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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   +4 more sources

Mellin Transform of Logarithm and Quotient Function with Reducible Quartic Polynomial in Terms of the Lerch Function

open access: yesAxioms, 2021
A class of definite integrals involving a quotient function with a reducible polynomial, logarithm and nested logarithm functions are derived with a possible connection to contact problems for a wedge.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

Infinite Sum of the Incomplete Gamma Function Expressed in Terms of the Hurwitz Zeta Function

open access: yesMathematics, 2021
We apply our simultaneous contour integral method to an infinite sum in Prudnikov et al. and use it to derive the infinite sum of the Incomplete gamma function in terms of the Hurwitz zeta function.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

Definite Integral Involving Rational Functions of Powers and Exponentials Expressed in Terms of the Lerch Function

open access: yesMathematical and Computational Applications, 2021
This paper gives new integrals related to a class of special functions. This paper also showcases the derivation of definite integrals involving the quotient of functions with powers and the exponential function expressed in terms of the Lerch function ...
Robert Reynolds, Allan Stauffer
doaj   +1 more source

Determination of scattering frequencies for two-dimensional acoustic problems using boundary element method

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
This paper presents a numerical approach for the determination of scattering frequencies of two-dimensional acoustic exterior resonance problems using boundary element method combined with a contour integral method.
Haifeng Gao   +4 more
doaj   +1 more source

The Logarithmic Transform of a Polynomial Function Expressed in Terms of the Lerch Function

open access: yesMathematics, 2021
This is a collection of definite integrals involving the logarithmic and polynomial functions in terms of special functions and fundamental constants. All the results in this work are new.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

Resultants and contour integrals [PDF]

open access: yesFunctional Analysis and Its Applications, 2012
9 ...
Morozov, A., Shakirov, Sh.
openaire   +2 more sources

Table in Gradshteyn and Ryzhik: Derivation of Definite Integrals of a Hyperbolic Function

open access: yesSci, 2021
We present a method using contour integration to derive definite integrals and their associated infinite sums which can be expressed as a special function. We give a proof of the basic equation and some examples of the method.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

Contour Integration for Eigenvector Nonlinearities

open access: yesSIAM Journal on Matrix Analysis and Applications, 2023
24 pages, 6 ...
Claes, Rob   +2 more
openaire   +2 more sources

The Analysis of Contour Integrals [PDF]

open access: yesAbstract and Applied Analysis, 2008
For any n, the contour integral s2 = −λ, is associated with differential equation d2y(x)/dx2 + (λ + n(n + 1)/cosh2x)y(x) = 0. Explicit solutions for n = 1 are obtained. For n = 1, eigenvalues, eigenfunctions, spectral function, and eigenfunction expansions are explored.
Tanriverdi, Tanfer, Mcleod, JohnBryce
openaire   +3 more sources

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