Results 11 to 20 of about 6,156 (296)

On Legendre numbers of the second kind [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
The Legendre numbers of the second kind, an infinite set of rational numbers, are defined from the associated Legendre functions. An explicit formula and a partial table for these numbers are given and many elementary properties are presented.
Paul W. Haggard
doaj   +2 more sources

Problems and methods of calculating the Legendre functions of arbitrary degree and order [PDF]

open access: yesGeodesy and Cartography, 2016
The known standard recursion methods of computing the full normalized associated Legendre functions do not give the necessary precision due to application of IEEE754-2008 standard, that creates a problems of underflow and overflow.
Novikova Elena, Dmitrenko Alexander
doaj   +2 more sources

Some integrals involving associated Legendre functions [PDF]

open access: yesMathematics of Computation, 1974
Calculations of some uncommon integrals involving Legendre functions and their derivatives, which may not be readily evaluated using known results, are presented. Some results show a special type of orthogonality relation in a certain sense. A few of these integrals find their applications in diffraction or scattering problems.
S. N. Samaddar
openaire   +3 more sources

Integral of Legendre polynomials and its properties [PDF]

open access: yesMathematics and Computational Sciences
This paper is concerned with deriving a new system of orthogonal polynomials whose inflection points coincide with their interior roots, primitives of Legendre polynomials.
Abdelhamid Rehouma
doaj   +3 more sources

The generalized associated Legendre functions [PDF]

open access: yes, 2001
Mathematics Subject Classification: 33C60, 33C20, 44A15This paper is devoted to an important case of Wright’s hypergeometric function 2Fτ,β1(a, b; c; z) = 2Fτ,β1(z), to studying its basic properties and to application of 2Fτ,β1(z) to the generalization ...
Virchenko, Nina, Rumiantseva, Olena
openaire   +3 more sources

An optimal control approach for solving an inverse heat source problem applying shifted Legendre polynomials [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2023
This study addresses the inverse issue of identifying the space-dependent heat source of the heat equation, which is stated using the optimal con-trol framework.
T. Shojaeizadeh, M. Darehmiraki
doaj   +1 more source

Multi-integral representations for Jacobi functions of the first and second kind

open access: yesArab Journal of Basic and Applied Sciences, 2023
One may consider the generalization of Jacobi polynomials and the Jacobi function of the second kind to a general function where the degree is allowed to be a complex number instead of a non-negative integer.
Howard S. Cohl, Roberto S. Costas-Santos
doaj   +1 more source

Two New Integral Transforms and Their Applications [PDF]

open access: yes, 1972
This thesis is in two parts. In Part I the independent variable θ in the trigonometric form of Legendre's equation is extended to the range ( -∞, ∞).
Newhall, X X (Nicholas)
core   +1 more source

Stability of Traveling Waves Based upon the Evans Function and Legendre Polynomials

open access: yesApplied Sciences, 2020
One of the tools and techniques concerned with the stability of nonlinear waves is the Evans function which is an analytic function whose zeros give the eigenvalues of the linearized operator.
H. M. Srivastava   +2 more
doaj   +1 more source

Evaluation of hierarchical vector basis functions for quadrilateral cells [PDF]

open access: yes, 2011
New hierarchical vector basis functions for quadrilateral cells are introduced, and the matrix condition numbers associated with their use are compared to those of existing vector basis families to assess the relative linear independence of the functions.
Peterson A. F.   +4 more
core   +1 more source

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