compute $(A\otimes B)x$ quickly without forming the Kronecker product?

Bounding the matrix $2$-norm of a Frobenius matrix

Matlab Code-Include Iteration to QR Algorithm Gram-Schmidt - The Iterations of A will converge to Eigenvalues

Efficient algorithm for calculating determinants

Matrix Factorization for $ADA^T$ for varying $D$

Efficient matrix-vector multiplication for "partial" Hadamard matrices

Matrix decomposition for a linear combination of matrices

Approximate low-rank $U^\top U$ decomposition / Gaussian elimination.

How to find a four square-equations matrix with only one known equation?

Numerical approximation of principal curvature

Is there a version of matrix rank that can take non-whole values?

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