Calculus of Variations and Geometric Measure Theory
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M. G. Mora

The calibration method for free-discontinuity problems on small domains

created on 14 Nov 2001


Ph.D. Thesis

Inserted: 14 nov 2001

Pages: 110
Year: 2001

Ph.D. Thesis, SISSA, 2001 - Supervisor: Gianni Dal Maso


The calibration method is a minimality criterion, which has been adapted to the case of functionals with free discontinuties by Alberti, Bouchitté, and Dal Maso. In this thesis we apply this criterion to identify a wide class of non trivial minimizers for the Mumford-Shah functional. In the last part we develop the theory of calibrations for more general functionals with free discontinuities on vector-valued maps and we describe several applications of this result.

Keywords: Free-discontinuity problems, Mumford-Shah functional, calibration method


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