Browsing by Subject "Fixed point"

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  • Periodicity in a System of differential equations with finite delay 
    Yankson, Ernest (University of Cape Coast, 2013)
    The existence and uniqueness of a periodic solution of the system of diferential equations ddtx(t) = A(t)x(t − τ ) are proved. In particular the Krasnoselskii’s fxed point theorem and the contraction mapping principle are ...