Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Dumitru Opris"'
Publikováno v:
Nonlinear Analysis, Vol 16, Iss 2 (2011)
This paper is concerned with the deterministic and the stochastic delayed Kaldor–Kalecki nonlinear business cycle models of the income. They will take into consideration the investment demand in the form suggested by Rodano. The existence of the Ho
Externí odkaz:
https://doaj.org/article/f60c8118934e462b816bafbdfac22d2e
Autor:
Oana, Chis, Dumitru, Opris
In this work we present a new approach on studying dynamical systems. Combining the two ways of expressing the uncertainty, using probabilistic theory and credibility theory, we have research the generalized fractional hybrid equations. We have intro
Externí odkaz:
http://arxiv.org/abs/0909.2720
Autor:
Oana, Chis, Dumitru, Opris
In this paper we established the condition for a curve to satisfy stochas- tic fractional HP (Hamilton-Pontryagin) equations. These equations are described using It^o integral. We have also considered the case of stochastic fractional Hamiltonian equ
Externí odkaz:
http://arxiv.org/abs/0906.4510
Publikováno v:
Economic Record. 89:99-111
This study explores the stability of the stationary state for a dynamic growth model with wealth and human capital accumulation. Knowledge is created through research and learning-by-doing, while the time allocation between labour and leisure is endo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cfa84b460fdb5c82c1dc04eb3617462
https://doi.org/10.1111/1475-4932.12017
https://doi.org/10.1111/1475-4932.12017
Publikováno v:
International Journal of Geometric Methods in Modern Physics. :1181-1192
The main purpose of this paper is to investigate the fractional differential systems associated to dynamics of the rigid body on the Lie group SO(2,1) in terms of fractional Caputo derivatives.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c7ac96d22701153988c9da5f4dc49df
https://doi.org/10.1142/s0219887809004168
https://doi.org/10.1142/s0219887809004168
Autor:
Dumitru Opris, Loretti Dobrescu
Publikováno v:
Chaos, Solitons & Fractals. 41:2405-2413
The present work will focus on a Kaldor–Kalecki nonlinear business cycle model in income and capital, with discrete time and delay argument characteristics. What it will state, considering an investment function similar to the one proposed by Rodan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cedcc3ff8cccc1d8489646d30c6367d
https://doi.org/10.1016/j.chaos.2008.09.022
https://doi.org/10.1016/j.chaos.2008.09.022
Autor:
Dumitru Opris, Loretti Dobrescu
Publikováno v:
Chaos, Solitons & Fractals. 40:2462-2468
We consider a discrete-delay time, Kaldor nonlinear business cycle model in income and capital. Given an investment function, resembling the one discussed by Rodano, we use the linear approximation analysis to state the local stability property and l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::426be146426975c863c334da068d1209
https://doi.org/10.1016/j.chaos.2007.10.044
https://doi.org/10.1016/j.chaos.2007.10.044
Publikováno v:
Chaos, Solitons & Fractals. 34:519-530
The paper investigates the impact of delayed tax revenues on the fiscal policy out-comes. Choosing the delay as a bifurcation parameter we study the direction and the stability of the bifurcating periodic solutions. We show when the system is stable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbb405fdf978661f7ad451fc081d167a
https://doi.org/10.1016/j.chaos.2006.03.052
https://doi.org/10.1016/j.chaos.2006.03.052
Publikováno v:
Chaos, Solitons and Fractals
Chaos, Solitons and Fractals, Elsevier, 2006, 27 (4), pp.1091-1107. ⟨10.1016/j.chaos.2005.04.083⟩
Chaos, Solitons and Fractals, Elsevier, 2006, 27 (4), pp.1091-1107. ⟨10.1016/j.chaos.2005.04.083⟩
International audience; This paper is devoted to the study of the stability of limit cycles of a nonlinear delay differential equation with a distributed delay. The equation arises from a model of population dynamics describing the evolution of a plu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e46788f5de10ea77b4df63f3c5851130
https://doi.org/10.1016/j.chaos.2005.04.083
https://doi.org/10.1016/j.chaos.2005.04.083
Autor:
Dumitru Opris, I. D. Albu
Publikováno v:
Czechoslovak Mathematical Journal. 48:395-412
We present some geometrical aspects of a higher-order jet bundle which is considered a suitable framework for the study of higher-order dynamics in continuous media. We generalize some results obtained by A. Vondra, [7]. These results lead to a descr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17ed0c40d21c5a6eeaa07c7335811893
https://doi.org/10.1023/a:1022415508875
https://doi.org/10.1023/a:1022415508875