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Search Results: 1 - 10 of 73 matches for " Mykhaylo Yuriyovych "
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Foreign capital in the banking market of Ukraine
Podchesova, Valeriya Yuriyivna,Sydorenko, Mykhaylo Yuriyovych
Socìal?no-ekonomì?nì Problemì ì Der?ava , 2012,
Abstract: This article deals with foreign banks’ activity in Ukraine. Their motivation andfactors influencing the final decision on entering the new market were viewed. Fumerous potentialpositive or negative consequences of foreign banks’ expansion for the national bank’s market,consumers and economic sectors were examined. The activity’s dynamics, allocation of overseasbanks’ capital depending on the country of origin, their prospects and problems of furtherdevelopment in the Ukrainian banking market were analyzed. Changes in foreign banks’ strategyand tactics under global financial crisis conditions were paid special attention to: decreasing ofwest capital banks’ number in certain banking market’s segments or even absolute secede a varietyof banking companies from the market. Ways of improvement of native banking system activityproviding both the development of Ukrainian economy and foreign investors’ interests wereproposed.
Administration of state sector: problems and prospects
Rudchenko, Oleksandr Yuriyovych,Shkilnyak, Mykhaylo Mykhaylovych
Socìal?no-ekonomì?nì Problemì ì Der?ava , 2011,
Abstract: Authors investigated separate problems of administration of economics state sector and settled steps concerning its improvement. In the article, were examined peculiarities of administration models of state sector, it condition and main drawbacks were analyzed.
Intersectoral balance model as a tool to assess the impact of small businesses in economic development
Pyvovarov, Mykhaylo
Socìal?no-ekonomì?nì Problemì ì Der?ava , 2012,
Abstract: Based on the costs-output economic mathematical model, the article offers a new method to assess the influence of small business on changes in a country’s GDP. The method uses the annual statistics report data which allows assessing the GDP growth rate compared to the increase in the number of small businesses, their output and improved microeconomic indices.
Problems in nomenclature and systematics in the subfamily kalanchoideae (Crassulaceae) over the years
Mykhaylo Chernetskyy
Acta Agrobotanica , 2011, DOI: 10.5586/aa.2011.047
Abstract: Ambiguity concerning the systematics and nomenclature of the subfamily Kalanchoideae has been observed in the family Crassulaceae. In the history of research on representatives of the above-mentioned systematic group, there have been two opposing viewpoints aiming at either the establishment of separate genera Bryophyllum, Kalancho and Kitchingia or combining all the species into one genus Kalancho divided into subgenera (Bryophyllum, Calophygia, Kalancho ) or sections (Bryophyllum, Kalancho (Eukalancho ) and Kitchingia or Bryophyllum, and Kalancho . According to the analysis of various morphological, anatomical, embryological, karyological, phytogeographical, molecular genetics researches, it is challenging to establish the three genera in the subfamily Kalanchoideae due to the existence of intermediate species. Taking also into account the results of his own research, the author of the present work postulates that the most appropriate taxonomic approach is to recognize one genus Kalancho with the division into three sections: Bryophyllum, Kalancho and Kitchingia. The names of two of these sections correspond with the previously adopted names of the genera, thus referring to the initial stages of research concerning this subfamily.
Functional sequences and series (in Ukrainian)
Mykhaylo Sukhorolsky
Physics , 2011,
Abstract: The theory of the functional sequences and series is presented; uniformly convergent, convergent in the sense of a mean square and weakly convergent sequences and series are considered. Sequential approach to constructing generalized methods of series summarizing and generalized solutions of the problems of mathematical physics is developed
A proof of the rooted tree alternative conjecture
Mykhaylo Tyomkyn
Mathematics , 2008,
Abstract: Bonato and Tardif conjectured that the number of isomorphism classes of trees mutually embeddable with a given tree T is either 1 or infinite. We prove the analogue of their conjecture for rooted trees. We also discuss the original conjecture for locally finite trees and state some new conjectures.
A locally finite tree that behaves like an infinite star
Mykhaylo Tyomkyn
Mathematics , 2008,
Abstract: We construct a tree T of maximal degree 3 with infinitely many leaves such that whenever finitely many of them are removed, the remaining tree is isomorphic to T. In this sense T resembles an infinite star.
An improved bound for the Manickam-Miklós-Singhi conjecture
Mykhaylo Tyomkyn
Mathematics , 2010,
Abstract: We show that for $n>k(4e\log k)^k$ every set $\{x_1,..., x_n\}$ of $n$ real numbers with $\sum_{i=0}^{n}x_i \geq 0$ has at least $\binom{n-1}{k-1}$ $k$-element subsets of a non-negative sum. This is a substantial improvement on the best previously known bound of $n>(k-1)(k^k+k^2)+k$, proved by Manickam and Mikl\'os \cite{MM} in 1987.
Metastability in the generalized Hopfield model with finitely many patterns
Mykhaylo Shkolnikov
Mathematics , 2009,
Abstract: This paper continues the study of metastable behaviour in disordered mean field models initiated in [2], [3]. We consider the generalized Hopfield model with finitely many independent patterns $\xi_1,...,\xi_p$ where the patterns have i.i.d. components and follow discrete distributions on $[-1,1]$. We show that metastable behaviour occurs and provide sharp asymptotics on metastable exit times and the corresponding capacities. We apply the potential theoretic approach developed by Bovier et al. in the space of appropriate order parameters and use an analysis of the discrete Laplacian to obtain lower bounds on capacities. Moreover, we include the possibility of multiple saddle points with the same value of the rate function and the case that the energy surface is degenerate around critical points.
On a non-linear transformation between Brownian martingales
Mykhaylo Shkolnikov
Mathematics , 2012,
Abstract: The paper studies a non-linear transformation between Brownian martingales, which is given by the inverse of the pricing operator in the mathematical finance terminology. Subsequently, the solvability of systems of equations corresponding to such transformations is investigated. The latter give rise to novel monotone pathwise couplings of an arbitrary number of certain diffusion processes with varying diffusion coefficients. In the case that there is an uncountable number of these diffusion processes and that the index set is an interval such couplings can be viewed as models for the growth of one-dimensional random surfaces. With this motivation in mind, we derive the appropriate stochastic partial differential equations for the growth of such surfaces.
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