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International Journal of Nonlinear Analysis and Applications، جلد ۷، شماره ۲، صفحات ۲۲۹-۲۴۲
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عنوان انگلیسی A contribution to approximate analytical evaluation of Fourier series via an Applied Analysis standpoint; an application in turbulence spectrum of eddies
چکیده انگلیسی مقاله In the present paper, we shall attempt to make a contribution to approximate analytical evaluation of the harmonic decomposition of an arbitrary continuous function. The basic assumption is that the class of functions that we investigate here, except the verification of Dirichlet's principles, is concurrently able to be expanded in Taylor's representation, over a particular interval of their domain of definition. Thus, we shall take into account the simultaneous validity of these two properties over this interval, in order to obtain an alternative equivalent representation of the corresponding harmonic decomposition for this category of functions. In the sequel, we shall also implement this resultant formula in the investigation of turbulence spectrum of eddies according to known from literature Von Karman's formulation, making the additional assumption that during the evolution of such stochastic dynamic effects with respect to time, the occasional time-returning period can be actually supposed to tend to infinity.
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نویسندگان مقاله جان venetis |
school of applied mathematics and physical sciences ntua, section of mechanics, 5 heroes of polytechnion avenue gr,15773 athens, greece

emilios sideridis |
school of applied mathematics and physical sciences ntua, section of mechanics, 5 heroes of polytechnion avenue gr,15773 athens, greece.

نشانی اینترنتی http://ijnaa.semnan.ac.ir/article_2308_ca224c6d5dc36b8723b184df81d1f879.pdf
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