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Geometric Knot TheoryDorothy Buck, Jason Cantarella, John M. Sullivan and Heiko von der Mosel (1) Imperial College, London, UK
(2) University of Georgia, Athens, USA
(3) Technische Universität Berlin, Germany
(4) RWTH Aachen, Germany
Geometric knot theory studies relations between geometric properties of a space curve and the knot type it represents. As examples, knotted curves have quadrisecant lines, and have more distortion and more total curvature than (some) unknotted curves. Geometric energies for space curves – like the Möbius energy, ropelength and various regularizations – can be minimized within a given knot type to give an optimal shape for the knot. Increasing interest in this area over the past decade is partly due to various applications, for instance to random knots and polymers, to topological fluid dynamics and to the molecular biology of DNA. This workshop focused on the mathematics behind these applications, drawing on techniques from algebraic topology, differential geometry, integral geometry, geometric measure theory, calculus of variations, nonlinear optimization and harmonic analysis.
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Buck Dorothy, Cantarella Jason, Sullivan John, von der Mosel Heiko: Geometric Knot Theory. Oberwolfach Rep. 10 (2013), 1313-1358. doi: 10.4171/OWR/2013/22