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Allan Greenleaf, Andreas Seeger (1999)
Studia Mathematica
Sharp estimates are proven for oscillatory integrals with phase functions Φ(x,y), (x,y) ∈ X × Y, under the assumption that the canonical relation projects to T*X and T*Y with fold singularities.
Vladimir Vasilyev (2014)
Mathematica Bohemica
We consider an elliptic pseudodifferential equation in a multi-dimensional cone, and using the wave factorization concept for an elliptic symbol we describe a general solution of such equation in Sobolev-Slobodetskii spaces. This general solution depends on some arbitrary functions, their quantity being determined by an index of the wave factorization. For identifying these arbitrary functions one needs some additional conditions, for example, boundary conditions. Simple boundary value problems,...
Lakhdar Tannech Rachdi, Ahlem Rouz (2009)
Annales mathématiques Blaise Pascal
We characterize the range of some spaces of functions by the Fourier transform associated with the Riemann-Liouville operator and we give a new description of the Schwartz spaces. Next, we prove a Paley-Wiener and a Paley-Wiener-Schwartz theorems.
Jean-Michel Bony (1994)
Journées équations aux dérivées partielles
Allan Greenleaf, Andreas Seeger (2002)
Publicacions Matemàtiques
We survey results concerning the L2 boundedness of oscillatory and Fourier integral operators and discuss applications. The article does not intend to give a broad overview; it mainly focuses on topics related to the work of the authors.[Proceedings of the 6th International Conference on Harmonic Analysis and Partial Differential Equations, El Escorial (Madrid), 2002].
E.M. Stein, D.H. Phong (1992)
Inventiones mathematicae
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