نتایج جستجو برای: partial fourier transform

تعداد نتایج: 363914  

1993
Carl M. Bender

The connection between a Taylor series and a continued-fraction involves a nonlinear relation between the Taylor coefficients {an} and the continued-fraction coefficients {bn}. In many instances it turns out that this nonlinear relation transforms a complicated sequence {an} into a very simple one {bn}. We illustrate this simplification in the context of graph combinatorics. PACS numbers: 02.90...

2012
Peter J. Olver

In addition to their inestimable importance in mathematics and its applications, Fourier series also serve as the entry point into the wonderful world of Fourier analysis and its wide-ranging extensions and generalizations. An entire industry is devoted to developing the theory and enlarging the scope of applications of Fourier–inspired methods. New directions in Fourier analysis continue to be...

1999
J. D. Webb B. M. Keyes R. K. Ahrenkiel M. W. Wanlass K. Ramanathan L. M. Gedvilas M. R. Olson P. Dippo

We have been successful in adapting Fourier transform (FT) Raman accessories and spectrophotometers for sensitive measurements of the photoluminescence (PL) spectra of photovoltaic materials and devices. In many cases, the sensitivity of the FT technique allows rapid room-temperature measurements of weak luminescence spectra that cannot be observed using dispersive PL spectrophotometers. We pre...

Journal: :Complex Analysis and Operator Theory 2012

Journal: :Annali di Matematica Pura ed Applicata (1923 -) 2016

Journal: :Theoretical Computer Science 2012

Journal: :Journal of Computational and Applied Mathematics 1994

Journal: :Mathematics 2022

Quantum Fourier transform (QFT) is an important part of many quantum algorithms. However, there are few reports on fractional (QFRFT). The main reason that the definitions (FRFT) diverse, while some do not include unitarity, which leads to studies pointing out no QFRFT. In this paper, we first present a reformulation weighted (WFRFT) and prove its thereby proposing (QWFRFT). proposal QWFRFT pro...

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