martin persson

Primitive Time-reckoning: A Study in the Origins and First Development of the Art of Counting Time Among the Primitive and Early Culture Peoples【電子書籍】 Martin Persson NilssonMartingale Hardy Spaces and Summability of One-Dimensional Vilenkin-Fourier Series【電子書籍】 Lars-Erik PerssonPrimitive Time-reckoning: A Study in the Origins and First Development of the Art of Counting Time Among the Primitive and Early Culture Peoples【電子書籍】 Martin Persson Nilsson

Primitive Time-reckoning: A Study in the Origins and First Development of the Art of Counting Time Among the Primitive and Early Culture Peoples【電子書籍】[ Martin Persson Nilsson ]

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価格 ￥640 
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  • ＜p＞The ancient civilised peoples appear in history with a fully-developed system of time-reckoningーthe Egyptians with the shifting year of 365 days, which comes as nearly as possible to the actual length of the year, counting only whole days and neglecting the additional fraction; the Babylonians and the Greeks with the lunisolar, varying between twelve and thirteen months and arranged by the Greeks from the earliest known period of history in the cycle of the Oktaeteris. It has always been clear that these systems of time-reckoning represent the final stage of a lengthy previous development, but as to the nature of this development the most daring hypotheses have been advanced. Thus, for example, eminent philologists and chronologists have believed the assertion of Censorinus, Ch. 18, and have supposed that the Oktaeteris was preceded by a Tetraeteris, even by aDieteris. It may indeed at once be asserted that such a hypothesis lacks intrinsic probability. To account for the earl...

    • Martingale Hardy Spaces and Summability of One-Dimensional Vilenkin-Fourier Series【電子書籍】[ Lars-Erik Persson ]

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    価格 ￥20,662 
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    商品の説明

  • ＜p＞This book discusses, develops and applies the theory of Vilenkin-Fourier series connected to modern harmonic analysis.＜/p＞ ＜p＞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 topo...

    • Primitive Time-reckoning: A Study in the Origins and First Development of the Art of Counting Time Among the Primitive and Early Culture Peoples【電子書籍】[ Martin Persson Nilsson ]

    ショップ 楽天Kobo電子書籍ストア
    価格 ￥567 
    商品の詳細ページへ(楽天市場)
     

    商品の説明

  • ＜p＞The ancient civilised peoples appear in history with a fully-developed system of time-reckoningーthe Egyptians with the shifting year of 365 days, which comes as nearly as possible to the actual length of the year, counting only whole days and neglecting the additional fraction; the Babylonians and the Greeks with the lunisolar, varying between twelve and thirteen months and arranged by the Greeks from the earliest known period of history in the cycle of the Oktaeteris. It has always been clear that these systems of time-reckoning represent the final stage of a lengthy previous development, but as to the nature of this development the most daring hypotheses have been advanced. Thus, for example, eminent philologists and chronologists have believed the assertion of Censorinus, Ch. 18, and have supposed that the Oktaeteris was preceded by a Tetraeteris, even by aDieteris. It may indeed at once be asserted that such a hypothesis lacks intrinsic probability. To account for the earl...
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