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math.CA2000
Oscillatory integral operators with low-order degeneracies
Allan Greenleaf, Andreas Seeger
Sharp L^2 estimates for oscillatory integral operators and Fourier integral operators associated with canonical relations having two-sided cusp or one-sided swallowtail singulariti…
math.AP2000
Local uniqueness for the Dirichlet-to-Neumann map via the two-plane transform
Allan Greenleaf, Gunther Uhlmann
We consider the Dirichlet-to-Neumann map associated to the Schrödinger equation with a potential in a bounded Lipschitz domain in three or more dimensions. We show that the integra…