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On the Zeros of the Solutions to Nonlinear Hyperbolic Equations with Delays
Riccati Representation for Elements in H^(-1) and Its Applications
On Principle Eigenvalue for Linear Second Order Elliptic Equations in Divergence Form
Nonlinear Estimates in Anisotropic Gevrey Spaces
Diagonalizable Complex Systems, Reduced Dimension and Hermitian Systems II