The DNA Inequality in Non-Convex Regions

dc.creatorLarson, Eric
dc.date2008-01-13
dc.date2009-04-08
dc.date.accessioned2026-07-07T13:00:58Z
dc.date.available2026-07-07T13:00:58Z
dc.descriptionA simple plane closed curve $Γ$ satisfies the DNA Inequality if the average curvature of any closed curve contained inside $Γ$ exceeds the average curvature of $Γ$. In 1997 Lagarias and Richardson proved that all convex curves satisfy the DNA Inequality and asked whether this is true for any non-convex curve. They conjectured that the DNA Inequality holds for certain L-shaped curves. In this paper, we disprove this conjecture for all L-Shapes and construct a large class of non-convex curves for which the DNA Inequality holds. We also give a polynomial-time procedure for determining whether any specific curve in a much larger class satisfies the DNA Inequality.
dc.descriptionVersions 7--9 contains more figures, a summary of the proof, and other modifications. Version 6 has corrected a couple of minor notational problems with version 5. Versions 5--9 are (the same) major generalization of the theorem proved in versions 1--4
dc.identifierhttps://arxiv.org/abs/0801.1929
dc.identifierhttp://arxiv.org/abs/0801.1929
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226011
dc.subjectMetric Geometry
dc.subject51F99
dc.titleThe DNA Inequality in Non-Convex Regions
dc.typetext

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