Discrete MathematicsVolume 313, Issue 15, 6 August 2013, Pages 1600-1601Note2013 unit vectors in the planeAuthor links open overlay panelImre Bárány a b, Boris D. Ginzburg c, Victor S. Grinberg dShow moreShareCitehttps://doi.org/10.1016/j.disc.2013.04.007Get rights and contentUnder an Elsevier user licenseopen archiveAbstractGiven a norm in the plane and 2013 unit vectors in this norm, there is a signed sum of these vectors whose norm is at most one.Previous article in issueNext article in issueKeywordsUnit vectorsNormsSigned sumRecommended articlesCited by (0)Copyright © 2013 Elsevier B.V. All rights reserved.