Results 61 to 70 of about 195 (182)
Stability of Viscous Three‐Dimensional Stratified Couette Flow via Dispersion and Mixing
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT This article explores the stability of stratified Couette flow in the viscous 3d$3d$ Boussinesq equations. In this system, mixing effects arise from the shearing background, and gravity acts as a restoring force leading to dispersive internal gravity waves.
Michele Coti Zelati +2 more
wiley +1 more source
Front Propagation Through a Perforated Wall
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT We consider a bistable reaction– diffusion equation ut=Δu+f(u)$u_t=\Delta u +f(u)$ on RN${\mathbb {R}}^N$ in the presence of an obstacle K$K$, which is a wall of infinite span with many holes. More precisely, K$K$ is a closed subset of RN${\mathbb {R}}^N$ with smooth boundary such that its projection onto the x1$x_1$‐axis is bounded and that ...
Henri Berestycki +2 more
wiley +1 more source
Stochastic Gradient Descent in High Dimensions for Multi‐Spiked Tensor PCA
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT We study the high‐dimensional dynamics of online stochastic gradient descent (SGD) for the multi‐spiked tensor model. This multi‐index model arises from the tensor principal component analysis (PCA) problem with multiple spikes, where the goal is to estimate the unknown signal vectors within the N$N$‐dimensional unit sphere through maximum ...
Gérard Ben Arous +2 more
wiley +1 more source
Convergence Rates for the Quantum Central Limit Theorem. [PDF]
Commun Math Phys, 2021 Becker S, Datta N, Lami L, Rouzé C.
europepmc +1 more source
From Custom to Court: The Evolution of Mediation in European Legal Systems
Conflict Resolution Quarterly, EarlyView.ABSTRACT This article traces how European mediation has repeatedly rebalanced three variables—(1) the source of mediator authority, (2) the degree of institutionalization, and (3) the operative meaning of voluntariness—from antiquity to the present. Using three periods—Proto‐Mediation (c. 500 BCE–c. 1750), Classical Mediation (c.
Viktoriia Hamaiunova
wiley +1 more source
Confined Hot Carrier Cooling Via Excited‐State Energy Gap Engineering in Graphyne Carbon Allotropes
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.The excited‐state energy gap (EEG), regulated by the concentration of sp‐hybridized carbon, provides an effective handle for tuning electron–phonon coupling behavior. This design enables long‐lived confinement of hot carriers near the top of the EEG with controllable energy levels.
Fulong Dai +9 more
wiley +1 more source
Temporal self-compression: Behavioral and neural evidence that past and future selves are compressed as they move away from the present. [PDF]
Proc Natl Acad Sci U S A, 2021 Brietzke S, Meyer ML.
europepmc +1 more source
European Journal of Social Psychology, EarlyView.ABSTRACT Affective polarisation, a growing hostility toward political outgroups, is a phenomenon rooted in social identity. Social identity threat—the expectation of experiencing some form of denigration based on a self‐relevant group identity—is thought to be a major driver of affective polarisation.
Brandon McMurtrie +4 more
wiley +1 more source
A guide to neuromodulation in drug‐resistant epilepsy
Epileptic Disorders, EarlyView.Abstract Neuromodulation is approved for the treatment of drug‐resistant epilepsy. It has been increasingly utilized over the past two decades with the approval of deep brain stimulation (DBS) and responsive neurostimulation (RNS) in addition to vagus nerve stimulation (VNS)—particularly in patients who are not deemed to be good resective surgical ...
Prachi Parikh +10 more
wiley +1 more source
Hierarchical organization of social action features along the lateral visual pathway. [PDF]
Curr Biol, 2023 McMahon E, Bonner MF, Isik L.
europepmc +1 more source