In this talk, I will present some development of the corona problem
of serval complex variables and discuss its relation to the solution of the
Cauchy-Riemann equations. It contains the Carleson and Wol 's solution of
Carleson's corona theorem for one complex variable, a short survey on the
solutions of Cauchy-Riemann equations. Which includes the Hormander's
weighted L2-estimates, sup-norm estimates for the `del-bar-operator', the Berndtsson's conjecture
and its connection to the corona problem in several complex variables.