On Sofic Actions and Equivalence Relations

The notion of sofic equivalence relation was introduced by Gabor Elek and Gabor Lippner. Their technics employ some graph theory. Here we define this notion in a more operator algebraic context, starting from Connes' embedding problem, and prove the equivalence of this two definitions. We introduce a notion of sofic action for an arbitrary group and prove that amalgamated product of sofic actions over amenable groups is again sofic. We also prove that amalgamated product of sofic groups over an amenable subgroup is again sofic.Comment: Improved version after remark

CANCELLATION OF A LEASING CONTRACT a€“ EVALUATING THE ASSET REGAINED

The most recent financial crisis had many effects during the last year. Majority of the existing companies, worldwide, were harmfully influenced by it. More important, professions and economies were shocked by the crisis. Romania is no exception from theKeywords: Finacial crisis, financial leasing, evaluate, fair value, cancellation of a leasing contract

Book review: STRATEGIES OF INCRESING THE COMPETITIVENESS BASED ON COSTS ANALYSIS

Although the strategies of increasing the competiveness, based on costs analysis, represent a subject which is frequently approachable by economists over different complexity levels...strategies, competiveness, cost

Research in Public Relations

Research has an important role in public relations (PR) being necessary in developing strategies in this area. Therefore, we can speak of two types of research, the applied research and theoretical research, both being successfully used in the work of public relations. Applied research, can be strategic (used in programs in order to identify attitudes and opinions of the target public, to develop strategies for formulating and transmitting messages, to establish the criteria for evaluating the work) and evaluative by which it determines the communication efficiency, in carrying out the program of public relations (in fact it is the comparison between the established and achieved objectives).public relations (PR), applied research, theoretical research

On the connectivity of complex affine hypersurfaces II

We obtain sharp estimates on the connectivity of complex affine hypersurfaces in terms of the decomposition of the defining equation as a sum of weighted homogeneous components relative to some weight system.Comment: 10 pages, to appear in TOPOLOG