Uniqueness and Non-Uniqueness in the Cauchy Problem

Integral Operators in the Theory of Linear Partial Differential Equations

The Hyperbolic Cauchy Problem

Cauchy Problem for Differential Operators with Double Characteristics Non-Effectively Hyperbolic Characteristics

Hyperbolic Systems with Analytic Coefficients Well-posedness of the Cauchy Problem

Partial Differential Equations

Blowup for Nonlinear Hyperbolic Equations

Blow-up Theories for Semilinear Parabolic Equations

Inverse Problems in Quantum Scattering Theory (Theoretical and Mathematical Physics)

Geometrical Optics and Related Topics

Maximum Principles in Differential Equations

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