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Fourier integral operators and the canonical operator

Russian Mathematical Surveys, 1981
CONTENTS Introduction Chapter I. Real theory of Fourier integral operators ??1. Densities, pseudodifferential operators, and asymptotic expansions ??2. Homogeneous Lagrangian immersions ??3. The canonical operator ??4. Fourier integral operators ??5. Examples and applications Chapter II.
V. Nazaikinskii   +3 more
semanticscholar   +2 more sources

ON FOURIER INTEGRAL OPERATORS

Mathematics of the USSR-Sbornik, 1981
On the basis of the stationary phase method for oscillatory integrals with complex phase function, the authors prove the coincidence of Fourier integral operators and Maslov's canonical operator. Bibliography: 17 titles.
Danilov, V. G., Le Vu An'
openaire   +1 more source

Generalized Fourier Integral Operator Methods for Hyperbolic Equations with Singularities

Proceedings of the Edinburgh Mathematical Society, 2011
This paper addresses linear hyperbolic partial differential equations and pseudodifferential equations with strongly singular coefficients and data, modelled as members of algebras of generalized functions.
Claudia Garetto, M. Oberguggenberger
semanticscholar   +1 more source

Neural Operator: Learning Maps Between Function Spaces

arXiv.org, 2021
The classical development of neural networks has primarily focused on learning mappings between finite dimensional Euclidean spaces or finite sets. We propose a generalization of neural networks to learn operators, termed neural operators, that map ...
Nikola B. Kovachki   +6 more
semanticscholar   +1 more source

Quaternion fourier integral operators for spaces of generalized quaternions

Mathematical methods in the applied sciences, 2018
This article aims to discuss a class of quaternion Fourier integral operators on certain set of generalized functions, leading to a method of discussing various integral operators on various spaces of generalized functions.
S. Al-Omari, D. Baleanu
semanticscholar   +1 more source

The Endpoint Estimate for Fourier Integral Operators

Acta Mathematica Scientia, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Guangqing, Yang, Jie, Chen, Wenyi
openaire   +1 more source

Bilinear Fourier integral operators

Journal of Pseudo-Differential Operators and Applications, 2010
The authors study the boundedness of bilinear Fourier integral operators on products of Lebesgue spaces. These operators are obtained from the class of bilinear pseudodifferential operators of Coifman and Meyer via the introduction of an oscillating factor containing a real-valued phase of five variables \(\Phi(x,y_1,y_2,\xi_1,\xi_2)\) which is jointly
L. Grafakos, M. M. Peloso
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Representation of Fourier Integral Operators Using Shearlets

Journal of Fourier Analysis and Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
K. Guo, D. Labate
semanticscholar   +3 more sources

Regularity Properties of Fourier Integral Operators

The Annals of Mathematics, 1991
The authors prove sharp \(L^ p\)-estimates for Fourier integral operators. Mainly the local theory is used. Also there are regularity results for solutions for the initial value problems for strictly hyperbolic partial differential equations \[ \begin{cases} Lu(x,t)=0, & t\neq 0,\\ \partial^ j_ tu|_{t=0}=f_ j(x), & 0\leq j\leq m-1,\end{cases} \] where \
Seeger, Andreas   +2 more
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On Lp-boundedness of Fourier Integral Operators

Potential Analysis, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jie Yang, Guangqing Wang, Wenyi Chen
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