Results 81 to 90 of about 155,960 (333)

Critical Exponents and Universality for Fractal Time Processes above the Upper Critical Dimensionality

open access: yesFractal and Fractional
We study the critical behaviors of systems undergoing fractal time processes above the upper critical dimension. We derive a set of novel critical exponents, irrespective of the order of the fractional time derivative or the particular form of ...
Shaolong Zeng   +3 more
doaj   +1 more source

Mean-field quantum phase transition in graphene and in general gapless systems

open access: yes, 2010
We study the quantum critical properties of antiferromagnetism in graphene at T=0 within mean-field (MF) theory. The resulting exponents differ from the conventional MF exponents, describing finite temperature transitions.
Attila Virosztek   +4 more
core   +1 more source

Hip morphology‐based osteoarthritis risk prediction models: development and external validation using individual participant data from the World COACH Consortium

open access: yesArthritis Care &Research, Accepted Article.
Objectives This study aims to develop hip morphology‐based radiographic hip osteoarthritis (RHOA) risk prediction models and investigates the added predictive value of hip morphology measurements and the generalizability to different populations. Methods We combined data from nine prospective cohort studies participating in the World COACH consortium ...
Myrthe A. van den Berg   +26 more
wiley   +1 more source

Determination of universal critical exponents using Lee-Yang theory

open access: yesPhysical Review Research, 2019
Lee-Yang zeros are points in the complex plane of an external control parameter at which the partition function vanishes for a many-body system of finite size.
Aydin Deger, Christian Flindt
doaj   +1 more source

Anisotropic critical behavior of current-driven skyrmion dynamics in chiral magnets with disorder

open access: yesNew Journal of Physics, 2020
The dynamic pinning effects are significant in manipulating skymions in chiral magnetic materials with quenched disorder. Through numerical simulations of the non-stationary current-driven dynamics of skyrmions with the Landau–Lifshitz–Gilbert equation ...
L Xiong, B Zheng, M H Jin, N J Zhou
doaj   +1 more source

Weighted critical exponents of Sobolev-type embeddings for radial functions

open access: yesAdvanced Nonlinear Studies, 2022
In this article, we prove the upper weighted critical exponents for some embeddings from weighted Sobolev spaces of radial functions into weighted Lebesgue spaces. We also consider the lower critical exponent for certain embedding.
Su Jiabao, Wang Cong
doaj   +1 more source

The natural flow and the critical exponent

open access: yes, 2023
Inspired by work of Besson-Courtois-Gallot, we construct a flow called the natural flow on a nonpositively curved Riemannian manifold $M$. As with the natural map, the $k$-Jacobian of the natural flow is directly related to the critical exponent $δ$ of the fundamental group.
Connell, C., McReynolds, D., Wang, S.
openaire   +3 more sources

Identifying High‐Impact Solutions to Address Racial and Ethnic Health Disparities in Lupus: A Consensus‐Based Approach

open access: yesArthritis Care &Research, Accepted Article.
Objective We conducted formative research aimed at identifying solutions that address inequitable health outcomes in lupus due to adverse social determinants of health. Methods We conducted a search for keywords which provided insights into potential solutions and initiatives underway. An advisory panel of lupus experts iteratively reviewed the list of
Joy Buie   +11 more
wiley   +1 more source

Hypergeometric continuation of divergent perturbation series: I. Critical exponents of the Bose–Hubbard model

open access: yesNew Journal of Physics, 2017
We study the connection between the exponent of the order parameter of the Mott insulator-to-superfluid transition occurring in the two-dimensional Bose–Hubbard model, and the divergence exponents of its one- and two-particle correlation functions.
Sören Sanders, Martin Holthaus
doaj   +1 more source

Problem with Critical Sobolev Exponent and with Weight [PDF]

open access: yesChinese Annals of Mathematics, Series B, 2007
We study existence results for a problem with criticical Sobolev exponent and with a positive weight.
Hadiji, Rejeb, Yazidi, Habib
openaire   +5 more sources

Home - About - Disclaimer - Privacy