Metrica and first integrals of geodesic equations of 6-dimensional h-spaces of types [3(21)], [(32)1], [(321)]

Themetric of six-dimensional h-spaces of types [3(21)], [(32)1], [(321)] is found, and the quadratic first integrals of geodesic equations in these h-spaces are determined. © 2011 Allerton Press, Inc

Integrative connection of mathematics and economics

© 2016 Zakirova and Shilova.The relevance of the problem stated in the article is due to the fact that there is a great variety of statistical methods now. The survey of the peculiarities of statistical methods indicates the wide possibility of applying the methods and stages of the correlation and regression analysis when building a model. The significance of the specification stage when building the regression model is determined, its theoretical basis and essence are described. One of the important aspects of the specification stage is the selection of the most significant variables (factors). The purpose of the article is to create and prove the model of integration of general and special economic disciplines with mathematics, to suggest the algorithm of the selection of factors at the specification stage of building the regression model in the framework of the application of integrative intersubject connections. The leading approach to the study of this issue is the method of formation of professional competence of future economists through the application of mathematical methods and models, knowledge and skills, which, in turn, provides the development of basic economic knowledge and skills. In the article we developed the method of solving the problem of application of mathematical statistics methods in building the econometric models in the framework of integration of intersubject connections, and we suggested the algorithm of selection of variables for building the effective regression model, which contributes to the conscious selection of the factors in the model and ensures the accuracy of real trends of the model and the model assessments, the obtainment of adequate forecast results

Control of electrochemical dimensional processing on the basis of synergy of controllable factors

© Published under licence by IOP Publishing Ltd. The article considers the factors that influence the electrochemical dimensional processing, which have synergistic connections. It is revealed that the size of the interelectrode gap is of great importance for ensuring the quality of processing, and methods for adjusting the gap during processing are proposed

The municipal reform in the second half of the nineteenth century: The prussian election system and its russian version

The main postulates of the three-category election system were implemented as they were adopted by the municipal reform of 1870. The law basis of revealed and main stages of its implementation is manifested. The comparative analysis reveals the ratio between the election group and the number of urban population, the electorate activity of voters is demonstrated. The Prussian tree-category system is shown and its adaptation to the Russian reality. The linguistic and cultural features are considered and the foundation of application of the terminology apparatus is treated © IDOSI Publications, 2013

Comment on integrability in Dijkgraaf-Vafa β-ensembles

We briefly discuss the recent claims that the ordinary KP/Toda integrability, which is a characteristic property of ordinary eigenvalue matrix models, persists also for the Dijkgraaf-Vafa (DV) partition functions and for the refined topological vertex. We emphasize that in both cases what is meant is a particular representation of partition functions: a peculiar sum over all DV phases in the first case and hiding the deformation parameters in a sophisticated potential in the second case, i.e. essentially a reformulation of some questions in the new theory in the language of the old one. It is at best obscure if this treatment can be made consistent with the AGT relations and even with the quantization of the underlying integrable systems in the Nekrasov-Shatashvili limit, which seem to require a full-scale . β-deformation of individual DV partition functions. Thus, it is unclear if the story of integrability is indeed closed by these recent considerations. © 2012 Elsevier B.V

Management of processes of electrochemical dimensional processing

© Published under licence by IOP Publishing Ltd. In different industries a lot high-precision parts are produced from hard-processed scarce materials. Forming such details can only be acting during non-contact processing, or a minimum of effort, and doable by the use, for example, of electro-chemical processing. At the present stage of development of metal working processes are important management issues electrochemical machining and its automation. This article provides some indicators and factors of electrochemical machining process

The analysis and selection of methods and facilities for cutting of naturally-deficit materials

The comparison of perspective methods is done in the article, such as laser, plasma and combined electro-diamond methods of hard processed materials cutting. There are the review and analysis of naturally-deficit materials cutting facilities. A new electrode-tool for the combined cutting of naturally-deficit materials is suggested. This electrode-tool eliminates electrical contact between the cutting electrode-tool and side surfaces of the channel of cutting workpiece cut, which allows to obtain coplanar channels of cut

Management aspects of production cost accounting in horse breeding

© 2015, Asian Social Science. All rights reserved. The particular management accounting lines are considered in the present paper, based on the state and current practice of production cost accounting study and calculation of production cost of horse breeding in the analyzed companies, to help the enterprise management in making reasonable decisions regarding maintenance of cost management in the given industry. The criteria of breakeven point, marginal income, and safety edge can be used for production planning, decision-making on pricing for prediction of enterprise development, in particular, the selection of efficient management strategy of benefits and costs. Having analyzed the possible strategies in management of benefits, costs, one can determine the best options for management decisions (increase of price and sales volume of koumiss)