16 research outputs found

    A note on the theory of degree of mapping in Euclidean spaces

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    On principally linear elliptic differential equations of the second order

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    Perturbation and degeneration of evolutional equations in Banach spaces

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    Degree of mapping of manifolds based on that of Euclidean open sets

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    Über das Verhalten der Folge der Integralsysteme von gewöhnlichen Differentialgleichungen

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