Steven Finch
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126
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Combinatorics×1Discrete Math×1Number Theory×1
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2026
Small Matrices with Large Inverses: Unimodular $4 \times 4$ Cases
This paper investigates the closeness of singularity for $n imes n$ unimodular matrices, specifically for $(2k+1)$-ary and $(k+1)$-ary cases of $4 imes 4$ nonnegative unimodular matrices.
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