Results 1 to 10 of about 18 (16)

On study of fractional order epidemic model of COVID-19 under non-singular Mittag-Leffler kernel. [PDF]

open access: yesResults Phys, 2021
This paper investigates the analysis of the fraction mathematical model of the novel coronavirus (COVID-19), which is indeed a source of threat all over the globe.
Alzaid SS, Alkahtani BST.
europepmc   +2 more sources

Investigation of fractal-fractional order model of COVID-19 in Pakistan under Atangana-Baleanu Caputo (ABC) derivative. [PDF]

open access: yesResults Phys, 2021
This manuscript addressing the dynamics of fractal-fractional type modified SEIR model under Atangana-Baleanu Caputo (ABC) derivative of fractional order y and fractal dimension p for the available data in Pakistan.
Arfan M   +7 more
europepmc   +2 more sources

Low complexity subshifts have discrete spectrum

open access: yesForum of Mathematics, Sigma, 2023
We prove results about subshifts with linear (word) complexity, meaning that $\limsup \frac {p(n)}{n} < \infty $ , where for every n, $p(n)$ is the number of n-letter words appearing in sequences in the subshift.
Darren Creutz, Ronnie Pavlov
doaj   +1 more source

Theoretical analysis and computational modeling of nonlinear fractional-order victim-two predators model

open access: yesResults in Physics, 2022
The victim-predator model has been investigated in several papers in the literature since it is considered one of the very important models. The relation between predator and victim is an important aspect of ecology. The principal object of this research
M. Higazy   +4 more
doaj   +1 more source

Chaotic tracial dynamics

open access: yesForum of Mathematics, Sigma, 2023
The action on the trace space induced by a generic automorphism of a suitable finite classifiable ${\mathrm {C}^*}$ -algebra is shown to be chaotic and weakly mixing.
Bhishan Jacelon
doaj   +1 more source

Thermalization in Kitaev’s quantum double models via tensor network techniques

open access: yesForum of Mathematics, Sigma, 2023
We show that every ergodic Davies generator associated to any 2D Kitaev’s quantum double model has a nonvanishing spectral gap in the thermodynamic limit.
Angelo Lucia   +2 more
doaj   +1 more source

On modelling of epidemic childhood diseases with the Caputo-Fabrizio derivative by using the Laplace Adomian decomposition method

open access: yesAlexandria Engineering Journal, 2020
We present a fractional-order epidemic model for childhood diseases with the new fractional derivative approach proposed by Caputo and Fabrizio. By applying the Laplace Adomian decomposition method (LADM), we solve the problem and the solutions are ...
Dumitru Baleanu   +3 more
doaj   +1 more source

On the application of ergodic theory to alternating Engel series

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 25, Issue 12, Page 813-819, 2001., 2001
We investigate the ergodic behaviour of the basic operator which generates the modified Engel‐type alternating series representations of any number in (0, 1] in terms of rationals.
C. Ganatsiou
wiley   +1 more source

Ergodicity of stochastically forced large scale geophysical flows

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 28, Issue 6, Page 313-320, 2001., 2001
We investigate the ergodicity of 2D large scale quasigeostrophic flows under random wind forcing. We show that the quasigeostrophic flows are ergodic under suitable conditions on the random forcing and on the fluid domain, and under no restrictions on viscosity, Ekman constant or Coriolis parameter.
Jinqiao Duan, Beniamin Goldys
wiley   +1 more source

About the existence of the thermodynamic limit for some deterministic sequences of the unit circle

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 24, Issue 12, Page 857-863, 2000., 2000
We show that in the set Ω=ℝ+×(1,+∞)⊂ℝ+2, endowed with the usual Lebesgue measure, for almost all (h, λ) ∈ Ω the limit limn→+∞(1/n)ln|h(λn−λ−n)mod[-12,12)| exists and is equal to zero. The result is related to a characterization of relaxation to equilibrium in mixing automorphisms of the two‐torus.
Stefano Siboni
wiley   +1 more source

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