Calculus of Variations and Geometric Measure Theory
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A. Magni - C. Mantegazza - M. Novaga

Motion by Curvature of Planar Networks II

created by root on 14 Jan 2013
modified by novaga on 28 Feb 2016


Published Paper

Inserted: 14 jan 2013
Last Updated: 28 feb 2016

Journal: Ann. Sc. Norm. Super. Pisa Cl. Sci.
Volume: XV
Pages: 117-144
Year: 2016


We prove that the curvature flow of an embedded planar network of three curves connected through a triple junction, with fixed endpoints on the boundary of a given strictly convex domain, exists smooth until the lengths of the three curves stay far from zero. If this is the case for all times, then the evolution exists for all times and the network converges to the Steiner minimal connection between the three endpoints.


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