Results 1 to 10 of about 137,192 (245)

Sums of finite products of Chebyshev polynomials of the second kind and of Fibonacci polynomials [PDF]

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we consider sums of finite products of Chebyshev polynomials of the second kind and of Fibonacci polynomials and derive Fourier series expansions of functions associated with them. From these Fourier series expansions, we can express those
Taekyun Kim   +3 more
doaj   +8 more sources

Sums of finite products of Bernoulli functions [PDF]

open access: yesAdvances in Difference Equations, 2017
In this paper, we consider three types of functions given by sums of finite products of Bernoulli functions and derive their Fourier series expansions. In addition, we express each of them in terms of Bernoulli functions.
Ravi P Agarwal   +3 more
doaj   +5 more sources

Sums of finite products of Legendre and Laguerre polynomials [PDF]

open access: yesAdvances in Difference Equations, 2018
In this paper, we study sums of finite products of Legendre and Laguerre polynomials and derive Fourier series expansions of functions associated with them.
Taekyun Kim   +3 more
doaj   +5 more sources

Sums of finite products of Genocchi functions

open access: yesAdvances in Difference Equations, 2017
In a previous work, it was shown that Faber-Pandharipande-Zagier and Miki’s identities can be derived from a polynomial identity which in turn follows from a Fourier series expansion of sums of products of Bernoulli functions.
Taekyun Kim   +3 more
doaj   +4 more sources

Sums of finite products of Chebyshev polynomials of the third and fourth kinds [PDF]

open access: yesAdvances in Difference Equations, 2018
In this paper, we study sums of finite products of Chebyshev polynomials of the third and fourth kinds and obtain Fourier series expansions of functions associated with them. Then from these Fourier series expansions we will be able to express those sums
Taekyun Kim   +3 more
doaj   +4 more sources

A Few Finite Trigonometric Sums

open access: yesMathematics, 2017
Finite trigonometric sums occur in various branches of physics, mathematics, and their applications. These sums may contain various powers of one or more trigonometric functions. Sums with one trigonometric function are known; however, sums with products
Chandan Datta, Pankaj Agrawal
doaj   +4 more sources

Finite sums that involve reciprocals of products of generalized Fibonacci numbers [PDF]

open access: yes, 2014
© 2014 Walter de Gruyter GmbH, Berlin/Boston. In this paper we find closed forms for certain finite sums. In each case the denominator of the summand consists of products of generalized Fibonacci numbers. Furthermore, we express each closed form in terms
Melham, RS
core   +3 more sources

Representing by Orthogonal Polynomials for Sums of Finite Products of Fubini Polynomials [PDF]

open access: yesMathematics, 2019
In the classical connection problem, it is dealt with determining the coefficients in the expansion of the product of two polynomials with regard to any given sequence of polynomials.
Dae San Kim   +3 more
doaj   +2 more sources

Bounds on Moments of Weighted Sums of Finite Riesz Products [PDF]

open access: yesJournal of Fourier Analysis and Applications, 2020
Let $n_j$ be a lacunary sequence of integers, such that $n_{j+1}/n_j\geq r$. We are interested in linear combinations of the sequence of finite Riesz products $\prod_{j=1}^N(1+\cos(n_j t))$. We prove that, whenever the Riesz products are normalized in $L^p$ norm ($p\geq 1$) and when $r$ is large enough, the $L^p$ norm of such a linear combination is ...
Bonami, Aline   +3 more
openaire   +2 more sources

Extended Wang sum and associated products.

open access: yesPLoS ONE, 2022
The Wang sum involving the exponential sums of Lerch's Zeta functions is extended to the finite sum of the Huwitz-Lerch Zeta function to derive sums and products involving cosine and tangent trigonometric functions.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

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