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math.DG2013
A remark on the Omori-Yau maximum principle for semi-elliptic operators
Kyusik Hong
We generalize A. Borbély's condition for the conclusion of the Omori-Yau maximum principle for the Laplace operator on a complete Riemannian manifold to a second-order linear semi-…
math.DG2013
The symmetry of Spin^c Dirac spectrums on Riemannian product manifolds
Kyusik Hong, Chanyoung Sung
It is well-known that the spectrum of a Dirac operator on a closed Riemannian manifold of dimension for $k \in \…