مرور Iranian Journal of Numerical Analysis and Optimization بر اساس تاریخ انتشار
در حال نمایش موارد 1  20 از 234

Shrinkage estimation of the regression parameters with multivariate normal errors
(20080101)In the linear model y=XB+e with the errors distributed as normal, we obtain generalized least square (GLS), restricted GLS (RGLS), preliminary test (PT), Steintype shrinkage (S) and positiverule shrinkage (PRS) estimators ...

Statistical inference based on krecords
(20080101)In this paper, an extension of record models, well known as krecords, is considered. Bayesian estimation as well as prediction based on krecords are presented when the underlying distribution is assumed to have a general ...

A numerical solution for an inverse heat conduction problem
(20080101)In this paper, we demonstrate the existence and uniqueness a semianalytical solution of an inverse heat conduction problem (IHCP) in the form: ut = uxx in the domain D = {(x, t) 0

Groups with soluble minimax conjugate classes of subgroups
(20080101)A classical result of Neumann characterizes the groups in which each subgroup has finitely many conjugates only as centralbyfinite groups. If X is a class of groups, a group G is said to have Xconjugate classes of ...

New classes of infinite groups
(20080101)In this article, we consider some new classes of groups, namely, Mpgroups, T0groups,Øgroups,Ø0groups, groups with finitely embedded involution, which were appeared at the end of twenties century. These classes of ...

On algebraic characterizations for finiteness of the dimension of EG
(20080101)Certain algebraic invariants of the integral group ring ZG of a group G were introduced and investigated in relation to the problem of extending the FarrellTate cohomology, which is defined for the class of groups of ...

Uniformly continuous 11 functions on ordered fields not mapping interior to interior
(20080101)In an earlier work we showed that for ordered fields F not isomorphic to the reals R, there are continuous 11 unctions on [0, 1]F which map some interior point to a boundary point of the image (and so are not open). Here ...

Quasipermutation Representations of Borel and Parabolic Subgroups of Steinberg's triality groups
(20090101)If G is a finite linear group of degree n, that is, a finite group of automorphisms of an ndimensional complex vector space, or equivalently, a finite group of nonsingular matrices of order n with complex coefficients, ...

Asymptotic normality of the truncation probability estimator for truncated dependent data
(20090101)In some long term studies, a series of dependent and possibly truncated lifetimes may be observed. Suppose that the lifetimes have a common marginal distribution function. In lefttruncation model, one observes data ...

The variational iteration method for solving linear and nonlinear Schrodinger equations
(20090101)In this paper, the variational iteration method proposed by JiHuan He is applied to solve both linear and nonlinear Schrodinger equations. The main property of the method is in its flexibility and ability to solve linear ...

A sufficient condition for null controllability of nonlinear control systems
(20090101)Classical control methods such as Pontryagin Maximum Principle and BangBang Principle and other methods are not usually useful for solving optimal control systems (OCS) specially optimal control of nonlinear systems ...

Asymptotic fisher information in order statistics of geometric distribution
(20090101)In this paper, the geometric distribution is considered. The means, variances, and covariances of its order statistics are derived. The Fisher information in any set of order statistics in any distribution can be represented ...

Estimation of P[Y < X] for generalized exponential distribution in presence of outlier
(20090101)This paper deals with the estimation of P(Y

Properties of groups with points
(20090101)In this paper, we consider groups with points which were introduced by V.P. Shunkov in 1990. In NovikovAdian's group, Adian's periodic products of finite groups without involutions and Olshansky's periodic monsters every ...

A level set moving mesh method in static form for one dimensional PDEs
(20130101)In this paper, we propose an adaptive mesh approach for time dependent parial differential equations, based on a socalled moving mesh PDE(MMPDE) and level set method. It means that the velocity of mesh nodes is calculated ...

Finite volume method for one dimensional biot poroelasticity system in multilayered domains
(20130101)R. Ewing, O. Liev, R. Lazarov and A. Naumovich in [1] proposed a finite volume discretization for one dimensional Biot poroelasticity system in multilayer domains. Their discretization and exact solution are invalid. We ...

On convergence of He’s variational iteration method for nonlinear partial differential equations
(20130101)This paper deals with a novel proof of convergence of He's variational iteration method applied to nonlinear partial differential equations by proposing a new formulation for this technique.

An alternative 2phase method for evaluating of DMUs using DEA
(20130101)Computationally, selection of a proper numerical value for infinitesimal non Archimedean epsilon in DEA models has some difficulties. Although there are several algorithms for selecting the proper nonArchimedean epsilon, ...

Accelerated normal and skewHermitian splitting methods for positive definite linear systems
(20130101)For solving large sparse nonHermitian positive definite linear equations, Bai et al. proposed the Hermitian and skewHermitian splitting methods (HSS). They recently generalized this technique to the normal and skewHermitian ...

BlockCoppels chaos in setvalued discrete systems
(20130101)Let (X, d) be a compact metric space and f : X → X be a continuous map. Consider the metric space (K(X),H) of all non empty compact subsets of X endowed with the Hausdorff metric induced by d. Let ¯ f : K(X) → K(X) be ...