Results 51 to 60 of about 32,869 (134)

Integral and derivative operators of functional order on generalized Besov and Triebel-Lizorkin spaces in the setting of spaces of homogeneous type [PDF]

open access: yes, 2002
summary:In the setting of spaces of homogeneous-type, we define the Integral, $I_{\phi}$, and Derivative, $D_{\phi}$, operators of order $\phi$, where $\phi$ is a function of positive lower type and upper type less than $1$, and show that $I_{\phi}$ and $
Hartzstein, Silvia I.   +1 more
core   +1 more source

Multiplicatively invariant subspaces of Besov spaces

open access: yes, 1981
We study subspaces of Besov spaces B p s , q B_p^{s,q} which are invariant under pointwise multiplication by characters.
Per Nilsson
core   +1 more source

Capacities and embeddings of Besov spaces via general convolution kernels

open access: yes
This note is denoted to establish equivalent characterizations of Carleson embeddings of fractional Besov spaces Λp,q β (Rn) into the Lorentz spaces Lq0,pμ (R1+n+) induced by general convolution kernels Φt(·).
Li, Pentago, Zhai, Zhichun, Hu, Rui
core   +1 more source

Algebra properties for Besov spaces on unimodular Lie groups

open access: yes, 2015
We consider the Besov space $B^{p,q}_\alpha(G)$ on a unimodular Lie group G equipped with a sublaplacian $\Delta$. Using estimates of the heat kernel associated with $\Delta$, we give several characterizations of Besov spaces, and show an algebra ...
Feneuil, Joseph
core   +1 more source

K-functionals for Besov spaces

open access: yes, 1991
R. DeVore, Ming-Yue Xiang
semanticscholar   +1 more source

A new scale of function spaces characterizing homogeneous Besov spaces.

open access: yes
version révisée suivant les remarques des rapporteurs. Peu de changements.We introduce and study a new scale of function spaces that characterize the homogeneous Besov spaces $Ḃ^\beta_{p,q}$, hence completing earlier work by Ullrich.
Haardt, Luca   +2 more
core   +2 more sources

Hyperbolic P ( Φ ) 2 -model on the Plane. [PDF]

open access: yesCommun Math Phys
Oh T, Tolomeo L, Wang Y, Zheng G.
europepmc   +1 more source

Home - About - Disclaimer - Privacy