Results 31 to 40 of about 2,378 (305)

Dualizing the Poisson summation formula.

open access: yesProceedings of the National Academy of Sciences, 1991
If f(x) and g(x) are a Fourier cosine transform pair, then the Poisson summation formula can be written as 2sumfrominfinityn = 1g(n) + g(0) = 2sumfrominfinityn = 1f(n) + f(0). The concepts of linear transformation theory lead to the following dual of this classical relation. Let phi(x) and gamma(x) = phi(1/x)/x have absolutely convergent integrals over
Duffin, Richard J., Weinberger, Hans F.
openaire   +4 more sources

Poisson Summation Formulae Associated with the Special Affine Fourier Transform and Offset Hilbert Transform [PDF]

open access: yes, 2017
This paper investigates the generalized pattern of Poisson summation formulae from the special affine Fourier transform (SAFT) and offset Hilbert transform (OHT) points of view. Several novel summation formulae are derived accordingly.
Zhi-Hai Zhuo
core   +1 more source

Summation formulae involving the Laguerre polynomial

open access: yes, 1998
A general result involving the generalized hypergeometric function is deduced by the elementary manipulation of series. Kummer's first theorem for the confluent hypergeometric function and two summation formulae for the Gauss hypergeometric function are ...
Exton, H.
core   +1 more source

Partial Sums of Two Quartic q-Series

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
The partial sums of two quartic basic hypergeometric series are investigated by means of the modified Abel lemma on summation by parts. Several summation and transformation formulae are consequently established.
Wenchang Chu, Chenying Wang
doaj   +1 more source

A proof of new summation formulae by using sampling theorems

open access: yes, 1993
Using symbolic manipulation programs, William Gosper has obtained in the last two years new, but unusual, summation formulae involving trigonometric functions.
Zayed, Ahmed I., Ahmed I. Zayed
core   +1 more source

Certain families of differential equations associated with the generalized 1-parameter Hermite–Frobenius Euler polynomials

open access: yesMathematical and Computer Modelling of Dynamical Systems
This study introduces a new approach to the development of generalized 1-parameter, 2-variable Hermite–Frobenius–Euler polynomials, which are characterized by their generating functions, series definitions and summation formulae.
Mohra Zayed   +3 more
doaj   +1 more source

A New Old Babylonian Date List with Hammurapi Year Names

open access: yesDirāsāt fī al-tārīẖ wa-al-āṯār, 2023
This paper contains the publication of a previously unknown date list of Hammurapi, the king of Babylon, with his year formulae, kept in the Sulaymaniyah Museum in Iraq. The tablet originally contained the year formulae for 42 years of Hammurapi's reign
Ardalan Khwshnaw
doaj  

Why does the sign problem occur in evaluating the overlap of HFB wave functions?

open access: yesPhysics Letters B, 2018
For the overlap matrix element between Hartree–Fock–Bogoliubov states, there are two analytically different formulae: one with the square root of the determinant (the Onishi formula) and the other with the Pfaffian (Robledo's Pfaffian formula).
Takahiro Mizusaki   +2 more
doaj   +1 more source

On the Mean Values of Certain Character Sums

open access: yesAbstract and Applied Analysis, 2013
Let q≥5 be an odd number. In this paper, we study the fourth power mean of certain character sums ∑χmodq,χ-1=-1*∑1≤a≤q/4aχa4 and ∑χmodq,χ-1=1*∑1≤a≤q/4aχa4, where ∑‍* denotes the summation over primitive characters modulo q, and give some asymptotic ...
Zhefeng Xu, Huaning Liu
doaj   +1 more source

A Generalized Poisson Summation Formula

open access: yesApplied and Computational Harmonic Analysis, 1996
The authors give two proofs for a generalization of the Poisson formula \(\sum_{n\in Z} f(n) = \sum_{n\in Z} \widehat f(n)\). Although the generalization involves abelian groups only, the original proofs went by the way of the Heisenberg group and its discrete subgroups.
Auslander, Louis, Meyer, Yves
openaire   +2 more sources

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