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DTSTART;VALUE=DATE:20191001T171500
DTEND;VALUE=DATE:20191001T171500
UID:6078@agenda.unifr.ch
DESCRIPTION:Does every Jordan curve in the Euclidian plane contain 4 points that form the corners of a square?\nStarting from this old metric problem posed by Toeplitz a hundred years ago, we discuss problems in low-dimensional topology.\nThe talk will feature:\n- knots, embedded circles in 3-dimensional space,\n- disks and Möbius bands in 4-dimensional space, and\n- a recent translation due to Hugelmeyer recasting Toeplitz' question as a problem about knots and Möbius bands.\nNo prior knowledge of low-dimensional topology will be assumed.\n
SUMMARY:Prof. Peter Feller (ETHZ): Inscribed rectangles, Knots, and Möbius bands
CATEGORIES:Colloque / Congrès / Forum
LOCATION:PER 08\, auditoire 2.52\, Chemin du Musée 3\, 1700 Fribourg
URL;VALUE=URI:https://agenda.unifr.ch/e/fr/6078
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