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Tag Archives: geometry

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  • 29 Apr 2021
    Kirill Krasnov

    What is Gravity?

    Kirill Krasnov author of “Formulations of General Relativity” asks the question ‘What is Gravity?’

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  • 13 Apr 2018
    David Eppstein

    Esther Szekeres on triangle inequalities

    Esther Klein (later Esther Szekeres) famously observed that five points in the plane with no three in line must contain the vertices of a convex quadrilateral. Similarly, nine points in the plane with no three in line must contain the vertices of a convex pentagon, and more generally for every n there exists a larger […]

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