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- W4300697823 abstract "We give a detailed microlocal study of X-ray transforms over geodesics-like families of curves with conjugate points of fold type. We show that the normal operator is the sum of a pseudodifferential operator and a Fourier integral operator. We compute the principal symbol of both operators and the canonical relation associated to the Fourier integral operator. In two dimensions, for the geodesic transform, we show that there is always a cancellation of singularities to some order, and we give an example where that order is infinite; therefore the normal operator is not microlocally invertible in that case. In the case of three dimensions or higher if the canonical relation is a local canonical graph we show microlocal invertibility of the normal operator. Several examples are also studied." @default.
- W4300697823 created "2022-10-04" @default.
- W4300697823 creator A5070853439 @default.
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- W4300697823 date "2010-04-07" @default.
- W4300697823 modified "2023-10-16" @default.
- W4300697823 title "The geodesic X-ray transform with fold caustics" @default.
- W4300697823 doi "https://doi.org/10.48550/arxiv.1004.1007" @default.
- W4300697823 hasPublicationYear "2010" @default.
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