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机译:Further results on Ulam stability for a system of first-order nonsingular delay differential equations
Department of Mathematics, University of Peshawar;
Department of Mathematics and General Sciences, Prince Sultan University;
Department of Physical and Numerical Sciences, Qurtuba University of Science and Information Technology Peshawar;
delayed exponential matrix; delay differential system; representation of solutions; β-Hyers-Ulam-Rassias stability;