Articles

POINTWISE CONVERGENCE FOR EXPANSIONS IN SPHERICAL MONOGENICS

  • FEI Ming-Gang ,
  • QIAN Tao
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  • 1.School of Applied Mathematics, University of Electronic Science and Technology of China, Changdu 610054, China
    2.Department of Mathematics, Faculty of Science and Technology, University of Macau, Macao, |China

Received date: 2007-08-23

  Online published: 2009-09-20

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Abstract

We offer a new approach to deal with the pointwise convergence of Fourier-Laplace series on the unit sphere
of even-dimensional Euclidean spaces. By using spherical monogenics defined through the generalized Cauchy-Riemann operator, we obtain the spherical monogenic expansions of square integrable functions on the unit sphere. Based on the generalization of Fueter's theorem inducing monogenic functions from holomorphic functions in the complex plane and the classical Carleson's theorem, a pointwise convergence theorem on the new expansion is proved. The result is a generalization of Carleson's theorem to the higher dimensional
Euclidean spaces. The approach is simpler than those by using special functions, which may have the advantage to induce the singular integral approach for pointwise convergence problems on the spheres.

Cite this article

FEI Ming-Gang , QIAN Tao . POINTWISE CONVERGENCE FOR EXPANSIONS IN SPHERICAL MONOGENICS[J]. Acta mathematica scientia, Series B, 2009 , 29(5) : 1241 -1250 . DOI: 10.1016/S0252-9602(09)60101-6

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