List questions from linear-algebra

Published on 12 Apr 2026 - 22:41

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Eigenvectors form a basis over $F^n$

Published on 13 Apr 2026 - 6:14

470

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Infinite-dimensional product space series and projections

Published on 14 Apr 2026 - 2:22

64

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Which data define an $SU(3)$ structure?

Published on 09 Apr 2026 - 3:29

423

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Quantum mechanics characteristic polynomial

Published on 12 Apr 2026 - 11:51

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When does the matrix $R$ fail to be invertible in the $QR$ decomposition?

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Let $(\mathbb Q\setminus\{0\},*)$ be a group of the rational numbers under multiplication and $(\mathbb Q,+)$ be the group of rational numbers.

Published on 14 Apr 2026 - 7:10

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How can I solve $Ax=y$ for nonsquare matrix $A$.

Published on 09 Apr 2026 - 2:04

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Finding an invertible matrix P and some matrix C

Published on 13 Apr 2026 - 17:02

59

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Different versions of the determinant theorem about $n$-covectors

Published on 24 Mar 2026 - 22:12

198

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A is $n\times n$ diagonalizable matrix and that A has only 2, ad 4 as its eigenvalues. Show that $A^2=6A-8I$

Published on 28 Mar 2026 - 22:28

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Conjecture: For $n\in N, n\neq 2$, there exists an eigenvector for any orthogonal operator T on $R^n$.

Published on 14 Apr 2026 - 11:20

180

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Discrete subgroups of $SL(2,\mathbb{C})$ characterization in terms of the norm using "diagonal process".

Published on 12 Apr 2026 - 0:31

72

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Finite Dual Basis

Published on 13 Apr 2026 - 19:21

37

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If a sequence of distinct vectors is such that the sequence of norms converges, then, is the sequence convergent?

Published on 09 Apr 2026 - 2:05

List Question

Jacobian with right inverse

Eigenvectors form a basis over $F^n$

Infinite-dimensional product space series and projections

Which data define an $SU(3)$ structure?

Quantum mechanics characteristic polynomial

When does the matrix $R$ fail to be invertible in the $QR$ decomposition?

Let $(\mathbb Q\setminus\{0\},*)$ be a group of the rational numbers under multiplication and $(\mathbb Q,+)$ be the group of rational numbers.

How can I solve $Ax=y$ for nonsquare matrix $A$.

Finding an invertible matrix P and some matrix C

Different versions of the determinant theorem about $n$-covectors

A is $n\times n$ diagonalizable matrix and that A has only 2, ad 4 as its eigenvalues. Show that $A^2=6A-8I$

Conjecture: For $n\in N, n\neq 2$, there exists an eigenvector for any orthogonal operator T on $R^n$.

Discrete subgroups of $SL(2,\mathbb{C})$ characterization in terms of the norm using "diagonal process".

Finite Dual Basis

If a sequence of distinct vectors is such that the sequence of norms converges, then, is the sequence convergent?

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