Results 101 to 110 of about 36,594 (305)

White Phosphorus Activation with Cobalt–Zinc Complexes: Access to Phosphorus‐Rich Sandwich Compounds

open access: yesChemistryEurope, EarlyView.
Heterometallic complexes showcasing Co–Zn interactions have been synthesized through straightforward salt metathesis methods. Their reaction with white phosphorus yields a dimeric sandwich complex containing bridging P2 units. A stepwise mechanism for its formation is proposed, supported by the isolation of intermediates.
Marco D. Fritz   +3 more
wiley   +1 more source

Pullback attractors for the non-autonomous complex Ginzburg–Landau type equation with p-Laplacian

open access: yesNonlinear Analysis, 2015
In this paper, we are concerned with the long-time behavior of the non-autonomous complex Ginzburg–Landau type equation with p-Laplacian. We first prove the existence of pullback absorbing sets in L2(Ω)∩W01,p(Ω)∩Lq(Ω) for the process {U(t,τ)}t⩾τ ...
Fang Li, Bo You
doaj   +1 more source

Establishing Indium in Frustrated Lewis Pair Chemistry: From Synthesis to Catalytic Applications

open access: yesChemistryEurope, EarlyView.
Not that hard: The effects of chemical hardness of the soft FLP tBu2InCH2PtBu2 and its pyridine‐adduct tBu2In(py)CH2PtBu2 were examined in adduct formation reactions toward H2, CO2, and CS2. The frustrated Lewis pair shows catalytic activity in the reduction of CO2 with pinacolborane.
Daniel N. Heuer   +6 more
wiley   +1 more source

Considering spatiotemporal evolutionary information in dynamic multi‐objective optimisation

open access: yesCAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract Preserving population diversity and providing knowledge, which are two core tasks in the dynamic multi‐objective optimisation (DMO), are challenging since the sampling space is time‐ and space‐varying. Therefore, the spatiotemporal property of evolutionary information needs to be considered in the DMO.
Qinqin Fan   +3 more
wiley   +1 more source

On critical points of p harmonic functions in the plane

open access: yesElectronic Journal of Differential Equations, 1994
$ 1 < p < infty $, in the unit disk and equal to a polynomial $ P $ of positive degree on the boundary of this disk, then $ abla u $ has at most deg$P - 1$ zeros in the unit disk.
John L. Lewis
doaj  

Semiclassical inequalities for Dirichlet and Neumann Laplacians on convex domains

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract We are interested in inequalities that bound the Riesz means of the eigenvalues of the Dirichlet and Neumann Laplacians in terms of their semiclassical counterpart. We show that the classical inequalities of Berezin–Li–Yau and Kröger, valid for Riesz exponents γ≥1$\gamma \ge 1$, extend to certain values γ<1$\gamma <1$, provided the underlying ...
Rupert L. Frank, Simon Larson
wiley   +1 more source

A Rado type theorem for p-harmonic functions in the plane

open access: yesElectronic Journal of Differential Equations, 1994
$p$-Laplace equation $$ { m div}(|abla u|^{p-2}abla u)=0 $$ in $Omegasetminus {x :u(x)=0}$, then $u$ is a solution to the $p$-Laplacian in the whole $Omegasubset R^2$.
Tero Kilpelainen
doaj  

Prüfer transformation for the \(p\)-Laplacian

open access: yesElectronic Journal of Differential Equations, 2010
Summary: Prüfer transformation is a useful tool for studying second-order ordinary differential equations. There are many possible extensions of the original Prüfer transformation. We focus on a transformation suitable for study of boundary value problems for the \(p\)-Laplacian in the resonant case.
Jiri Benedikt, Petr Girg
openaire   +2 more sources

Isoperimetric inequalities on slabs with applications to cubes and Gaussian slabs

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract We study isoperimetric inequalities on “slabs”, namely weighted Riemannian manifolds obtained as the product of the uniform measure on a finite length interval with a codimension‐one base. As our two main applications, we consider the case when the base is the flat torus R2/2Z2$\mathbb {R}^2 / 2 \mathbb {Z}^2$ and the standard Gaussian measure
Emanuel Milman
wiley   +1 more source

Properties of Bisdiazo Compounds and Their Derived Carbenes via Density Functional Theory

open access: yesChemPhysChem, EarlyView.
Density function theory (DFT) calculation at level of B3LYP‐(D3)BJ/6‐311G** reveals the fundamental electronic structure of substituted bisdiazo compounds as well as their derived carbene and biscarbene species at both ground and excited states. Extension to physisorption onto single‐layer graphene provides more insight of the surface behaviour of this
Xiaosong Liu, Mark Gerard Moloney
wiley   +1 more source

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