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The Dirichlet-Jordan test and multidimensional extensions
Author(s):
Michael
Taylor
Journal:
Proc. Amer. Math. Soc.
129
(2001),
1031-1035.
MSC (1991):
Primary 42B08, 35P10
Posted:
October 10, 2000
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Abstract:
If is a foliation of an open set by smooth -dimensional surfaces, we define a class of functions , supported in , that are, roughly speaking, smooth along and of bounded variation transverse to . We investigate geometrical conditions on that imply results on pointwise Fourier inversion for these functions. We also note similar results for functions on spheres, on compact 2-dimensional manifolds, and on the 3-dimensional torus. These results are multidimensional analogues of the classical Dirichlet-Jordan test of pointwise convergence of Fourier series in one variable.
References:
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- L. Colzani and M. Vignati, Gibbs phenomena for multiple Fourier integrals, J. Approximation Theory 80 (1995), 119-131. MR 95k:42021
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- J.-P. Kahane, Le phénomène de Pinsky et la géométrie des surfaces, CRAS Paris 321 (1995), 1027-1029. MR 96m:42018
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Additional Information:
Michael
Taylor
Affiliation:
Department of Mathematics, University of North Carolina, Chapel Hill, North Carolina 27599-3902
Email:
met@math.unc.edu
DOI:
10.1090/S0002-9939-00-05658-6
PII:
S 0002-9939(00)05658-6
Keywords:
Fourier series,
Dirichlet-Jordan test,
Gibbs phenomenon
Received by editor(s):
April 29, 1999
Received by editor(s) in revised form:
June 22, 1999
Posted:
October 10, 2000
Additional Notes:
The author was partially supported by NSF grant DMS-9600065
Communicated by:
Christopher D. Sogge
Copyright of article:
Copyright
2000,
American Mathematical Society
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