Nimete Berisha

• University of Prishtina

In this paper, we derive some Fourier transforms of confluent hypergeometric functions. We give generalizations of several well-known results involving Fourier transforms of gamma functions. In particular, the generalizations include some Ramanujan's remarkable formulas. 2010 Mathematics Subject Classification. 33C15, 42A38, 44A20.

This paper examines whether the ease of doing business (EDB) frontier improves economic growth (GR) by considering a sample of 47 European and Central Asian countries, clustered into lower-middle, upper-middle and high-income economies. The results show these economies have never reached the EDB frontier. The high-income economies prove to be more...

The course of mathematics becomes even more crucial for students of economics and business since its application is inevitable in many other courses of the curricula and practice as well. The instructor is required to raise the awareness of students and encourage them to develop mathematics study routine. Thus, the quality of teaching and learning...

In this paper, we give a characterization of Nikol'ski\u{\i}-Besov type classes of functions, given by integral representations of moduli of smoothness, in terms of series over the moduli of smoothness. Also, necessary and sufficient conditions in terms of monotone or lacunary Fourier coefficients for a function to belong to a such a class are give...

In this paper, we give a characterization of Nikol’skiĭ-Besov type classes of functions, given by integral representations of moduli of smoothness, in terms of series over the moduli of smoothness. Also, necessary and sufficient conditions in terms of monotone or lacunary Fourier coefficients for a function to belong to such a class are given. In o...

This paper intends to analyze the empirical linkage between current account deficits and a wide range of macroeconomic indicators. Based on the recent econometric techniques we investigate the potential determinants of current account positions in FYROM for both, the short run and long run dynamics covering the period 1998q1-2013q4. By applying the...

In this paper, for a generalised shift operator introduced earlier, we prove theorem of coincidence of classes of functions defined by the order of best approximation by algebraical polynomials and the generalised Lipschitz classes defined by the generalised shift operator.

In this paper, we give some $l_p$-type inequalities about sequences satisfying certain quasi monotone type properties. As special cases, reverse $l_p$-type inequalities for non-negative decreasing sequences are obtained. The inequalities are closely related to Copson's and Leindler's inequalities, but the sign of the inequalities is reversed.

In this paper, we give some $l_p$-type inequalities about sequences satisfying certain quasi monotone type properties. As special cases, reverse $l_p$-type inequalities for non-negative decreasing sequences are obtained. The inequalities are closely related to Copson's and Leindler's inequalities, but the sign of the inequalities is reversed.

Shadow economy is related to the issue of non-reporting and/or underreporting of market transactions by economic agents. The prevalence of shadow economy can have serious impact on economic growth as well as on income distribution in a country. Findings in the literature about the size of shadow economy in SEE countries reveal relatively high level...

The issue of financial crisis still remains a matter of concern for Western Balkan countries and Europe as a whole. In moments when the economies of these countries recover from recessions of global financial crisis, a new crisis threatens the region. Indeed, a considerable part of the financial sector of the Western Balkan countries is from the Gr...

In the present paper, we use a generalised shift operator in order to define a generalised modulus of smoothness. By its means, we define generalised Lipschitz classes of functions, and we give their constructive characteristics. Specifically, we prove certain direct and inverse types theorems in approximation theory for best approximation by algeb...

In this paper, for a generalised shift operator introduced earlier, we prove theorem of coincidence of classes of functions defined by the order of best approximation by algebraical polynomials and the generalised Lipschitz classes defined by the generalised shift operator.

In this paper, approximation by means of algebraic polynomials of classes of functions defined by a generalised modulus of smoothness of operators of differentiation of these functions is considered. We give structural characteristics of classes of functions defined by the order of best approximation by algebraic polynomials.