Keyword: Sobolev surfaces

Papers related to keyword:

• G. Alberti - A. Massaccesi (Rend. Lincei Mat. Appl.)
  On some geometric properties of currents and Frobenius theorem (2017)
• V. Magnani (Proc. Amer. Math. Soc. )
  Nonexistence of horizontal Sobolev surfaces in the Heisenberg group (2010)