On Space-Time Means and Strong Global Solutions of Nonlinear Hyperbolic Equations.
On Lp - Lp' Estimates for the Wave Equation.
Lp - Lp'-Estimates for Fourier Integral Operators Related to Hyperbolic Equations.
On the Existence of Global Smooth Solutions of Certain Semi-Linear Hyperbolic Equations.
On Space-Time Means Everywhere Defined Scattering Operators for Nonlinear Klein-Gordon Equations.
The Cauchy Problem for Symmetric Hyperbolic Systems in Lp.
Power Bounded Matrices of Fourier-Stieltjes Transforms.
Power-Bounded Matrices of Fourier-Stieltjes Transforms II.
Corrections to the Papers "Power Bounded Matrices of Fourier-Stieltjes Transforms I, II".
Initial Value Problems in Lp for Systems with Variable Coefficients.
On L...-decay and scattering for nonlinear Klein-Gordon equations.
On the -decay and local energy decay of solutions to nonlinear Klein-Gordon equations
Stability and Convergence Rates in Lp for Certain Difference Schemes.
Estimates Near Discontinuities for Some Difference Schemes.
Nonlinear Maps between Besov and Sobolev spaces
Our main result shows that for a large class of nonlinear local mappings between Besov and Sobolev space, interpolation is an exceptional low dimensional phenomenon. This extends previous results by Kumlin [13] from the case of analytic mappings to Lipschitz and Hölder continuous maps (Corollaries 1 and 2), and which go back to ideas of the late B.E.J. Dahlberg [8].
Single step methods for inhomogeneous linear differential equations in Banach space
The discrete Fourier-Transform an Lp approximation of functions.
Global Classical Solutions of Nonlinear Wave Equations.
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