Results 111 to 120 of about 1,100,393 (352)

A discretization of the Laplace and Gauss-Weierstrass operators

open access: yesComputers & Mathematics with Applications, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
O. Villo, Paolo Ricci, C. Belingeri
openaire   +2 more sources

Theoretical Investigation of Superconductivity Properties of Sr1−xKxFe2As2: A Two‐Band Green's Function Approach

open access: yesAdvanced Physics Research, EarlyView.
The superconducting (SC) transition temperature (TC) increases exponentially to a maximum as the SC coupling parameter increases for both intra‐ and inter‐band interactions. Strong electron–electron interaction within the hole intra‐band leads to the maximum TC.
Gedefaw Mebratie   +2 more
wiley   +1 more source

On the p-Laplace operator on Riemannian manifolds [PDF]

open access: yesarXiv: Differential Geometry, 2012
This thesis covers different aspects of the p-Laplace operators on Riemannian manifolds. Chapter 2. Potential theoretic aspects: the Khasmkinskii condition. Chapter 3: sharp eigenvalue estimates with Ricci curvature lower bounds. Chapter 4: Critical sets of (2-)harmonic functions.
openaire   +2 more sources

Metasurface Doppler Cloak for Broadband Radar Stealth

open access: yesAdvanced Physics Research, EarlyView.
Suppressing the motion‐induced Doppler shift passes the target as part of the static clutter which is ignored by radars. Using a simple time‐modulation, frequency conversion is obtained from a metasurface‐based solution over a wide range. Referred to as a Doppler cloak, this work expands and validates such a varactor‐loaded prototype for broadband ...
Tanguy Lopez   +3 more
wiley   +1 more source

An application to Kato's square root problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We find all complex potentials Q such that the general Schrödinger operator on ℝn, given by L=−Δ+Q, where Δ is the Laplace differential operator, verifies the well-known Kato's square problem. As an application, we will consider the case where Q∈Lloc1(Ω)
Toka Diagana
doaj   +1 more source

Clinical Significance of Gut Microbiota Community Types for Long‐term Response to Fecal Microbiota Transplantation in Patients with Psoriatic Arthritis

open access: yesArthritis &Rheumatology, Accepted Article.
Objective Fecal microbiota transplantation (FMT) holds promises as a beneficial supplement to methotrexate in patients with psoriatic arthritis (PsA). We therefore investigated how gut bacterial signatures in patients and donor strain engraftment associated with long‐term response to FMT.
Panpan Qin   +7 more
wiley   +1 more source

Output feedback robust stabilization of distributed‐order systems

open access: yesAsian Journal of Control, EarlyView.
Abstract This paper addresses the challenge of robust fast stabilization for a class of dynamical systems characterized by slow and ultra‐slow dynamics. The system model is approximated using a distributed‐order derivative of the measured output, which captures the influence of the control input, system dynamics, and external disturbances.
Aldo Jonathan Muñoz‐Vázquez   +3 more
wiley   +1 more source

Topology-controlled Laplace–Beltrami operator on point clouds based on persistent homology

open access: yesGraphical Models
Computing the Laplace–Beltrami operator on point clouds is essential for tasks such as smoothing and shape analysis. Unlike meshes, determining the Laplace–Beltrami operator on point clouds requires establishing neighbors for each point.
Ao Zhang   +3 more
doaj   +1 more source

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