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Questions related from Yuri Borysovych Zelinskii
Definition. A set E ⊂ Rn in real Euclidean space is called to be m-convex (m < n) if for each x ∈ Rn \ E there exists an m-dimensional plane L(x) such that x ∈ L(x) and L(x) ∩ E = ∅. In a...
24 September 2015 6,109 2 View
Let C be closed Jordan curve in R 2 and for arbitrary circle L from property that intersection C ∩L contains 3 points follows, that C ∩L contains no less then 4 points. Is it true, that C also be...
29 May 2015 4,866 8 View
Detail see in On a mapping of a projective space into a sphere//Ukrainian Mathematical Journal 12/2010; 62(7):1090-1097
18 April 2015 1,235 2 View