Uniform geometric estimates of sublevel sets
Uniform geometric estimates of sublevel sets
复制标题
子水平集的统一几何估计
DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
Philip T. Gressman
中科院分区:
文献类型:
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作者:
Philip T. Gressman
This paper reconsiders the uniform sublevel set estimates of Carbery, Christ, and Wright [7], Phong, Stein, and Sturm [23], and Carbery and Wright [8] from a geometric perspective. This perspective leads one to consider a natural collection of homogeneous, nonlinear differential operators, which generalize mixed derivatives in ℝd. As a consequence, it is shown that, in comparison to these previous works, improved uniform estimates are possible in all but certain explicitly “flat” situations.