Results 131 to 140 of about 35,620 (147)
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Inversion of the laplace transform via post—widder formula

Integral Transforms and Special Functions, 2001
We construct a numerical technique to approximate the inverse Laplace transform f (t) when the transform F(s) is given analytically. The main contribution of our work is the development of a new and effective method to evaluate the coefficients of the expansion arising in the inversion formula of Post-Widder technique. Error considerations and examples
A. Al-Shuaibi
semanticscholar   +3 more sources

Inversion formula for the problem of integral geometry on families of parabolas

IEEE/OES Working Conference on Current Measurement Technology, 2021
In this paper, we consider the problems of integral geometry on families of parabolas. We examined the application of the integral geometry problem to seismic problems.
N. Uteuliev, G. Djaykov, A. Seidullaev
semanticscholar   +1 more source

A Practical Method for Computation of Laplace Inverses by Post–Widder’s Formula

National Academy Science Letters, 2017
In this note, a novel method for parametric inversion of Laplace transforms by means of the Post–Widder formula is developed. In brief, the coefficients of the MacLaurin series equivalent of the sequence, which converges to Post–Widder’s formula at infinity, are calculated by means of the iterated Aitken transform.
Hooman Fatoorehchi, Hossein Abolghasemi
openaire   +2 more sources

Post‐stack impedance blocky inversion based on analytic solution of viscous acoustic wave equation

Geophysical Prospecting, 2020
The conventional impedance inversion method ignores the attenuation effect, transmission loss and inter‐layer multiple waves; the smooth‐like regularization approach makes the corresponding impedance solution excessively smooth.
Yuanqiang Li   +4 more
semanticscholar   +1 more source

EXPLICIT BAYESIAN SOLUTION FOR INCOMPLETE PRE-POST TEST PROBLEMS USING INVERSE BAYES FORMULAE

Communications in Statistics - Theory and Methods, 2001
Pre-Post test design is one of the commonly used designs in clinical trials where patients serve as their own control and the differentail effect of a treatment is assessed. The same scenario also arises in comparing pre-post test changes in either physiological variables or molecular or genetic targets.
Tian, GL, Tan, M, Xiong, X
openaire   +3 more sources

The computation of the probability density and distribution functions for some families of random variables by means of the Wynn-ρ accelerated Post-Widder formula

Communications in statistics. Simulation and computation, 2020
We propose the suitable use of the Post-Widder inversion formula for Laplace transforms – coupled with the Wynn’s ρ-algorithm for accelerating sequences – in order to evaluate (up to the desired accuracy) the probability density function and the ...
L. Barabesi
semanticscholar   +1 more source

Fractional Fourier Analysis Using the Möbius Inversion Formula

IEEE Transactions on Signal Processing, 2019
Compared with the Fourier analysis, the fractional Fourier analysis is more suitable to process linear frequency modulation type non-stationary functions.
Hongxia Miao, Feng Zhang, R. Tao
semanticscholar   +1 more source

Approaching the Riemann hypothesis using Salem's equivalence and inversion formulae of a Widder–Lambert-type transform

Integral transforms and special functions
In this paper, we obtain a Post-Widder-type inversion formula for a Widder–Lambert-type integral transform.
B. J. González, E. Negrín
semanticscholar   +1 more source

A note on the structured perturbation analysis for the inversion formula of Toeplitz matrices

Japan journal of industrial and applied mathematics, 2022
Jing Wu   +4 more
semanticscholar   +1 more source

Selection of Sensitive Post-Stack and Pre-Stack Seismic Inversion Attributes for Improved Characterization of Thin Gas-Bearing Sands

Pure and Applied Geophysics, 2021
U. Shakir   +4 more
semanticscholar   +1 more source

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