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Convergence of Double Fourier Series after a Change of Variable
A. A. Sahakian Institute of Mathematics, National Academy of Sciences of Armenia
Abstract:
In this paper, we prove that for any compact set $\Omega\subset C(\mathbb T^2)$ there exists a homeomorphism $\tau$ of the closed interval $\mathbb T=[-\pi,\pi]$ such that for an arbitrary function $f\in\Omega$ the Fourier series of the function $F(x,y)=f(\tau(x),\tau(y))$ converges uniformly on $C(\mathbb T^2)$ simultaneously over rectangles, over spheres, and over triangles.
Received: 08.04.2002 Revised: 17.10.2002
Citation:
A. A. Sahakian, “Convergence of Double Fourier Series after a Change of Variable”, Mat. Zametki, 74:2 (2003), 267–277; Math. Notes, 74:2 (2003), 255–265
Linking options:
https://www.mathnet.ru/eng/mzm263https://doi.org/10.4213/mzm263 https://www.mathnet.ru/eng/mzm/v74/i2/p267
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Abstract page: | 484 | Full-text PDF : | 231 | References: | 100 | First page: | 1 |
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