Results 31 to 40 of about 651 (60)

Multiplication and Composition in Weighted Modulation Spaces

, 2016
We study the existence of the product of two weighted modulation spaces. For this purpose we discuss two different strategies. The more simple one allows transparent proofs in various situations.
B Wang, B Wang, B Wang, D Jornet, DG Bhimani, E Cordero, G Bourdaud, G Bourdaud, H Helson, H Triebel, H-J Schmeisser, J Franke, J Johnsen, J Peetre, J Toft, J Toft, K Gröchenig, M Sugimoto, PI Lizorkin, RS Strichartz, SM Nikol’skij, T Iwabuchi, VG Maz’ya   +22 more
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Global Continua of Positive Equilibria for some Quasilinear Parabolic Equation with a Nonlocal Initial Condition

, 2012
This paper is concerned with a quaslinear parabolic equation including a nonlinear nonlocal initial condition. The problem arises as equilibrium equation in population dynamics with nonlinear diffusion.
Ch Walker, Ch Walker, Ch Walker, Ch Walker, Christoph Walker, G Restrepo, GF Webb, H Amann, H Amann, H Triebel, J Prüß, J Shi, JM Cushing, MG Crandall, PH Rabinowitz   +14 more
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Variational and topological methods for operator equations involving duality mappings on Orlicz-Sobolev spaces

Electronic Journal of Differential Equations, 2007
Let $a:mathbb{R}o mathbb{R}$ be a strictly increasing odd continuous function with $lim_{to +infty }a(t)=+infty $ and $A(t)=int_{0}^{t}a(s),ds$, $tin mathbb{R}$, the $N$-function generated by $a$.
Pavel Matei, George Dinca
doaj  

The quest for the ultimate anisotropic Banach space

, 2017
We present a new scale $U^{t,s}_p$ (with ...
Baladi, Viviane
core   +1 more source

Variational inequalities for the spectral fractional Laplacian

, 2016
In this paper we study the obstacle problems for the Navier (spectral) fractional Laplacian $\left(-\Delta_\Omega\right)^{\!s}$ of order $s\in(0,1)$, in a bounded domain $\Omega\subset\mathbb R^n$.Comment: 20 ...
Musina, Roberta, Nazarov, Alexander I.
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Kolmogorov widths under holomorphic mappings

, 2015
If $L$ is a bounded linear operator mapping the Banach space $X$ into the Banach space $Y$ and $K$ is a compact set in $X$, then the Kolmogorov widths of the image $L(K)$ do not exceed those of $K$ multiplied by the norm of $L$.
Cohen, Albert, Devore, Ronald
core   +1 more source

Analysis of models for quantum transport of electrons in graphene layers

, 2013
We present and analyze two mathematical models for the self consistent quantum transport of electrons in a graphene layer. We treat two situations. First, when the particles can move in all the plane $\RR^2$, the model takes the form of a system of ...
Hajj, Raymond El, Méhats, Florian
core   +3 more sources

Abstract. In this paper we consider the Nemytskii operator [PDF]

(t) = h(t, f(t)), generated by a given set–valued function h is considered. It is shown that if H is globally Lipschitzian and maps the space of functions of bounded p-variation (with respect to a weight function α) into the space of set-valued ...

core  

Uniformly bounded Nemytskij operators acting between the Banach spaces of generalized Hölder functions [PDF]

Journal of Applied Mathematics and Computational Mechanics, 2017
Maria Lupa, Małgorzata Wróbel
openaire   +2 more sources

Bifurcation of Fredholm Maps I; The Index Bundle and Bifurcation

, 2011
We associate to a parametrized family $f$ of nonlinear Fredholm maps possessing a trivial branch of zeroes an {\it index of bifurcation} $\beta(f)$ which provides an algebraic measure for the number of bifurcation points from the trivial branch.
Pejsachowicz, Jacobo
core