Перегляд за Автор "Tetiana Osipchuk"

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  • Документ
    On semiconvexity of open sets with smooth boundary in the plane
    (2020) Tetiana Osipchuk
    The present work considers properties of classes of generally convex sets in the plane known as 1-semiconvex and weakly 1-semiconvex. More specifically, it is proved that open, weakly 1-semiconvex but not 1-semiconvex set with smooth boundary in the plane consists of not less than four connected components.