Results 41 to 50 of about 162,453 (80)

Norm-preserving L−L integral transformations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
In this paper we consider an L−L integral transformation G of the form F(x)=∫0∞G(x,y)f(y)dy, where G(x,y) is defined on D={(x,y):x≥0,y≥0} and f(y) is defined on [0,∞).
Yu Chuen Wei
doaj   +1 more source

The Compound Binomial Risk Model with Randomly Charging Premiums and Paying Dividends to Shareholders

open access: yesJournal of Applied Mathematics, 2013
Based on characteristics of the nonlife joint-stock insurance company, this paper presents a compound binomial risk model that randomizes the premium income on unit time and sets the threshold for paying dividends to shareholders.
Xiong Wang, Lei He
doaj   +1 more source

Modeling Optimal Scheduling for Pumping System to Minimize Operation Cost and Enhance Operation Reliability

open access: yesJournal of Applied Mathematics, 2012
Traditional pump scheduling models neglect the operation reliability which directly relates with the unscheduled maintenance cost and the wear cost during the operation.
Yin Luo   +4 more
doaj   +1 more source

Hyperstability of the Drygas Functional Equation

open access: yesJournal of Function Spaces and Applications, 2013
We use the fixed point theorem for functional spaces to obtain the hyperstability result for the Drygas functional equation on a restricted domain. Namely, we show that a function satisfying the Drygas equation approximately must be exactly the solution ...
Magdalena Piszczek, Joanna Szczawińska
doaj   +1 more source

Existence and Stability Estimate for the Solution of the Ageing Hereditary Linear Viscoelasticity Problem

open access: yesAbstract and Applied Analysis, 2009
The paper is concerned with the existence and stability of weak (variational) solutions for the problem of the quasistatic evolution of a viscoelastic material under mixed inhomogenous Dirichlet-Neumann boundary conditions.
Julia Orlik
doaj   +1 more source

Inner composition of analytic mappings on the unit disk

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
A basic theorem of iteration theory (Henrici [6]) states that f analytic on the interior of the closed unit disk D and continuous on D with Int(D)f(D) carries any point z ϵ D to the unique fixed point α ϵ D of f. That is to say, fn(z)→α as n→∞.
John Gill
doaj   +1 more source

Some generating functions of Laguerre polynomials

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
In this note a class of interesting generating relation, which is stated in the form of theorem, involving Laguerre polynomials is derived. Some applications of the theorem are also given here.
Bidyut Kumar Guha Thakurta
doaj   +1 more source

Prestarlike functions with negative coefficients

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1979
The extreme points for prestarlike functions having negative coefficients are determined. Coefficient, distortion and radii of univalence, starlikeness, and convexity theorems are also obtained.
H. Silverman, E. M. Silvia
doaj   +1 more source

Flow and Heat Transfer in a Liquid Film over a Permeable Stretching Sheet

open access: yesJournal of Applied Mathematics, 2013
An analysis has been carried out to study the flow and heat transfer in a liquid film over a permeable stretching sheet. Using similarity transformations, the time-dependent boundary layer equations are reduced to a set of nonlinear ordinary differential
R. C. Aziz, I. Hashim, A. K. Alomari
doaj   +1 more source

Multiscale KF Algorithm for Strong Fractional Noise Interference Suppression in Discrete-Time UWB Systems

open access: yesDiscrete Dynamics in Nature and Society, 2011
In order to suppress the interference of the strong fractional noise signal in discrete-time ultrawideband (UWB) systems, this paper presents a new UWB multi-scale Kalman filter (KF) algorithm for the interference suppression.
Liyun Su   +4 more
doaj   +1 more source

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