Results 21 to 30 of about 10,567 (166)

Scale-Free Chaos in the 2D Harmonically Confined Vicsek Model

open access: yesEntropy, 2023
Animal motion and flocking are ubiquitous nonequilibrium phenomena that are often studied within active matter. In examples such as insect swarms, macroscopic quantities exhibit power laws with measurable critical exponents and ideas from phase ...
Rafael González-Albaladejo   +1 more
doaj   +1 more source

Critical exponents without β-function [PDF]

open access: yesPhysics Letters B, 1999
We point out that the recently developed strong-coupling theory enables us to calculate the three main critical exponents nu, eta, omega, from the knowledge of only the two renormalization constants Z_phi of wave function and Z_m of mass. The renormalization constant of the coupling strength is superfluous, and with it also the beta-function, the ...
openaire   +3 more sources

Critical exponents for diluted resistor networks [PDF]

open access: yesPhysical Review E, 1999
An approach by Stephen is used to investigate the critical properties of randomly diluted resistor networks near the percolation threshold by means of renormalized field theory. We reformulate an existing field theory by Harris and Lubensky. By a decomposition of the principal Feynman diagrams we obtain a type of diagrams which again can be interpreted
Stenull, O., Janssen, H. K., Oerding, K.
openaire   +3 more sources

Critical exponents and where to find them

open access: yesBruno Pini Mathematical Analysis Seminar, 2018
In this expository paper we present a list of different semilinear wave-type problems with time-variable coefficients. The aim of this work is to understand the influence of such coefficients on the critical exponents for polynomial nonlinearities ...
Sandra Lucente
doaj   +1 more source

Critical Exponents in Percolation Model of Track Region Critical Exponents in Percolation Model of Track Region Critical Exponents in Percolation Model of Track Region [PDF]

open access: yesЖурнал нано- та електронної фізики, 2012
Differences between critical exponents of this model and the continuous percolation model indicate that the dependence of the modified structure area on the dose and the angle related with the correlation between individual tracks.
A.B. Demchyshyn, P.O. Selyshchev
doaj  

Erratum to: On critical exponents for self-similar collapse

open access: yesJournal of High Energy Physics, 2020
The Authors order and affiliations order for author Ehsan Hatefi has been ...
Ehsan Hatefi, Riccardo Antonelli
doaj   +1 more source

Crossover of critical behavior and magnetocaloric effect in FePd2Te2 with one-dimensional Fe chains [PDF]

open access: yesAPL Materials
Recently, a two-dimensional ferromagnet FePd2Te2 exhibiting easy-plane anisotropy with a quasi-one-dimensional spin system has been discovered. We report the magnetic critical behavior and magnetocaloric effect of FePd2Te2 single crystals with magnetic ...
Hongyuan Wang   +4 more
doaj   +1 more source

Thermodynamic Derivation of Scaling at the Liquid–Vapor Critical Point

open access: yesEntropy, 2021
With the use of thermodynamics and general equilibrium conditions only, we study the entropy of a fluid in the vicinity of the critical point of the liquid–vapor phase transition.
Juan Carlos Obeso-Jureidini   +2 more
doaj   +1 more source

Exponent-critical groups

open access: yesJournal of Group Theory
Abstract We define and investigate the property of being “exponent-critical” for a finite group. A finite group is said to be exponent-critical if its exponent is not the least common multiple of the exponents of its proper non-abelian subgroups. We explore properties of exponent-critical groups and give a characterization of such groups.
Simon R. Blackburn   +3 more
openaire   +2 more sources

The concentration-compactness principles for Ws,p(·,·)(ℝN) and application

open access: yesAdvances in Nonlinear Analysis, 2020
We obtain a critical imbedding and then, concentration-compactness principles for fractional Sobolev spaces with variable exponents. As an application of these results, we obtain the existence of many solutions for a class of critical nonlocal problems ...
Ho Ky, Kim Yun-Ho
doaj   +1 more source

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