Results 1 to 10 of about 30 (29)

Modelo de error en imágenes comprimidas con wavelets [PDF]

Ingeniería y Ciencia, 2007
En este artículo se presenta la compresión de imágenes a través de la comparación entre el modelo Wavelet y el modelo Fourier, utilizando la minimización de la función de error.
Jairo Villegas G., Gloria Puetamán G., Hernán Salazar E.   +2 more
doaj   +1 more source

Cauchy-Riemann ̄∂-equations with some applications

Complex Manifolds, 2022
This paper shows that given 0 < p < 3 and a complex Borel measure µ on the unit disk 𝔻 the inhomogeneous Cauchy-Riemann ...
Xiao Jie, Yuan Cheng
doaj   +1 more source

Generalized Stević-Sharma operators from the minimal Möbius invariant space into Bloch-type spaces

Demonstratio Mathematica, 2023
The aim of this study is to investigate the boundedness, essential norm, and compactness of generalized Stević-Sharma operator from the minimal Möbius invariant space into Bloch-type space.
Guo Zhitao
doaj   +1 more source

Radial growth of the derivatives of analytic functions in Besov spaces

Concrete Operators, 2020
For 1 < p < ∞, the Besov space Bp consists of those functions f which are analytic in the unit disc 𝔻 = {z ∈ 𝔺 : |z| < 1} and satisfy ∫𝔻(1 − |z|2)p−2|f ′(z)|p dA(z) < ∞. The space B2 reduces to the classical Dirichlet space 𝒟.
Domínguez Salvador, Girela Daniel
doaj   +1 more source

On the closed range problem for composition operators on the Dirichlet space

Concrete Operators, 2019
We characterize closed range composition operators on the Dirichlet space for a particular class of composition symbols. The characterization relies on a result about Fredholm Toeplitz operators with BMO1 symbols, and with Berezin transforms of vanishing
Zorboska Nina
doaj   +1 more source

Well/ill-posedness for the dissipative Navier–Stokes system in generalized Carleson measure spaces

Advances in Nonlinear Analysis, 2017
As an essential extension of the well known case β∈(12,1]{\beta\kern-1.0pt\in\kern-1.0pt({\frac{1}{2}},1]} to the hyper-dissipative case β∈(1,∞){\beta\kern-1.0pt\in\kern-1.0pt(1,\infty)}, this paper establishes both well-posedness and ill-posedness (not ...
Wang Yuzhao, Xiao Jie
doaj   +1 more source

Generalized Stević–Sharma operators on weighted Dirichlet spaces

Demonstratio Mathematica
In this paper, we investigate the order boundedness of the generalized Stević–Sharma operators between weighted Dirichlet spaces. We also characterize the boundedness, essential norm and compactness of this class of operators acting from weighted ...
Guo Zhitao
doaj   +1 more source

Capacity and perimeter from logarithmic fractional Sobolev spaces on Carnot groups

Advances in Nonlinear Analysis
In this paper, we introduce the logarithmic fractional Sobolev space on Carnot groups and investigate the various functional-geometric aspects of the corresponding functional capacity.
Zhao Nan, Liu Yu
doaj   +1 more source

Thermal physiology of Amazonian lizards (Reptilia: Squamata). [PDF]

PLoS One, 2018
Diele-Viegas LM, Vitt LJ, Sinervo B, Colli GR, Werneck FP, Miles DB, Magnusson WE, Santos JC, Sette CM, Caetano GHO, Pontes E, Ávila-Pires TCS.   +11 more
europepmc   +1 more source

Noetherian Solvability of an Operator Singular Integral Equation With a Carleman Shift in Fractional Spaces

Complex Variables and Elliptic Equations, 2021
K S Tulenov
exaly