Abstract: This article studies the positivity and stability of homogeneous coupled differential-difference equations with time-varying delays. First, a sufficient positivity condition is proposed for ...

Differential equation is very important in science and engineering, because it required the description of some measurable quantities (position, temperature, population, concentration, electrical ...

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Department of Mathematics, School of Secondary Education Science Programme, Cross River State College of Education, Akamkpa, Nigeria. equations are those which relate one on more functions and their ...

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