# Defect Numbers of the Dirichlet Problem for Higher Order Partial Differential Equations in the Unit Disc

” Defect Numbers of the Dirichlet Problem for Higher Order Partial Differential Equations in the Unit Disc”  ,  A. H. Babayan, V.A. Babayan  … 2016  ,  No . 1 , P.4 – 19  ,

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##### Abstract:

We consider the Dirichlet problem in the unit disc for the linear partial differential equation with constant coefficients. The formulas for the determination the defect numbers of the problem were found, and for the improperly equation was determined the functional class, were this problem is Notherian.