ASUPRA NORMEI ESENŢIALE A OPERATORULUI CU NUCLEU CAUCHY ÎN CAZUL CONTURULUI NEMĂRGINIT

Diana AFTENI Universitatea de Stat din Tiraspol

Rezumat

In this paper the essential norm of the singular integral operator in a space p L with weight is calculated. These results are used for determination of some noietherian critera for operators of the form Γ Γ A = aP + bQ .