Keyword: necessary condition for minimality

Papers related to keyword:

• G. Alberti - G. Bouchitté - G. Dal Maso (Calc. Var. Partial Differential Equations)
  The calibration method for the Mumford-Shah functional and free-discontinuity problems (2003)
• M. Carriero - A. Leaci - F. Tomarelli (C. R. Math. Acad. Sci. Paris,)
  Necessary Conditions for Extremals of Blake & Zisserman Functional (2002)