
The authors consider the initial value problem for an abstract nonlinear ordinary differential equation of first order in some Banach space. The initial condition, which is a nonlocal condition, is of the type \(y(0)+ g(y)=y_0\), where \(g\) is some continuous function. Using a classical fixed-point theorem for compact maps due to Schäfer, the authors prove the existence of mild solutions.
nonlocal condition, Applied Mathematics, evolution, mild solution, uniqueness, fixed-point theorem, Nonlinear differential equations in abstract spaces, nonlinear evolution equation, Analysis
nonlocal condition, Applied Mathematics, evolution, mild solution, uniqueness, fixed-point theorem, Nonlinear differential equations in abstract spaces, nonlinear evolution equation, Analysis
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