【摘要】 <正> 设■是 R~■中的有界开区域,具有充分光滑的边界Γ.设b∈■,T>0.记■=■x(0,T),Σ=Γ×(0,T)假定 L 是■中带变系数的二阶椭圆型偏微分算子,更多还原

【Abstract】 An approximation technique of parabolic pointwise control systems is proposed.Let k_n(x) be a δ-sequence,and the δ-function,δ(x),in the system be replaced byk_n(x).It is shown that the solution of the approximate system converges to that ofthe pointwise input system in L~2-norm,and that the corresponding optimal controlsequence with quadratic index is convergent in L~2-norm too.更多还原