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-Logvinenko-Sereda sets and -Carleson measures on compact manifolds
Xing Wang, Xiangjin Xu, Cheng Zhang
Marzo and Ortega-Cerdà gave geometric characterizations for -Logvinenko-Sereda sets on the standard sphere for all . Later, Ortega-Cerdà and Pridhnani further i…
A few sharp estimates of harmonic functions with applications to Steklov eigenfunctions
Xing Wang, Cheng Zhang
On smooth compact manifolds with smooth boundary, we first establish the sharp lower bounds for the restrictions of harmonic functions in terms of their frequency functions, by usi…
Sharp local estimates for the Hermite eigenfunctions
Xing Wang, Cheng Zhang
We investigate the concentration of eigenfunctions for the Hermite operator in by establishing local bounds over the compact sets with arbitrary d…
A lower bound for the nodal sets of Steklov eigenfunctions
Xing Wang, Jiuyi Zhu
We consider the lower bound of nodal sets of Steklov eigenfunctions on smooth Riemannian manifolds with boundary--the eigenfunctions of the Dirichlet-to-Neumann map. Let be i…