Almost sure approximation of unbounded operators in $L_2 (X,A,μ)$

Ryszard Jajte; Adam Paszkiewicz

Displaying similar documents to “Almost sure approximation of unbounded operators in $L_{2} (X, A, μ)$ ”

Method of orthogonal projections and approximation of the spectrum of a bounded operator II

Andrzej Pokrzywa (1981)

Studia Mathematica

Similarity:

Two-sided estimates for the approximation numbers of Hardy-type operators in $L^{\infty}$ and L¹

W. Evans, D. Harris, J. Lang (1998)

Studia Mathematica

Similarity:

In [2] and [3] upper and lower estimates and asymptotic results were obtained for the approximation numbers of the operator $T : L^{p} (ℝ^{+}) \to L^{p} (ℝ^{+})$ defined by $(T f) (x) ≔ v (x) ʃ_{0}^{\infty} u (t) f (t) d t$ when 1 < p < ∞. Analogous results are given in this paper for the cases p = 1,∞ not included in [2] and [3].

Inductive limit of operators and its applications

J. Janas (1988)

Studia Mathematica

Similarity:

On spectral representation for selfadjoint operators. Expansion in generalized eigenelements

Eberhard Gerlach (1965)

Annales de l'institut Fourier

Similarity:

L’auteur reprend l’étude classique de la représentation spectrale d’un opérateur auto-adjoint $A$ dans un espace de Hilbert $ℋ$ . Il y ajoute des précisions nouvelles qui conduisent à la définition du projecteur infinitésimal $P^{) λ)}$ sur l’espace des vecteurs propres généralisés $ℋ^{(λ)}$ . Il obtient, par conséquent, des énoncés plus précis de bien des théorèmes classiques. Il introduit ensuite la notion de “ $A$ -expansibilité” d’un sous-ensemble $S \subset ℋ$ . Cette notion est appliquée à l’étude des espaces fonctionnels...

Computing norms and critical exponents of some operators in $L^{p}$ -spaces

T. Figiel, T. Iwaniec, A. Pełczyński (1984)

Studia Mathematica

Similarity:

Vector measures on the closed subspaces of a Hilbert space

R. Jajte, A. Paszkiewicz (1978)

Studia Mathematica

Similarity:

Ultra annihilation and creation operators

Schmeelk, John, Takaci, Arpad (1992)

Portugaliae mathematica

Similarity:

Global approximation by modified Baskakov type operators.

Vijay Gupta (1995)

Publicacions Matemàtiques

Similarity:

In the present paper, we prove a global direct theorem for the modified Baskakov type operators in terms of so called Ditzian-Totik modulus of smoothness.

Convergence and almost convergence of certain sequences of positive linear operators

B. Wood (1970)

Studia Mathematica

Similarity:

Displaying similar documents to “Almost sure approximation of unbounded operators in L 2 ( X , A , μ ) ”

Displaying similar documents to “Almost sure approximation of unbounded operators in $L_{2} (X, A, μ)$ ”