List questions from unimodular-matrices

Published on 01 May 2026 - 15:31

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Is this block matrix totally unimodular?

Published on 30 Apr 2026 - 3:52

1.6k

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If matrix $A$ is totally unimodular, then matrix $\begin{bmatrix} A &\pm A\end{bmatrix}$ is also totally unimodular

Published on 01 May 2026 - 10:56

97

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Find explicitely an element of SL$_2(\mathbb Z)$

Published on 02 May 2026 - 5:50

72

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(reference-request) Theorem of Frobenius regarding transforming integer-valued matrix in diagonal matrix with divisibility conditions

Published on 01 May 2026 - 20:39

76

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Proof $D_2^{-1}D_1$ is a unimodular matrix.

Published on 02 May 2026 - 6:21

99

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Ring of invariants of unimodular matrices acting on real square matrices

Published on 03 May 2026 - 1:47

96

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Reference for a result in Abelian Group Theory

Published on 02 May 2026 - 7:18

53

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Totally Unimodular Matrices

Published on 02 May 2026 - 4:12

115

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How can I compute a 3 by 3 unimodular matrix which produces an infinite number of Fermat near misses?

Published on 29 Apr 2026 - 12:52

1.1k

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How to prove that the matrix is totally unimodular?

Published on 29 Apr 2026 - 12:52

284

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Making Matrix Totally Unimodular

Published on 29 Apr 2026 - 12:53

250

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How can you verify that a 3 by 3 unimodular matrix generates an infinite number of Fermat near misses?

Published on 05 May 2026 - 4:27

237

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Is there a standard name for the groups $SL(n,\mathbb Z)$ or $GL(n,\mathbb Z)$?

Published on 26 Apr 2026 - 22:37

231

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Total Unimodularity of set of equality and inequality constraints by partitioning of rows

Published on 29 Apr 2026 - 12:52

List Question

Does this property imply total unimodularity?

Is this block matrix totally unimodular?

If matrix $A$ is totally unimodular, then matrix $\begin{bmatrix} A &\pm A\end{bmatrix}$ is also totally unimodular

Find explicitely an element of SL$_2(\mathbb Z)$

(reference-request) Theorem of Frobenius regarding transforming integer-valued matrix in diagonal matrix with divisibility conditions

Proof $D_2^{-1}D_1$ is a unimodular matrix.

Ring of invariants of unimodular matrices acting on real square matrices

Reference for a result in Abelian Group Theory

Totally Unimodular Matrices

How can I compute a 3 by 3 unimodular matrix which produces an infinite number of Fermat near misses?

How to prove that the matrix is totally unimodular?

Making Matrix Totally Unimodular

How can you verify that a 3 by 3 unimodular matrix generates an infinite number of Fermat near misses?

Is there a standard name for the groups $SL(n,\mathbb Z)$ or $GL(n,\mathbb Z)$?

Total Unimodularity of set of equality and inequality constraints by partitioning of rows

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