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Conditions for positive definiteness of<i>M</i>-matrices

Marat IbragimovTashkent State Economic University , Ul. Uzbekistanskaya, 49,700063, Tashkent Uzbekistan
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The present paper concentrates on conditions that are necessary and sufficient for M-matrices to be positive definite. The obtained results can be used in the analysis of productivity of the Leontief input-output model.

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