Semi-analytic solution to the N -boson problem with zero-range interactions

the algorithm for solving the inverse numerical range problem

برد عددی ماتریس مربعی a را با w(a) نشان داده و به این صورت تعریف می کنیم w(a)={x8ax:x ?s1} ، که در آن s1 گوی واحد است. در سال 2009، راسل کاردن مساله برد عددی معکوس را به این صورت مطرح کرده است : برای نقطه z?w(a)، بردار x?s1 را به گونه ای می یابیم که z=x*ax، در این پایان نامه ، الگوریتمی برای حل مساله برد عددی معکوس ارانه می دهیم.

Semi-analytic solution for thermoelastic problem with cubic anisotropy

In this paper, a semi-analytic thermal stress computation for single crystals with cubic anisotropy is developed, by introducing a new anisotropic factor. Based on a suitable splitting of the differential operators, a convergence series for general elasticity problem with cubic anisotropy is derived. Each term of the series is related to an isotropic elasticity problem. Using the analytic solut...

Application of semi-analytic method to compute the moments for solution of logistic model

The population growth, is increase in the number of individuals in population and it depends on some random environment effects. There are several different mathematical models for population growth. These models are suitable tool to predict future population growth. One of these models is logistic model. In this paper, by using Feynman-Kac formula, the Adomian decomposition method is applied to ...

A Solution to the Nonvanishing Semi- Character Extension Problem

Simulating structure formation with N-Body and semi-analytic models

In this chapter I explain the motivations and objectives of this thesis, and provide an outline of the following chapters. Over the past decades, a number of observational tests have converged to establish the cold dark matter model with its concordance set of parameters ( ΛCDM ) as the standard model for structure formation. In our Universe, the total energy density is close to the critical de...