Symmetric Matrices over F₂ and the Lights Out Problem
classification
🧮 math.RA
cs.DM
keywords
lightsproblemsymmetricapplycontainsdiagonalelementsgeneralization
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We prove that the range of a symmetric matrix over F_2 contains the vector of its diagonal elements. We apply the theorem to a generalization of the "Lights Out" problem on graphs.
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Cited by 2 Pith papers
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Diagonal parity and loop toggling for symmetric matrices over $\mathbb F_2$
For symmetric matrices M over F_2, diag(M) is always in the image of M and solutions satisfy a rank-parity relation, with explicit formulas for diagonal perturbations and tree-structured systems.
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Diagonal parity and loop toggling for symmetric matrices over $\mathbb F_2$
Strengthens the solvability of Mx=diag(M) for symmetric M over F2 to a parity rigidity theorem diag(M)^T x ≡ rank(M) mod 2, with rank-update formulas and tree recursions for generalized odd-domination.
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