BOUNDS ON ARITHMETIC PROJECTIONS, AND APPLICATIONS TO THE KAKEYA CONJECTURE
BOUNDS ON ARITHMETIC PROJECTIONS, AND APPLICATIONS TO THE KAKEYA CONJECTURE
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算术投影的界限以及 KAKEYA 猜想的应用
DOI:
10.4310/mrl.1999.v6.n6.a3
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发表时间:
1999
影响因子:
1
通讯作者:
T. Tao
中科院分区:
文献类型:
--
作者:
N. Katz;T. Tao
Let A, B, be finite subsets of a torsion-free abelian group, and let G ⊂ A × B be suchth at # A, #B,#{a + b :( a, b) ∈ G }≤ N. We consider the question of estimating the quantity #{a − b :( a, b) ∈ G}. In (2) Bourgain obtained the bound of N 2− 1 13 , and applied this to the Kakeya conjecture. We improve Bourgain's estimate to N 2− 1 6 , and obtain the further improvement of