Results 241 to 250 of about 7,358,373 (294)
Some of the next articles are maybe not open access.
A series solution for the GVψ0 term of the Born series
Applied Mathematics and Computation, 1994A series representation for the function \(B(k, r):= \frac{i} {2k} \int_{-\infty}^\infty e^{ik|r- r'|} V(r') e^{ik r'} d r'\) is presented, where \(V\) arises as a potential in the differential equation (1) \((\frac{\partial^2} {\partial r^2}+ k^2)\psi (k, r)= V(r)\psi(k, r)\). The function \(B\) represents the second term of the Born series giving the
openaire +1 more source
2014
In Chap.6 it is shown how power series techniques can be used to represent the solution of scalar first- and second-order differential equations. Special attention is paid to Legendre’s equation, Bessel’s equation, and the hypergeometric equation since these equations often occur in the applications.
Martin Hermann, Masoud Saravi
openaire +1 more source
In Chap.6 it is shown how power series techniques can be used to represent the solution of scalar first- and second-order differential equations. Special attention is paid to Legendre’s equation, Bessel’s equation, and the hypergeometric equation since these equations often occur in the applications.
Martin Hermann, Masoud Saravi
openaire +1 more source
2019
Generally, second-order differential equations with variable coefficients cannot be solved in terms of the known functions. However, there is a fairly large class of differential equations whose solutions can be expressed either in terms of power series, or as simple combination of power series and elementary functions [1, 2, 3].
Ravi P. Agarwal +2 more
openaire +1 more source
Generally, second-order differential equations with variable coefficients cannot be solved in terms of the known functions. However, there is a fairly large class of differential equations whose solutions can be expressed either in terms of power series, or as simple combination of power series and elementary functions [1, 2, 3].
Ravi P. Agarwal +2 more
openaire +1 more source
Series solution to the Thomas–Fermi equation
Physics Letters A, 2007zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Khan, Hina, Xu, Hang
openaire +2 more sources
Power Series Solutions of ODEs and Frobenius Series
2001This chapter is devoted to the research of approximate solutions of nonlinear differential equations because for this kind of equation, it is exceptional to find the exact solutions. On the other hand, in the applications, it may be more useful to have an approximate solution with a simple form than an exact one with a very complex expression.
Addolorata Marasco, Antonio Romano
openaire +1 more source
2016
In this chapter we describe the series solution method for generalized Volterra integral equations and generalized Volterra integro-differential equations.
openaire +1 more source
In this chapter we describe the series solution method for generalized Volterra integral equations and generalized Volterra integro-differential equations.
openaire +1 more source
Celestial Mechanics, 1970
A means of extending the radius of convergence of a power series solution of a system of differential equations is presented. It is essentially a change of the independent variable by means of a conformal mapping. Conditions on this change of variables which should yield a computational advantage are discussed.
openaire +1 more source
A means of extending the radius of convergence of a power series solution of a system of differential equations is presented. It is essentially a change of the independent variable by means of a conformal mapping. Conditions on this change of variables which should yield a computational advantage are discussed.
openaire +1 more source
Solutions to a Problem in Power Series Reversion
SIAM Journal on Mathematical Analysis, 1975This paper presents the general solution of the following problem in two forms.Let $f(x,y)$ be defined by the formal power series $f(x,y) = \sum _{m = 0}^\infty \sum _{n = 0}^\infty f_{mn} x^m y^n $ with $f_{00} \ne 0$. If v satisfies $v(x,y) = f(xv^a ,yv^b )$, where a and b are constants, then find the formal power series expansion of $v^c(x,y ...
Goldstein, A. J., Hall, A. D.
openaire +2 more sources
A Method of Accelerating the Convergence of Series Solutions
Journal of the Franklin Institute, 1986The series solutions obtained for transport problems may fail to converge at the boundary if the problem involves non-homogeneities due to the boundary conditions. The authors develop a general splitting-up procedure for obtaining alternative solutions which accelerate the convergence.
Mikhailov, M. D., Özişik, M. N.
openaire +1 more source
2016
In this chapter, the Separation of Variables method is used to find a solution to the finite cable equation. The cable is subjected to an impulse of current at some location on the cable itself and the corresponding solution must be written as an infinite series in terms of what are called Fourier sin and cosine series.
openaire +1 more source
In this chapter, the Separation of Variables method is used to find a solution to the finite cable equation. The cable is subjected to an impulse of current at some location on the cable itself and the corresponding solution must be written as an infinite series in terms of what are called Fourier sin and cosine series.
openaire +1 more source

