Fefferman–poincare Inequality and Regularity for Quasilinear Subelliptic Equations
نویسنده
چکیده
This talk is a survey on some recent results concerning local regularity for weak solutions to some quasilinear degenerate elliptic equations. This topic is a very classical one in the theory of PDE and we start by recalling contributions given by many authors. Early results go back to the outstanding papers by De Giorgi [12], Stampacchia [29], Ladyzhenskaia and Uraltzeva [18] between the end of 50’s and the beginning of 60’s. Namely, for an elliptic equation of the following kind,
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