| 杜心华.关于拟微分算子有界性定理的改进形式[J].数学研究及应用,1984,4(3):47~54 |
| 关于拟微分算子有界性定理的改进形式 |
| On the Improved Form of the Bounded Theorem for Pseudo-Differential Operators |
| 投稿时间：1981-10-14 |
| DOI：10.3770/j.issn:1000-341X.1984.03.010 |
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| 摘要点击次数: 1969 |
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| Calderon A. P. et al. were studied a class of the bounded pseudo-differential-operators of order -M and type ρ,δ1, δ2, and showed them to be bounded in L2 provided that 0≤ρ≤δ1<1, 0≤ρ≤δ2<1 and M/n≥1/2(δ1+δ2)-ρ. H?raander et al. have shown that if the aforecited conditions are not valid, then the conclusion that A is bounded in L2 isn't necessarily right. Calderon et al. settled the borderline case and remove the restriction on the support of a. |
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