A $W^{1,p}_{\mathrm{loc}}$ solution of the nonlinear Cauchy–Riemann equation lies in $W^{2,p}_{\mathrm{loc}}$

Initializing...

A $W^{1,p}_{\mathrm{loc}}$ solution of the nonlinear Cauchy–Riemann equation lies in $W^{2,p}_{\mathrm{loc}}$ · Prove2Me