指数函数系的不完备性和极小性

Necessary and sufficient conditions are obtained for the incompleteness and the minimality of the exponential system E（Λ,M） = {z l e λ n z ： l = 0,1,...,m n-1;n = 1,2,...} in the Banach space E 2 σ] consisting of some analytic functions in a half strip.If the incompleteness holds,each function in the closure of the linear span of exponential system E（Λ,M） can be extended to an analytic function represented by a Taylor-Dirichlet series.Moreover,by the conformal mapping ζ = φ（z） = e z ,the similar results hold for the incompleteness and the minimality of the power function system F （Λ,M） = {（log ζ） l ζ λ n ： l = 0,1,...,m n-1;n = 1,2,...} in the Banach space F 2 σ] consisting of some analytic functions in a sector.

Incompleteness and Minimality of Exponential System

Necessary and sufficient conditions are obtained for the incompleteness and the minimality of the exponential system $E(\Lambda, M)=\{z^l e^{\lambda_n z}: l=0,1,\ldots,m_n-1; n=1,2,\ldots\}$ in the Banach space $E^2\sigma]$ consisting of some analytic functions in a half strip. If the incompleteness holds, each function in the closure of the linear span of exponential system $E(\Lambda, M)$ can be extended to an analytic function represented by a Taylor-Dirichlet series. Moreover, by the conformal mapping $\zeta=\phi(z)=e^z$, the similar results hold for the incompleteness and the minimality of the power function system $F(\Lambda,M)=\{(\log\zeta)^l \zeta^{\lambda_n}:l=0,1,\ldots,m_n-1; n=1,2,\ldots\}$ in the Banach space $F^2\sigma]$ consisting of some analytic functions in a sector.