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Cauchy Principal Value Contour Integral with Applications [PDF]

open access: yesEntropy, 2017
Cauchy principal value is a standard method applied in mathematical applications by which an improper, and possibly divergent, integral is measured in a balanced way around singularities or at infinity.
Matilde Legua, Luis M. Sánchez-Ruiz
doaj   +10 more sources

Spline approximation for Cauchy principal value integrals [PDF]

open access: yesJournal of Computational and Applied Mathematics, 1990
The author considers the problem of numerical evaluation of Cauchy principal value integrals of the form \(I(f^{(k)};y)=\oint^{b}_{a}w(x)f^{(k)}(x)/(x-y)dx\quad (k=0,1,...).\) She examines quadrature rules of the form: \(I(f^{(k)};y)\approx I_ n(f^{(k)};y)=\sum^{n}_{i=0}w_ i^{(k)}(y)f(x_ i),\) where \(a=x_ ...
Palamara Orsi, Annamaria
exaly   +3 more sources

Numerical evaluation of a generalized Cauchy principal value [PDF]

open access: yesMiskolc Mathematical Notes, 2000
Summary: A method is presented for the evaluation of a generalized Cauchy principal value of an improper integral. The integral is transformed into a Riemann integral which is evaluated using Romberg integration. This method is very convenient for computational purposes.
Nyíri, András, Baranyi, László
openaire   +6 more sources

An automatic quadrature for Cauchy principal value integrals [PDF]

open access: yesMathematics of Computation, 1991
An automatic quadrature is presented for computing Cauchy principal value integrals Q ( f ; c
Takemitsu Hasegawa, Tatsuo Torii
openaire   +3 more sources

Uniform convergence results for Cauchy principal value integrals [PDF]

open access: yesMathematics of Computation, 1991
A general uniform convergence theorem for numerical integration of Cauchy principal value integrals is proved. Seven special instances of this theorem are given as corollaries.
Philip Rabinowitz
openaire   +3 more sources

Fault Detection Approach of Cyclotron Ion Sources Based on KPCA-ISSA-SVM [PDF]

open access: yesSensors
To address the challenges of difficult feature extraction and suboptimal parameter configuration for cyclotron ion source fault diagnosis in complex environments, this study proposes an intelligent diagnostic framework integrating Kernel Principal ...
Yunlong Li   +6 more
doaj   +2 more sources

On quadrature for Cauchy principal value integrals of oscillatory functions [PDF]

open access: yesJournal of Computational and Applied Mathematics, 2003
Based on a quadrature suggested by \textit{G. E. Okecha} [Math. Comput. 49, 259--268 (1987; Zbl 0634.65013)] the authors deal with the numerical evaluation of Cauchy principal value integrals \[ H^\omega(g; t)= \lim_{\varepsilon\to 0^+}\,\int_{| x-t|\geq \varepsilon} {g(x)\over x- t} e^{i\omega x} \,dx\qquad (t\in (-1,1)).
M. R. CAPOBIANCO, CRISCUOLO, GIULIANA
openaire   +5 more sources

Extended Error Expansion of Classical Midpoint Rectangle Rule for Cauchy Principal Value Integrals on an Interval [PDF]

open access: yesJournal of Mathematics, 2021
The classical composite midpoint rectangle rule for computing Cauchy principal value integrals on an interval is studied. By using a piecewise constant interpolant to approximate the density function, an extended error expansion and its corresponding ...
Chunxiao Yu, Lingling Wei
doaj   +2 more sources

A sinc-Hunter quadrature rule for Cauchy principal value integrals [PDF]

open access: yesMathematics of Computation, 1990
A Sinc function approach is used to derive a new Hunter type quadrature rule for the evaluation of Cauchy principal value integrals of certain analytic functions. Integration over a general arc in the complex plane is considered. Special treatment is given to integrals over the interval
Bernard Bialecki
openaire   +3 more sources

A stable Gauss-Kronrod algorithm for cauchy principal-value integrals [PDF]

open access: yesComputers & Mathematics with Applications, 1986
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rabinowitz, P.
openaire   +3 more sources

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