Martingale Hardy Spaces and Summability of One-Dimensional Vilenkin-Fourier Series - Lars-Erik Persson, George Tephnadze, Ferenc Weisz

Martingale Hardy Spaces and Summability of One-Dimensional Vilenkin-Fourier Series

Buch | Softcover
XVI, 626 Seiten
2023 | 1st ed. 2022
Springer International Publishing (Verlag)
978-3-031-14461-5 (ISBN)
181,89 inkl. MwSt
This book discusses, develops and applies the theory of Vilenkin-Fourier series connected to modern harmonic analysis.

The classical theory of Fourier series deals with decomposition of a function into sinusoidal waves. Unlike these continuous waves the Vilenkin (Walsh) functions are rectangular waves. Such waves have already been used frequently in the theory of signal transmission, multiplexing, filtering, image enhancement, code theory, digital signal processing and pattern recognition. The development of the theory of Vilenkin-Fourier series has been strongly influenced by the classical theory of trigonometric series. Because of this it is inevitable to compare results of Vilenkin-Fourier series to those on trigonometric series. There are many similarities between these theories, but there exist differences also. Much of these can be explained by modern abstract harmonic analysis, which studies orthonormal systems from the point of view of the structure of a topological group.
The first part of the book can be used as an introduction to the subject, and the following chapters summarize the most recent research in this fascinating area and can be read independently. Each chapter concludes with historical remarks and open questions. The book will appeal to researchers working in Fourier and more broad harmonic analysis and will inspire them for their own and their students' research. Moreover, researchers in applied fields will appreciate it as a sourcebook far beyond the traditional mathematical domains.

- 1. Partial Sums of Vilenkin-Fourier Series in Lebesgue Spaces. - 2. Martingales and Almost Everywhere Convergence of Partial Sums of Vilenkin-Fourier Series. - 3. Vilenkin-Fejér Means and an Approximate Identityin Lebesgue Spaces. - 4. Nörlund and T Means of Vilenkin-Fourier Series in Lebesgue Spaces. - 5. Theory of Martingale Hardy Spaces. - 6. Vilenkin-Fourier Coefficients and Partial Sums in Martingale Hardy Spaces. - 7. Vilenkin-Fejér Means in Martingale Hardy Spaces. - 8. Nörlund and T Means of Vilenkin-Fourier Series in Martingale Hardy Spaces. - 9. Convergence of Vilenkin-Fourier Series in Variable Martingale Hardy Spaces. - 10. Appendix: Dyadic Group and Walsh and Kaczmarz Systems.

"The book offers a wonderful overview, very well structured and complete, on the theory of harmonic analysis developed in the context of the Vilenkin-Fourier series. ... each chapter begins with a broad introduction rich in bibliographical citations that allow the reader to locate himself in the historical context of the topics to be addressed ... the authors include an important and interesting list of open problems proposed with a view to being resolved in future research." (Iris Athamaica López Palacios, zbMATH 1512.42042, 2023)

“The book offers a wonderful overview, very well structured and complete, on the theory of harmonic analysis developed in the context of the Vilenkin-Fourier series. … each chapter begins with a broad introduction rich in bibliographical citations that allow the reader to locate himself in the historical context of the topics to be addressed … the authors include an important and interesting list of open problems proposed with a view to being resolved in future research.” (Iris Athamaica López Palacios, zbMATH 1512.42042, 2023)

Erscheinungsdatum
Zusatzinfo XVI, 626 p. 1 illus.
Verlagsort Cham
Sprache englisch
Maße 155 x 235 mm
Gewicht 973 g
Themenwelt Mathematik / Informatik Mathematik Analysis
Schlagworte Cesaro Means • Fejer Means • Harmonic Analysis • Lebesgue Constants • Lebesgue Spaces • Martingale Hardy Spaces • maximal operators • modulus of continuity • Norlund Logarithmic Means • Norlund Means • Partial Sums of Vilenkin-Fourier Series • Riesz Logarithmic Means • Strong Convergence • Variable Lebesgue Spaces • Variable Martingale Hardy Spaces • Vilenkin-Fourier Coefficients • Vilenkin Groups • Vilenkin Systems • Weak-Lp Spaces
ISBN-10 3-031-14461-9 / 3031144619
ISBN-13 978-3-031-14461-5 / 9783031144615
Zustand Neuware
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