Extremal problems in the class of close-to-convex functions
Optimality conditions for a Bolza problem governed by a hyperbolic system of Darboux-Goursat type
Typical real functions in the exterior of the unit circle
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On a class of diffeomorphisms defined by integro-differential operators
We study an integro-differential operator Φ: H̅¹ → L² of Fredholm type and give sufficient conditions for Φ to be a diffeomorphism. An application to functional equations is presented.
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