منابع مشابه
The Hartman-Grobman Theorem
The Hartman–Grobman Theorem (see [3, page 353]) was proved by Philip Hartman in 1960 [5]. It had been announced byGrobman in 1959 [1], likely unbeknownst to Hartman, and Grobmanpublished his proof in 1962 [2], likely without knowing of Hartman’s work. (Grobman attributes the question to Nemycki and an earlier partial result to R.M. Minc (citing Nauč. Dokl. Vysš. Školy. Fiz.-Mat. Nauki 1 (1958))...
متن کاملOn Hartman Almost Periodic Functions
In this note we consider multi-dimensional Hartman almost periodic functions and sequences, defined with respect to different averaging sequences of subsets in R or Z. We consider the behavior of their Fourier-Bohr coefficients and their spectrum, depending on the particular averaging sequence, and we demonstrate this dependence by several examples. Extensions to compactly generated, locally co...
متن کاملGeoffrey Jefferson 1886-1961.
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Due to network effects and switching costs, platform providers often become entrenched. To dislodge them, entrants generally must offer revolutionary products. We explore a second path to platform leadership change that does not rely on Schumpeterian creative destruction: platform envelopment. By leveraging common components and shared user relationships, one platform provider can move into ano...
متن کاملComplexity of Hartman sequences par
Let T : x 7→ x + g be an ergodic translation on the compact group C and M ⊆ C a continuity set, i.e. a subset with topological boundary of Haar measure 0. An infinite binary sequence a : Z 7→ {0, 1} defined by a(k) = 1 if T (0C) ∈ M and a(k) = 0 otherwise, is called a Hartman sequence. This paper studies the growth rate of Pa(n), where Pa(n) denotes the number of binary words of length n ∈ N oc...
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ژورنال
عنوان ژورنال: Témoigner. Entre histoire et mémoire
سال: 2014
ISSN: 2031-4183,2506-6390
DOI: 10.4000/temoigner.1488