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Published in 2019 at "Aequationes mathematicae"
DOI: 10.1007/s00010-020-00706-5
Abstract: We prove that a smooth convex body of diameter $$\delta < \frac{\pi }{2}$$ δ < π 2 on the d -dimensional unit sphere $$S^d$$ S d is of constant diameter $$\delta $$ δ if and…
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Keywords:
constant diameter;
constant width;
spherical body;
diameter ... See more keywords
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Published in 2019 at "Journal of Mathematical Analysis and Applications"
DOI: 10.1016/j.jmaa.2018.09.053
Abstract: Abstract We prove that every Banach space which admits an unconditional basis can be renormed to contain a constant width set with empty interior, thus guaranteeing, for the first time, existence of such sets in…
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Keywords:
thin sets;
sets constant;
constant width;
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Published in 2017 at "International Journal of Mathematics"
DOI: 10.1142/s0129167x17500823
Abstract: Given an n-dimensional convex surface X0 in the Euclidean space ℝn+1, this initial surface can be deformed into a convex surface with constant width by a new evolution model which preserves the convexity of the…
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Keywords:
surface;
convex;
constant width;
surfaces constant ... See more keywords