The Mazur–Ulam property for two-dimensional somewhere-flat spaces
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DOI: 10.1016/j.laa.2018.09.024
Abstract: Abstract In this paper, we show that if X is a two-dimensional real normed space such that its unit sphere contains a line segment with the distance between its endpoints being greater than 1, then… read more here.
Keywords: mazur ulam; property two; ulam property; unit sphere ... See more keywords