Results 31 to 40 of about 151 (41)

Full operators and algebras generated by invertible operators

, 2009
In the present work we characterized full operators and we showed some properties that have nonfull injectives operators. With the results developed for full operators, we affirmatively respond two questions formulated by Bravo and Feintuch on when the ...
R, Wilson R. Pacheco
core   +1 more source

Approximation of Entropy Numbers

, 2017
The purpose of this article is to develop a technique to estimate certain bounds for entropy numbers of diagonal operator on spaces of p-summable sequences for finite p greater than 1.
Deepesh, K. P., Kumar, V. B. Kiran
core  

Pad\'{e}-type approximations to the resolvent of fractional powers of operators

, 2019
We study a reliable pole selection for the rational approximation of the resolvent of fractional powers of operators in both the finite and infinite dimensional setting. The analysis exploits the representation in terms of hypergeometric functions of the
Aceto, Lidia, Novati, Paolo
core  

Endomorphisms of B(H)

, 1994
The unital endomorphisms of B(H) of (Powers) index n are classified by certain U(n)-orbits in the set of non-degenerate representations of the Cuntz algebra O_n on H.
Bratteli, Ola, Jorgensen, Palle, Price, Geoff   +2 more
core  

Triangular truncation and normal limits of nilpotent operators

, 1995
D. Hadwin
semanticscholar   +1 more source

Convergence of orthogonal series of projections in Banach spaces

, 1997
R. Jajte, A. Paszkiewicz
semanticscholar   +1 more source

Normal operators in *-algebras without nice approximants

, 1997
D. Hadwin, T. Loring
semanticscholar   +1 more source

Review: A C*-algebra approach to complex symmetric operators [PDF]

, 2016
Garcia, Stephan Ramon
core   +1 more source

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Besov-Lorentz-type spaces and best approximations by exponential type vectors

, 2015
M. Dmytryshyn
semanticscholar   +1 more source

Approximation spaces associated with Legendre differential operators

, 2014
M. Dmytryshyn
semanticscholar   +1 more source