List questions from canonical-transformation

Published on 22 Jan 2017 - 19:14

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Some sort of rank-aware determinant? Would it be useful?

Published on 02 Mar 2017 - 9:57

36

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Block eigenvalue decompositions with strictly positive elements.

Published on 01 Apr 2017 - 13:56

28

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For $A$ in rational canonical form, find $B$ with $AB=BA$ but for which $B \notin Span\{ A^i \mid 0\leq i \leq n-1\}$

Published on 06 Feb 2023 - 14:52

91

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Change of Variables - Writing the PDE in form of the new variables

Published on 04 Apr 2023 - 18:53

72

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2nd order pde in canonical form

Published on 28 Apr 2023 - 19:49

96

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Canonical Isomorphisms

Published on 14 May 2023 - 21:56

42

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Can a $2D$ canonical transformation also be holomorphic?

Published on 31 Oct 2023 - 8:25

62

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Two sets of matrix conditions. Are they equivalent?

Published on 18 Nov 2023 - 18:22

64

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How do you determine all possible Jordan Canonical forms of a matrix given its eigenvalues and their algebraic multiplicities

Published on 04 Dec 2023 - 12:17

46

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Seeking Left $SL(n, \mathbb{R})$-Invariant Canonicalization for Full-Rank Square Matrices

Published on 08 Dec 2023 - 1:20

59

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Canonical transformation for hamiltonian system possessing first integral

Published on 25 Mar 2026 - 9:25

57

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If $V\cong X$ and $W\cong Y$, then $V\otimes W\cong X\otimes Y$?

Published on 16 Feb 2024 - 17:00

39

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Turn two ODEs first degree into a Hamiltonian with code

Published on 25 Mar 2026 - 10:52

23

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transform the equation in the respective region to canonical form: $u_{xx} + u_{xy} - xu_{yy} = 0$

Published on 23 Mar 2024 - 14:21

List Question

Find an integer quartic root of a $3\times 3$ matrix

Some sort of rank-aware determinant? Would it be useful?

Block eigenvalue decompositions with strictly positive elements.

For $A$ in rational canonical form, find $B$ with $AB=BA$ but for which $B \notin Span\{ A^i \mid 0\leq i \leq n-1\}$

Change of Variables - Writing the PDE in form of the new variables

2nd order pde in canonical form

Canonical Isomorphisms

Can a $2D$ canonical transformation also be holomorphic?

Two sets of matrix conditions. Are they equivalent?

How do you determine all possible Jordan Canonical forms of a matrix given its eigenvalues and their algebraic multiplicities

Seeking Left $SL(n, \mathbb{R})$-Invariant Canonicalization for Full-Rank Square Matrices

Canonical transformation for hamiltonian system possessing first integral

If $V\cong X$ and $W\cong Y$, then $V\otimes W\cong X\otimes Y$?

Turn two ODEs first degree into a Hamiltonian with code

transform the equation in the respective region to canonical form: $u_{xx} + u_{xy} - xu_{yy} = 0$

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