On Tartar's conjecture

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33 Scopus citations


We prove that the only probability measures supported at connected subsets of 2 × 2 matrices without rank-one connections and commuting with the determinant are Dirac masses. We also prove some regularity results for fully nonlinear 2 × 2 elliptic systems of the first order.

Original languageEnglish (US)
Pages (from-to)405-412
Number of pages8
JournalAnnales de l'Institut Henri Poincare (C) Analyse Non Lineaire
Issue number4
StatePublished - Jul 1 1993


  • Young measures
  • compactness
  • regularity

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