搜索结果: 1-8 共查到“泛函分析 positive”相关记录8条 . 查询时间(0.154 秒)
Completely positive multipliers of quantum groups
Locally compact quantum group manageable multiplicative unitary completely bounded multiplier
2011/9/21
Abstract: We show that any completely positive multiplier of the convolution algebra of the dual of an operator algebraic quantum group $\G$ (either a locally compact quantum group, or a quantum group...
An Ergodic Dilation of Completely Positive Maps
Ergodic Dilation Completely Positive Maps Operator Algebras
2011/9/15
Abstract: We shall prove the following Stinespring-type theorem: there exists a triple $(\pi,\mathcal{H},\mathbf{V})$ associated with an unital completely positive map $\Phi:\mathfrak{A}\rightarrow \m...
Magnitude is a numerical invariant of finite metric spaces, recently introduced by T. Leinster, which is analogous in precise senses to the cardinality of finite sets or the Euler characteristic of to...
Korovkin type theorem and iterates of certain positive linear operators
Iterates of operators degree of approximation K-functionals modulus of smoothness
2011/1/18
In this paper we prove Korovkin type theorem for iterates of general positive linear operators T :C [0, 1] ! C [0, 1] and derive quantitative estimates in terms of modulus of smoothness. In particular...
Rational Surface Automorphisms with Positive Entropy
Rational Surface Automorphisms Positive Entropy
2010/12/3
The aim of this paper is to construct many examples of rational surface automorphisms
with positive entropy by means of the concept of orbit data. We show that if an orbit
data satisfies some mild c...
Positive Quantization in the Presence of a Variable Magnetic Field
Magnetic field pseudodifferential operator coherent state Berezin operator Bargmann transform
2010/12/3
Starting with a previously constructed family of coherent states, we introduce the Berezin quantization for a particle in a variable magnetic field and we show that it constitutes a strict quantizatio...
Effective construction of a class of positive operators in Hilbert space, which do not admit triangular factorization
Triangular operators nest algebra multiplicity 1 hyperin-transitive operator
2010/12/2
A class of non-factorable positive operators is constructed. As a result,pure existence theorems in the well-known problems by Ringrose,Kadison and Singer are substituted by concrete examples.
About a Class of Linear Positive Operators Obtained by Choosing the Nodes
Linear positive operators convergence theorem the first order modulus of smoothness approximation theorem
2010/1/25
In this paper we consider the given linear positive operators and with their help, we construct linear positive operators . We study the convergence, the evaluation for the rate of convergence in t...