List questions from linear-algebra

Published on 08 Apr 2026 - 17:37

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Coordinate free proof that $\operatorname{trace}(A)=0\:\Longrightarrow\:A=BC-CB$

Published on 11 Apr 2026 - 7:58

79

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Infinite Circles

Published on 11 Apr 2026 - 12:43

132

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Proving a Unique Linear Transformation

Published on 13 Apr 2026 - 2:41

504

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Are the following matrices similar, but not congruent?

Published on 29 Mar 2026 - 3:27

29

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Complete the square on cross-terms?

Published on 13 Apr 2026 - 8:24

144

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Canonical Basis and Transformations in Linear Algebra

Published on 13 Apr 2026 - 11:54

39

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Can we say any matrix whose quadratic form is $xy + z^2$ can be diagonalised to a Matrix who has two positive and one negative Eigen value?

Published on 13 Apr 2026 - 0:33

102

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Can any linear map, $\phi$, can be expressed a as $\phi = S + N - N^T,$ where $S$ is a self-adjoint and $N$ is a nilpotent map

Published on 09 Apr 2026 - 5:33

578

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Does an irreducible $M$-matrix have positive diagonal entries?

Published on 12 Apr 2026 - 13:08

348

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Derivation of Newtons Method from Taylor Series

Published on 12 Apr 2026 - 2:29

1k

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Minimum value trace of A*Atranspose

Published on 13 Apr 2026 - 19:41

922

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Rank of the sum of an all-ones matrix and an identity matrix

Published on 25 Mar 2026 - 17:42

377

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Double Coset of Upper and Lower triangular matrices

Published on 12 Apr 2026 - 19:08

130

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Inequality with quotient

Published on 12 Apr 2026 - 16:00

List Question

adjoint of a matrix with real entries?

Coordinate free proof that $\operatorname{trace}(A)=0\:\Longrightarrow\:A=BC-CB$

Infinite Circles

Proving a Unique Linear Transformation

Are the following matrices similar, but not congruent?

Complete the square on cross-terms?

Canonical Basis and Transformations in Linear Algebra

Can we say any matrix whose quadratic form is $xy + z^2$ can be diagonalised to a Matrix who has two positive and one negative Eigen value?

Can any linear map, $\phi$, can be expressed a as $\phi = S + N - N^T,$ where $S$ is a self-adjoint and $N$ is a nilpotent map

Does an irreducible $M$-matrix have positive diagonal entries?

Derivation of Newtons Method from Taylor Series

Minimum value trace of A*Atranspose

Rank of the sum of an all-ones matrix and an identity matrix

Double Coset of Upper and Lower triangular matrices

Inequality with quotient

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