Keyword: Lavrentiev phenomenon

Papers related to keyword:

• G. Bertazzoni - S. Riccò (Nonlinear Anal. Real World Appl.)
  Regularity for obstacle problems without structure conditions (2021)
• E. Acerbi - G. Bouchitté - I. Fonseca (Ann. Inst. H. Poincaré Anal. Non Linéaire )
  Relaxation of convex functionals: the gap problem (2003)