Representation of square matrices by the product of diagonal, orthogonal, triangular, and integral unimodular matrices (in connection with the inhomogeneous Minkowski conjecture)
Zapiski Nauchnykh Seminarov POMI, Studies in number theory. Part 4, Tome 67 (1977), pp. 86-94

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It is shown that for all sufficiently large numbers $n$ nonsingular square matrices of order $n$ are found for which the representation indicated in the title is impossible.
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     author = {N. S. Akhmedov},
     title = {Representation of square matrices by the product of diagonal, orthogonal, triangular, and integral unimodular matrices (in connection with the inhomogeneous {Minkowski} conjecture)},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {86--94},
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     volume = {67},
     year = {1977},
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     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_67_a2/}
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N. S. Akhmedov. Representation of square matrices by the product of diagonal, orthogonal, triangular, and integral unimodular matrices (in connection with the inhomogeneous Minkowski conjecture). Zapiski Nauchnykh Seminarov POMI, Studies in number theory. Part 4, Tome 67 (1977), pp. 86-94. http://geodesic.mathdoc.fr/item/ZNSL_1977_67_a2/