Results 11 to 20 of about 542 (54)

The Hermite polynomials and the Bessel functions from a general point of view

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 57, Page 3633-3642, 2003., 2003
We introduce new families of Hermite polynomials and of Bessel functions from a point of view involving the use of nonexponential generating functions. We study their relevant recurrence relations and show that they satisfy differential‐difference equations which are isospectral to those of the ordinary case.
G. Dattoli   +2 more
wiley   +1 more source

Approximate closed-form formulas for the zeros of the Bessel Polynomials [PDF]

open access: yes, 2011
We find approximate expressions x(k,n) and y(k,n) for the real and imaginary parts of the kth zero z_k=x_k+i y_k of the Bessel polynomial y_n(x). To obtain these closed-form formulas we use the fact that the points of well-defined curves in the complex ...
Calderon, Marisol L., Campos, Rafael G.
core   +3 more sources

Contact problem for bonded nonhomogeneous materials under shear loading

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 29, Page 1821-1832, 2003., 2003
The present paper examines the contact problem related to shear punch through a rigid strip bonded to a nonhomogeneous medium. The nonhomogeneous medium is bonded to another nonhomogeneous medium. The strip is perpendicular to the y‐axis and parallel to the x‐axis.
B. M. Singh   +3 more
wiley   +1 more source

Asymptotics of a ${}_3F_2$ polynomial associated with the Catalan-Larcombe-French sequence [PDF]

open access: yes, 2006
The large $n$ behaviour of the hypergeometric polynomial $$\FFF{-n}{\sfrac12}{\sfrac12}{\sfrac12-n}{\sfrac12-n}{-1}$$ is considered by using integral representations of this polynomial.
Temme, Nico M.
core   +3 more sources

A note on monotonicity property of Bessel functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 20, Issue 3, Page 561-566, 1997., 1997
A theorem of Lorch, Muldoon and Szegö states that the sequence is decreasing for α > −1/2, where Jα(t) the Bessel function of the first kind order α and jα,k its kth positive root. This monotonicity property implies Szegö′s inequality , when α ≥ α′ and α′ is the unique solution of .
Stamatis Koumandos
wiley   +1 more source

Zeros of a cross-product of the Coulomb wave and Tricomi hypergeometric functions [PDF]

open access: yes, 2016
Motivated by a problem related to conditions for the existence of clines in genetics, in this note our aim is to show that the positive zeros of a cross-product of the regular Coulomb wave function and the Tricomi hypergeometric function are increasing ...
Baricz, Árpád
core   +2 more sources

Generating relations of multi-variable Tricomi functions of two indices using Lie algebra representation

open access: yesArab Journal of Mathematical Sciences, 2014
This paper is an attempt to stress the usefulness of the multi-variable special functions. In this paper, we derive certain generating relations involving 2-indices 5-variables 5-parameters Tricomi functions (2I5V5PTF) by using a Lie-algebraic method ...
Nader Ali Makboul Hassan
doaj   +1 more source

Generalized Neumann and Kapteyn expansions

open access: yesInternational Journal of Stochastic Analysis, Volume 8, Issue 4, Page 415-421, 1995., 1995
Certain formal series of a most general nature are specialized so as to deduce expansions in terms of a class of generalized hypergeometric functions. These series generalize the Neumann and Kapteyn series in the theory of Bessel functions, and their convergence is investigated. An example of a succinct expansion is also given.
Harold Exton
wiley   +1 more source

Radii problems for normalized q−Bessel and Wright functions

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
In this investigation, our main objective is to ascertain the radii of k-uniform convexity of order and the radii of strong starlikeness of the some normalized q-Bessel and Wright functions. In making this investigation we deal with the normalized Wright
Toklu Evrim   +2 more
doaj   +1 more source

Inverse Problems Involving Generalized Axial-Symmetric Helmholtz Equation [PDF]

open access: yes, 2012
MSC 2010: 35J05, 33C10 ...
Alexandrovich, I.   +2 more
core  

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