Buscar
Mostrando ítems 1-10 de 4490
On Best Constants for Limiting Embeddings of Fractional Sobolev Spaces
(Advanced Nonlinear Studies, IncSan AntonioEUA, 2010)
Maximal inequalities for a best approximation operator in Orlicz spaces
(Adam Mickiewicz University in Poznań. Faculty of Mathematics and Computer Sciences, 2011-08)
In this paper we study a maximal operator Mf related with the best ϕ approximation by constants for a function f ∈ L ϕ 0 loc(ℝn), where we denote by ϕ 0 for the derivative function of the C1 convex function ϕ. We get a ...
The best Sobolev trace constant in domains with holes for critical or subcritical exponents
(Cambridge University Press, 2007-12)
In this paper we study the best constant in the Sobolev trace embedding H1 (Ω) → Lq(∂Ω) in a bounded smooth domain for 1 < q ≤ 2+ = 2(N - 1)/(N - 2), that is, critical or subcritical q. First, we consider a domain with ...
Extension of the Best Constant Approximation Operator in Orlicz Spaces
(Taylor & Francis, 2020-04)
In this article we deal with the best φ-approximation operator by constants extended from an Orlicz space Lφ(Ω) to the space Lψ+ (Ω) where ψ+ denotes the right derivative of the function φ. We obtain pointwise convergence ...
Asymptotic behavior of best constants and extremals for trace embeddings in expanding domains
(MARCEL DEKKER INC, 2001)
The best Sobolev trace constant in a domain with oscillating boundary
(Pergamon-Elsevier Science Ltd, 2007-12)
In this paper we study homogenization problems for the best constant for the Sobolev trace embedding W1, p (Ω) {right arrow, hooked} Lq (∂ Ω) in a bounded smooth domain when the boundary is perturbed by adding an oscillation. ...
The best Sobolev trace constant in periodic media for critical and subcritical exponents
(Cambridge University Press, 2009-09)
In this paper we study homogenisation problems for Sobolev trace embedding H1(Ω) ↪ Lq(∂Ω) in a bounded smooth domain. When q = 2 this leads to a Steklov-like eigenvalue problem. We deal with the best constant of the Sobolev ...
Improved blow-up of solutions of a generalized Boussinesq equation
(Springer HeidelbergHeidelbergAlemanha, 1999)
Beyond ‘best practices': the international regulation of capital markets
(2015)
It is widely acknowledged that there is considerable international pressure for international ‘best practices’ to be adopted via national legislation. This would occur either by means of model laws or through the passing ...
Rate constants determined by nuclear magnetic resonance
(Academic Press, 2001)
Fast kinetic methods are used to measure reactions that take place in less time than required to mix the reagents manually and to measure the reaction by usual methods, like UV-visible spectrophotometry and fluorescence. ...