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    An interval analytic method in constructive existence theorems for initial value problems
    (Dynamic Publishers, 2002) Arawomo, P. O.; Akinyele, O.
    The method of interval analysis is employed to show that the solution, if it exists, of a first order initial value problem is majorised by an interval function whose end- functions satisfy some prescribed conditions. An interval operator is constructed and shown to be a contraction on the majorising interval function. Using this operator, the existence and uniqueness of the solution is established.