The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

Displaying similar documents to “Linear operators on L 1 / α ( 0 , ) and Lorentz spaces: The Krasnosel’skii-Zabrieko characteristic sets”

A sharp correction theorem

S. Kisliakov (1995)

Studia Mathematica

Similarity:

Under certain conditions on a function space X, it is proved that for every L -function f with f 1 one can find a function φ, 0 ≤ φ ≤ 1, such that φf ∈ X, m e s φ 1 ɛ f 1 and φ f X c o n s t ( 1 + l o g ɛ - 1 ) . For X one can take, e.g., the space of functions with uniformly bounded Fourier sums, or the space of L -functions on n whose convolutions with a fixed finite collection of Calderón-Zygmund kernels are also bounded.

L and L-estimates with a local weight for the ∂-equation on convex domains in C.

Francesc Tugores (1992)

Publicacions Matemàtiques

Similarity:

We construct a defining function for a convex domain in C that we use to prove that the solution-operator of Henkin-Romanov for the ∂-equation is bounded in L and L-norms with a weight that reflects not only how near the point is to the boundary of the domain but also how convex the domain is near the point. We refine and localize the weights that Polking uses in [Po] for the same type of domains because they depend only on the Euclidean distance to the boudary and don't take into account...

On the interior boundary-value problem for the stationary Povzner equation with hard and soft interactions

Vladislav A. Panferov (2004)

Annali della Scuola Normale Superiore di Pisa - Classe di Scienze

Similarity:

The Povzner equation is a version of the nonlinear Boltzmann equation, in which the collision operator is mollified in the space variable. The existence of stationary solutions in L 1 is established for a class of stationary boundary-value problems in bounded domains with smooth boundaries, without convexity assumptions. The results are obtained for a general type of collision kernels with angular cutoff. Boundary conditions of the diffuse reflection type, as well as the given incoming...