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An intrinsic characterisation of polyhomogeneous Lagrangian distributions

Author: M. S. Joshi
Journal: Proc. Amer. Math. Soc. 125 (1997), 1537-1543
MSC (1991): Primary 58G15
MathSciNet review: 1371128
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Abstract: The purpose of this paper is to present a method of characterising polyhomogeneous Lagrangian distributions via testing by pseudo-differential operators. The concept of a radial operator for a Lagrangian submanifold is introduced, and polyhomogeneous Lagrangian distributions are shown to be the only Lagrangian distributions which are eigenfunctions at the top order for these operators.

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Additional Information

M. S. Joshi
Affiliation: Department of Pure Mathematics and Mathematical Statistics, University of Cambridge, 16 Mill Lane, Cambridge CB2 1SB, England, United Kingdom

Keywords: Lagrangian, polyhomogeneity, partial differential equations
Received by editor(s): September 20, 1995
Received by editor(s) in revised form: November 14, 1995
Additional Notes: This research forms part of my thesis research carried out at the Massachusetts Institute of Technology under the supervision of R.B. Melrose, and I would like to thank him for his guidance and advice.
Communicated by: Jeffrey B. Rauch
Article copyright: © Copyright 1997 American Mathematical Society

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