The study of the left and right inverse of elements in S_n;
S_n中元素的左、右逆的研究
Some criteria of the nonexistence of right inverse for linear partial differential operator are obtained by using the point of inner support.
利用内支点给出了若干判定线性偏微分算子右逆不存在的方法。
Schwartz posed the problem of determining when a linear differential operator P(D) has a (continuous linear)right inverse; that is,when does there exist a cintinuous linear map R such thatP(D)R(f) = f, for all f ( ) or all f D ( ) .
Schwartz提出了如何判断线性偏微分算子P(D)右逆的存在性问题。
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