An important factor for a successful privatization program and the quality of the institutional environment in the country. In countries where there is an institutional basis, privatization was associated with significant further improvement of institutional quality, and strengthening the regulatory structure. The basic premise of a successful privatization and the respect for legal rules. Counterbalance this positive development is an indication that in countries with poor institutional quality at an entry level of privatization, the formal institutions of government have not been developed and the underdeveloped institutions difficult to sustain.
Privatization has had a significant impact on the development of stock markets around the world. World Bank study on the stock market in transition countries shows that privatization policy, which is aimed at the development of formal institutions and corporate governance which prescribed for companies listing on the stock exchange as a mandatory segment of the privatization process, has failed to develop the capital market. In countries that have carried out the mass voucher privatization, many of the actions were insolvent, regulators and exchanges are not able to monitor listing standards. These problems have resulted in a significant delisting of shares, reports on the abuse of minority shareholders and the subsequent concentration of ownership and control. After the initial increase in the number of listed companies, there was a reduction in the number of companies that are listed in the stock market. The method of privatization through initial public offerings, despite selling fewer shares, managed to secure a stable development trend of the stock market.

An associative ring R with identity is called strongly f-clean if every element of R is the sum of an idempotent and a full element which commute. In this paper, we introduce the concept of uniquely strongly f-clean rings which are the generalization of strongly f-clean rings. Some properties of this generalization are established, and connection of uniquely strongly f-clean
rings and uniquely clean rings are investigated. We also prove that the direct product of rings preserves the uniquely strongly f-clean structure. We study the relationship between uniquely strongly f-clean rings and the ideal extension of them. Let G be a group and RG be a group ring over R. We determine
conditions under which the group ring RG is uniquely strongly f-clean.

In this paper, we study Lipschitz continuous, boundedness and the
compactness of superposition operator between some hyperbolic function spaes.

Let k be an algebraically closed field of characteristic zero, R an affine k-algebra and let Ω(q)(R/k) denote its universal finite K¨ahler module of differentials over k. In this paper, we consider the tensor,exterior and symmetric algebras of K¨ahler modules introduced by H.Osborn [9]. We explore some interesting properties of the algebras of K¨ahler modules, which have not been considered before.

Evidence theory or Dempster–Shafer theory is a generalization of the Bayesian theory of subjective probability. In this formalism the best representation of chance is a belief function rather than a Bayesian mass distribution. It allows one to combine evidence from different sources and arrive at a degree of belief that takes into account all the available evidence. This paper introduces an extended interpretation of evidence theory where it seems particularly important to be able to provide accurate assessments of the beliefs with which negative evidence occurs so as to guide rational choice of preventative decisions. In this work, the mathematical theory of Dempster-Shafer is developed allowing negative beliefs. The extended belief, plausibility and the probability mass functions are defined, giving axioms and deriving their general properties and theorems. Moreover, the definitions of extended ignorance, doubt, commonality functions and the combination between evidences are investigated.