论文标题
关于$ \ mathbb {r}^{2 \ times 2} $的Ornstein的非质量的备注
Remarks on Ornstein's non-inequality in $\mathbb{R}^{2\times 2}$
论文作者
论文摘要
我们为Ornstein的$ L^1 $非质量提供了非常简洁的证明，以二维操作员在二维中。证明只需要在三分方面支撑二维层压板即可。
We give a very concise proof of Ornstein's $L^1$ non-inequality for first- and second-order operators in two dimensions. The proof just needs a two-dimensional laminate supported on three points.
