Results 51 to 60 of about 2,067,545 (283)
Spectrum of a Class of Difference Operators with Indefinite Weights
Journal of Applied Mathematics and Physics, 2020 In this study, we use analytical methods and Sylvester inertia theorem to research a class of second order difference operators with indefinite weights and coupled boundary conditions. The eigenvalue problem with sign-changing weight has lasted a long time.
Congmin Yang, Yunlan Gao, Kang Sun
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Orbital Lymphatic Malformations Are Associated With Intracranial Vascular Anomalies
The Laryngoscope, EarlyView.In this retrospective series, all seven patients with orbital lymphatic malformations had intracranial vascular anomalies consistent with cerebrofacial venous metameric syndrome and hotspot PIK3CA variants identified through tissue‐based sequencing. Five patients treated with alpelisib experienced symptom improvement within 6 months.
Kelsey A. Loy +11 more
wiley +1 more source
Theory of Supercritical Coupling and Generalized Bound States in the Continuum
Laser &Photonics Reviews, EarlyView.We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri +3 more
wiley +1 more source
A global bifurcation result of a Neumann problem with indefinite weight
Electronic Journal of Qualitative Theory of Differential Equations, 2004 This paper is concerned with the bifurcation result of nonlinear Neumann problem \begin{equation} \left\{\begin{array}{lll} -\Delta_p u=& \lambda m(x)|u|^{p-2}u + f(\lambda,x,u)& \mbox{in} \ \Omega\\ \frac{\partial u}{\partial \nu}\hspace{0.55cm}= & 0 &
Abdelouahed El Khalil, M. Ouanan
doaj +1 more source
Potential of Thermoset Polyolefins for FRP Concrete Reinforcing Bars
Polymer Composites, EarlyView.Overview of XLPO and pDCPD resins for FRP reinforcing bars, highlighting resin chemistry, key performance characteristics, fiber sizing interactions, and principal degradation mechanisms in concrete environments. ABSTRACT Although thermoset polyolefins offer resistance to hydrolytic degradation and favorable processing characteristics, their potential ...
Osama Omar +5 more
wiley +1 more source
Strongly indefinite systems with critical sobolev exponents and weights
Applied Mathematics Letters, 2004 Let \(\Omega\) be a bounded smooth domain in \(\mathbb R^N\), \(N\geq 4\) and \(\lambda,\mu\in\mathbb R\). The author deals with the following problem: \[ -\Delta v=\lambda u+K(x)|u|^{p-1}u\text{ in }\Omega, \quad -\Delta u=\mu v+ Q(x)|v|^{q-1}v\text{ in }\Omega, \quad u=v=0\text{ on }\partial\Omega, \tag{1} \] where \(p,q>1\) and coefficients \(K,Q ...
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Polymer International, EarlyView.An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley +1 more source
Walangkura Napanangka, Kintore, Northern Territory, 2007 [picture] /
, 2007 Title devised by cataloguer based on inscriptions.; Part of the collection: Portraits of prominent indigenous artists of the Western Desert region of the Northern Territory, 2007.; Inscriptions: "A/P GW"--In ink below image; Photographer's blind stamp ...
Weight, Greg, 1946-
core
Optimal Homogeneous ℒp$$ {\boldsymbol{\mathcal{L}}}_{\boldsymbol{p}} $$‐Gain Controller
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Nonlinear ℋ∞$$ {\mathscr{H}}_{\infty } $$‐controllers are designed for arbitrarily weighted, continuous homogeneous systems with a focus on systems affine in the control input. Based on the homogeneous ℒp$$ {\mathcal{L}}_p $$‐norm, the input–output behavior is quantified in terms of the homogeneous ℒp$$ {\mathcal{L}}_p $$‐gain as a ...
Daipeng Zhang +3 more
wiley +1 more source
Long Jack Phillipus Tjakamarra, Northern Territory, 2007 [picture] /
, 2007 Title devised by cataloguer based on inscriptions.; Part of the collection: Portraits of prominent indigenous artists of the Western Desert region of the Northern Territory, 2007.; Inscriptions: Photographer's blind stamp lower right corner; "A/P Long ...
Weight, Greg, 1946-
core