情节剧 发表于 2025-3-28 15:45:32

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Monocle 发表于 2025-3-28 22:24:08

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使困惑 发表于 2025-3-29 01:05:45

Operators in the Theory of Walsh-Fourier Series,In this chapter, and the next, we shall obtain several results about Walsh-Fourier series by using properties of operators which take one space of measurable functions to another. We begin with definitions and some simple properties of the class of operators we wish to use.

敬礼 发表于 2025-3-29 06:34:53

Operators in the Theory of Walsh-Fourier Series,In this chapter, and the next, we shall obtain several results about Walsh-Fourier series by using properties of operators which take one space of measurable functions to another. We begin with definitions and some simple properties of the class of operators we wish to use.

Awning 发表于 2025-3-29 08:06:46

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用肘 发表于 2025-3-29 13:30:39

Generalized Multiplicative Transforms,Let 1 ≤ . < ∞. A complex valued function .(.) is said to belong to .(0, ∞) if ∫.|.(.)|. > ∞. The norm of .(.) in the space .(0, ∞) will be denoted by ǁ.ǁ. and is defined by

wall-stress 发表于 2025-3-29 16:21:48

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interference 发表于 2025-3-29 22:36:16

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故意钓到白杨 发表于 2025-3-30 02:43:08

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切割 发表于 2025-3-30 04:57:21

Lacunary Subsystems of the Walsh System,The Rademacher system, {.(.)} = {., . = 0,1,…, which was used to define the Walsh system (see §1.1), is a typical example of what is called a . of the Walsh system. We shall study these systems in the next several sections.
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查看完整版本: Titlebook: Walsh Series and Transforms; Theory and Applicati B. Golubov,A. Efimov,V. Skvortsov Book 1991 Springer Science+Business Media Dordrecht 199