European Physical Journal-special Topics
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2.71
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3,415
Papers 3,841
1 page of 385 pages (3,841 results)
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#1Zhen WangH-Index: 14
#2Sajjad Shaukat Jamal (King Khalid University)H-Index: 12
Last. Viet-Thanh Pham (Ton Duc Thang University)H-Index: 52
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It is almost more than a year that earth has faced a severe worldwide problem called COVID-19. In December 2019, the origin of the epidemic was found in China. After that, this contagious virus was reported almost all over the world with different variants. Besides all the healthcare system attempts, quarantine, and vaccination, it is needed to study the dynamical behavior of this disease specifically. One of the practical tools that may help scientists analyze the dynamical behavior of epidemic...
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#1Sayan MukherjeeH-Index: 59
#2N. A. A. Fataf (National Defence University of Malaysia)H-Index: 5
Last. Hayder NatiqH-Index: 9
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In this article, noise induced chaos is investigated for a finance system. To characterize chaotic paradigm, period analysis is done with the variation of a parameter and noise strength. Later on, chaos has been quantified by 0–1 tests under the same variation. A phase space analysis is also done to investigate the effect of noise on the system dynamics. However, we have noticed that the respective asymptotic dynamics of the deterministic and noise induced chaos are very similar. To classify cha...
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#1Hui Fu (HIT: Harbin Institute of Technology)
#2Guo-Cheng WuH-Index: 33
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A general fractional calculus is described using fractional operators with respect to another function, and some often used propositions are presented in this framework. Together with the continuous time random walk (CTRW), a general time-fractional Fokker–Planck equation is derived and the governing equation meets the general fractional derivative. Finally, various new probability density functions are proposed in this paper.
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The paper deciphers the potential of fractal analysis in unveiling the complex plasma dynamics. The light from copper plasma is focused on the slit of a spectrometer, and the spectral variations across the slit are analysed. The plasma temperature (T) computed from the spectrum at various spatial points of the slit also exhibits a variation similar to that of power spectral fractal dimension ( null null null null null null null null null null null null null null null null null null null null nul...
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#1Jieyang Wang (Dalian Polytechnic University)H-Index: 2
#2Yinghong Cao (Dalian Polytechnic University)H-Index: 1
Last. Xingce Liu (Dalian Polytechnic University)
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In this paper, the sine function memristor and the cosine function memristor are connected in series, and the constructed series memristor is numerically analyzed through its volt-ampere characteristics, and then the new memristor was introduced into the Rossler system to construct a hyperchaotic system with dual memory elements. The coexistence attractor and fractal phenomena in the system are analyzed, and the fractal dimension of the system is calculated on the basis of fractal theory. In add...
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In this study, a new variable-order fractional chaotic neural network with frequency effect is proposed based on Hopfield Neural Network Under Electromagnetic Radiation, which is used to model brain functions in the literature. The numerical solution of this proposed system is carried out by the Grunwald–Letnikov (G–L) method, and time series and phase portraits are presented. In addition, the chaotic behavior is analyzed by Lyapunov exponent analysis according to the frequency parameter used fo...
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