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On the Growth and Stability of Real-Analytic Functions

D. H. Phong, E. M. Stein and J. A. Sturm
American Journal of Mathematics
Vol. 121, No. 3 (Jun., 1999), pp. 519-554
Stable URL: http://www.jstor.org/stable/25098936
Page Count: 36
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
On the Growth and Stability of Real-Analytic Functions
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Abstract

This paper addresses the issue of whether integrals of real-analytic functions remain finite under small deformations. An approach based on uniform estimates for certain classes of one-dimensional integrals is introduced. It is powerful enough to recover the stability properties of real integrals in two dimensions which follow from the work of Karpushkin, as well as produce new results in higher dimensions. In dimension three, the new stability results are sharp, as shown by the well-known example of Varchenko.

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