The Behrens–Fisher problem occurs when testing the equality of means two normal distributions without assumption that variances are equal. This paper presents approaches based on exact and near-exact for test statistic problem, depending different combinations even or odd sample sizes. We present distribution both sizes one even. a finite mixture generalized integer gamma (GIG) distributions, u...

in this paper vibration of ferromagnetic rectangular plates which are subjected to an inclined magnetic field is investigated based on classical plate theory and maxwell equations. levy type solution and finite element method using comsol software are used to obtain the frequency of the plate subjected to different boundary conditions, good agreements is obtained when computed results are compa...

In this paper the notion of Rees short exact sequence for S-posets is introduced, and we investigate the conditions for which these sequences are left or right split. Unlike the case for S-acts, being right split does not imply left split. Furthermore, we present equivalent conditions of a right S-poset P for the functor Hom(P;-) to be exact.

Abstract The singularly perturbed Riccati equation is the first-order nonlinear ordinary differential $\hbar \partial _x f = af^2 + bf c$ in complex domain where $ a small parameter. We prove an existence and uniqueness theorem for exact solutions with prescribed asymptotics as \to 0$ half-plane. These are constructed using Borel–Laplace method; that is, they Borel summations of formal divergen...