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<p>Systems of linear differential equations with variable coefficients with fuzzy initial data and inhomogeneities are examined. In the case of matrices with nonnegative elements, we prove the existence of strong solutions of homogeneous and inhomogeneous initial problems and periodic solutions. The main attention is paid to the nonnegativity of solutions to the corresponding linear problems. It is established under the additional assumption of nonnegativity of fuzzy initial data and heterogeneities. An application to a dynamic model of input-output balance with fuzzy data is considered.</p>

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ON NONNEGATIVE SOLUTIONS OF SYSTEMS OF LINEAR DIFFERENTIAL EQUATIONS WITH VARIABLE COEFFICIENTS UNDER FUZZY INITIAL DATA AND INHOMOGENEITIES

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • V. L. Khatskevich

摘要

Systems of linear differential equations with variable coefficients with fuzzy initial data and inhomogeneities are examined. In the case of matrices with nonnegative elements, we prove the existence of strong solutions of homogeneous and inhomogeneous initial problems and periodic solutions. The main attention is paid to the nonnegativity of solutions to the corresponding linear problems. It is established under the additional assumption of nonnegativity of fuzzy initial data and heterogeneities. An application to a dynamic model of input-output balance with fuzzy data is considered.