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Journal of Convex Analysis 26 (2019), No. 1, 033--047 Copyright Heldermann Verlag 2019 The Cheeger-N-Problem in Terms of BV-Functions Marco Caroccia Center for Nonlinear Analysis, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, U.S.A. caroccia.marco@gmail.com Samuel Littig Mathematical Institute, University of Cologne, Weyertal 86-90, 50931 Cologne, Germany slittig@math.uni-koeln.de We reformulate the Cheeger-N-partition problem as a minimization among a suitable class of BV functions. This allows us to obtain a new existence proof for the Cheeger-N-problem. Moreover, we derive some connections between the Cheeger-2-problem and the second eigenvalue of the 1-Laplace operator. Keywords: Cheeger-N-problem, optimal partition, shape optimization, eigenvalue problem of the 1-Laplace operator, second eigenvalue of the 1-Laplace operator. MSC: 49Q20, 35P30, 49Q10 [ Fulltext-pdf (133 KB)] for subscribers only. |