Results 21 to 30 of about 106 (83)

The case of equality in Landau′s problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2005, Issue 11, Page 1781-1793, 2005., 2005
Kolmogorov (1949) determined the best possible constant Kn,m for the inequality Mm(f)≤Kn,mM0(n−m)/n(f)Mnm/n(f), 0
G. W. Hagerty, P. Nag
wiley   +1 more source

Landau-Kolmogorov type inequalities for curves on Riemannian manifolds [PDF]

open access: yesMathematical Inequalities & Applications, 2019
Summary: We obtain Landau-Kolmogorov type inequalities for mappings defined on the whole real axis and taking values in Riemannian manifolds. In terms of an auxiliary convex function, we find conditions under which the boundedness of covariant derivative along the curve under consideration ensures the boundedness of the corresponding tangent vector ...
openaire   +2 more sources

Stochastic Hydrodynamic Velocity Field and the Representation of Langevin Equations

open access: yesAnnalen der Physik, Volume 537, Issue 6, June 2025.
A lumped method is proposed to account for both mean‐field hydrodynamics and stochastic fluctuations within the kinematic equations of motion, providing a regularized formulation of the overdamped approximation. The concept of stochastic realizability in broad sense is introduced based on the spectral properties of the Fredholm operator associated with
Massimiliano Giona   +2 more
wiley   +1 more source

Transition from the chaotic turbulence to the turbulent structures

open access: yesDiscrete Dynamics in Nature and Society, Volume 3, Issue 4, Page 243-250, 1999., 1999
Weak turbulence, similar to incoherent light, may be represented as an ensemble of quasi‐free quanta or Fourier harmonics. Unlike it, strongly turbulent state should be based on nonlinear structures. In particular, strong plasma turbulence may be constructed of discrete formations, viz., Langmuir solitons.
A. Kingsep
wiley   +1 more source

Physics of Ferroelectric Wurtzite Al1−xScxN Thin Films

open access: yesAdvanced Electronic Materials, Volume 11, Issue 2, February 2025.
This review highlights Al1−xScxN as a groundbreaking wurtzite ferroelectric with exceptional properties, including large polarization, tunable coercive field, outstanding thermal stability, and compatibility with CMOS/III‐N technologies. It explores the origins of its ferroelectricity, phase stability, and control mechanisms, discusses challenges such ...
Feng Yang
wiley   +1 more source

Interpolation of derivatives and ultradifferentiable regularity

open access: yesMathematische Nachrichten, Volume 298, Issue 2, Page 617-635, February 2025.
Abstract Interpolation inequalities for Cm$C^m$ functions allow to bound derivatives of intermediate order 0
Armin Rainer, Gerhard Schindl
wiley   +1 more source

Numerical Investigation Into Mechanical Behavior of Metastable Olivine During Phase Transformation: Implications for Deep‐Focus Earthquakes

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 2, February 2025.
Abstract One hypothesized mechanism that triggers deep‐focus earthquakes in oceanic subducting slabs below ∼300 km depth is transformational faulting due to the olivine‐to‐spinel phase transition. This study uses finite element modeling to investigate phase transformation‐induced stress redistribution and material weakening in olivine.
S. Sindhusuta   +4 more
wiley   +1 more source

A Landau–Kolmogorov inequality for Orlicz spaces

open access: yesJournal of Inequalities and Applications, 2002
In this paper we prove that the Landau–Kolmogorov inequality for functions on the half line holds for any Orlicz space with the constants, which are best possible for -space.
Bang Ha Huy, Thu Mai Thi
doaj  

EHA2024 Hybrid Congress [PDF]

open access: yesHemasphere
HemaSphere, Volume 8, Issue S1, June 2024.
europepmc   +2 more sources

Undergraduate nursing students challenge misconceptions towards men in nursing: A mixed‐method study

open access: yesJournal of Advanced Nursing, Volume 80, Issue 4, Page 1638-1651, April 2024.
Abstract Aims To examine misconceptions towards men in nursing from the perspective of undergraduate nursing students. Specifically, this study sought to explore contributing factors of misconceptions and attributions of the success of men in nursing. Design A convergent parallel mixed‐method study.
Lucie M. Ramjan   +6 more
wiley   +1 more source

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