On Landis’ Conjecture in the Plane

On Landis’ Conjecture in the Plane
复制标题

DOI:
10.1080/03605302.2014.978015
复制
发表时间:
2014-04
影响因子:
1.9
通讯作者:
C. Kenig;L. Silvestre;Jenn-Nan Wang
C. Kenig;L. Silvestre;Jenn-Nan Wang
中科院分区:
数学2区
文献类型:
--
作者:
C. Kenig;L. Silvestre;Jenn-Nan Wang

文献摘要

被引文献

相似文献

本文证明了平面上Landis猜想的一个定量形式。设W(Z)是可测实向量值函数,V(Z)≥0是实可测标量函数,满足‖W‖L∞(R2)≤1和‖V‖L∞(R2)≤1.设u是Δu−∇(Wu)−Vu=0在R2中的实解.设u(0)=1且|u(Z)|≤exp(C0|z|).则u满足inf|z0|=Rsup|z−z0|<1|u(Z)|≥exp(−CRlogR),其中C依赖于C0。除了整个平面的情形外,我们还建立了定义在外域上的Landis猜想的一个定量形式。
In this paper we prove a quantitative form of Landis’ conjecture in the plane. Precisely, let W(z) be a measurable real vector-valued function and V(z) ≥0 be a real measurable scalar function, satisfying ‖W‖ L ∞(R 2) ≤ 1 and ‖V‖ L ∞(R 2) ≤ 1. Let u be a real solution of Δu − ∇(Wu) − Vu = 0 in R 2. Assume that u(0) = 1 and |u(z)| ≤exp (C 0|z|). Then u satisfies inf |z 0| =R sup |z−z 0| <1|u(z)| ≥exp (−CRlog R), where C depends on C 0. In addition to the case of the whole plane, we also establish a quantitative form of Landis’ conjecture defined in an exterior domain.