Zobrazeno 1 - 10
of 2 416
pro vyhledávání: '"DIMA, L."'
Autor:
Frahm, Klaus M., Shepelyansky, Dima L.
We analyze the Google matrix of directed networks of Wikipedia articles related to 8 recent Wikipedia language editions representing different cultures (English, Arabic, German, Spanish, French, Italian, Russian, Chinese). Using the reduced Google ma
Externí odkaz:
http://arxiv.org/abs/2412.03285
Publikováno v:
Information (MDPI) 15(9), 571 (2024)
We introduce the Ising Network Opinion Formation (INOF) model and apply it for the analysis of networks of 6 Wikipedia language editions. In the model, Ising spins are placed at network nodes/articles and the steady-state opinion polarization of spin
Externí odkaz:
http://arxiv.org/abs/2408.07606
Autor:
Frahm, Klaus M., Shepelyansky, Dima L.
Publikováno v:
Phys. Rev. E 109, 044201 (2024)
We introduce and study a random matrix model of Kolmogorov-Zakharov turbulence in a nonlinear purely dynamical finite size system with many degrees of freedom. For the case of a direct cascade the energy and norm pumping takes place at low energy sca
Externí odkaz:
http://arxiv.org/abs/2401.11545
Publikováno v:
Coquid\'{e} C., Lages J. and Shepelyansky D.L., Opinion formation in the world trade network. Entropy 2024, 26(2), 141
We extend the opinion formation approach to probe the world influence of economical organizations. Our opinion formation model mimics a battle between currencies within the international trade network. Based on the United Nations Comtrade database, w
Externí odkaz:
http://arxiv.org/abs/2401.02378
Autor:
Frahm, Klaus M., Shepelyansky, Dima L.
We consider a model of an intelligent surfer moving on the Ulam network generated by a chaotic dynamics in the Chirikov standard map. This directed network is obtained by the Ulam method with a division of the phase space in cells of fixed size formi
Externí odkaz:
http://arxiv.org/abs/2307.00019
Publikováno v:
Coquid`{e}, C., Lages, J. & Shepelyansky, D.L. Prospects of BRICS currency dominance in international trade. Appl Netw Sci 8, 65 (2023)
During his state visit to China in April 2023, Brazilian President Lula proposed the creation of a trade currency supported by the BRICS countries. Using the United Nations Comtrade database, providing the frame of the world trade network associated
Externí odkaz:
http://arxiv.org/abs/2305.00585
Autor:
Frahm, Klaus M., Shepelyansky, Dima L.
We consider a system of linear oscillators, or quantum states, described by Random Matrix Theory and analyze how its time evolution is affected by a nonlinear perturbation. Our numerical results show that above a certain chaos border a weak or modera
Externí odkaz:
http://arxiv.org/abs/2212.11955
Publikováno v:
Entropy 2023, 25(2), 373
From the Bretton Woods agreement in 1944 till the present day, the US dollar has been the dominant currency in the world trade. However, the rise of the Chinese economy led recently to the emergence of trade transactions in Chinese yuan. Here, we ana
Externí odkaz:
http://arxiv.org/abs/2211.07180
Autor:
Frahm, Klaus M., Shepelyansky, Dima L.
Publikováno v:
Eur. Phys. J. B (2022)95:187
We study numerically, in the framework of the Cooper approach from 1956, mechanisms of pair formation in a model of La-based cuprate superconductors with longer-ranged hopping parameters reported in the literature at different values of center of mas
Externí odkaz:
http://arxiv.org/abs/2209.09057
Autor:
Chepelianskii, Alexei D.1 (AUTHOR), Shepelyansky, Dima L.2 (AUTHOR) dima@irsamc.ups-tlse.fr
Publikováno v:
Entropy. May2024, Vol. 26 Issue 5, p415. 26p.
