University of Cape Coast Institutional Repository

Browsing by Author "Raffoul, Youssef N."

Browsing by Author "Raffoul, Youssef N."

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  • Positive periodic solutions in neutral delay difference equations 
    Raffoul, Youssef N.; Yankson, Ernest (University of Cape Coast, 2010)
    We use Krasnoselskii’s fxed oint theorem to obtain suffcient conditions for the existence of a positive periodic solution of the neutral delay difference equation x(n + 1) = a(n)x(n) + c∆x(n − τ ) + g(n, x(n − τ ))
  • Positive periodic solutions of functional discrete systems with a parameter 
    Raffoul, Youssef N.; Yankson, Ernest (University of Cape Coast, 2019)
    The existence of multiple positive periodic solutions of the system of diference equations with a parameter x(n + 1) = A(n, x(n))x(n) + λf(n, xn), is studied. In particular, we use the eigenvalue problems of completely ...