List questions from matrix-decomposition

363

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Show how a constrained least squares problem can be reduced to solving an unconstrained least squares problem.

Published on 06 Apr 2026 - 13:07

260

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Implementing LU factorization with partial pivoting in C using only one matrix

Published on 28 Mar 2026 - 16:12

48

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The quadratic equation $x^2=c$ in $\mathrm{UT}_n(R)$

Published on 12 Oct 2021 - 9:15

56

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Iterative way of solving of over-determined, complex linear equations system with limited access to A matrix.

Published on 06 Apr 2026 - 13:10

234

Views

Problem relate to condition number of Schur complement

Published on 12 Oct 2021 - 12:11

33

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How to make matrix unitary again?

Published on 26 Mar 2026 - 9:37

860

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Simple proof of Jordan normal form

Published on 02 Apr 2026 - 22:43

137

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Solving $XX^T=A$ for complex $A$

Published on 25 Mar 2026 - 19:00

655

Views

Center of the symplectic group

Published on 17 Oct 2021 - 1:11

143

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Integer row reduction without scalar multiplication

Published on 03 Apr 2026 - 21:11

303

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bounds on norm of a vector

Published on 07 Apr 2026 - 0:20

97

Views

On what conditions for ${\bf C}$, such that $trace({\bf AC}) \geq trace({\bf BC})$, given that $trace({\bf A}) \geq trace({\bf B})$?

Published on 30 Mar 2026 - 11:17

62

Views

Prove the existence of a similar matrix

Published on 06 Apr 2026 - 7:39

297

Views

Relationship between Hermite Normal Form and Smith decomposition

Published on 23 Feb 2026 - 11:27

61

Views

Any real normal matrix can be decompsed into two real symmetric matrices, with one invertible?

Published on 23 Oct 2021 - 2:11

List Question

Show how a constrained least squares problem can be reduced to solving an unconstrained least squares problem.

Implementing LU factorization with partial pivoting in C using only one matrix

The quadratic equation $x^2=c$ in $\mathrm{UT}_n(R)$

Iterative way of solving of over-determined, complex linear equations system with limited access to A matrix.

Problem relate to condition number of Schur complement

How to make matrix unitary again?

Simple proof of Jordan normal form

Solving $XX^T=A$ for complex $A$

Center of the symplectic group

Integer row reduction without scalar multiplication

bounds on norm of a vector

On what conditions for ${\bf C}$, such that $trace({\bf AC}) \geq trace({\bf BC})$, given that $trace({\bf A}) \geq trace({\bf B})$?

Prove the existence of a similar matrix

Relationship between Hermite Normal Form and Smith decomposition

Any real normal matrix can be decompsed into two real symmetric matrices, with one invertible?

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