Results 11 to 20 of about 1,565,058 (384)

On the operational calculus for groups of operators [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1970
We study some compactness properties of the natural operational calculus for groups of operators.
Shmuel Kantorovitz
openaire   +3 more sources

Calculus of sea-displacement operators [PDF]

open access: greenPhysical Review B, 2002
Plain LaTeX, 46 tedious ...
Girish S. Setlur, David S. Citrin
openaire   +4 more sources

Extended finite operator calculus—an example of algebraization of analysis [PDF]

open access: hybrid, 2004
“A Calculus of Sequences” started in 1936 by Ward constitutes the general scheme for extensions of classical operator calculus of Rota—Mullin considered by many afterwards and after Ward.
A. Kwasniewski, E. Borak
semanticscholar   +3 more sources

The functional calculus for regular operators in Hilbert C*-modules revisited [PDF]

open access: greenarXiv, 1997
Woronowicz introduced the functional calculus for normal operators in Hilbert C*-modules. The aim of this paper is to translate, if possible, some basic properties of the functional calculus in Hilbert spaces to the Hilbert C*-module framework.
Johan Kustermans
arxiv   +3 more sources

The $H^{\infty}-$calculus and sums of closed operators [PDF]

open access: greenarXiv, 2000
We develop a very general operator-valued functional calculus for operators with an $H^{\infty}-$calculus. We then apply this to the joint functional calculus of two commuting sectorial operators when one has an $H^{\infty}$calculus. Using this we prove theorem of Dore-Venni type on sums of commuting sectorial operators and apply our results to the ...
N. J. Kalton, Lutz Weis
arxiv   +3 more sources

Numerical operator calculus in higher dimensions

open access: greenProceedings of the National Academy of Sciences of the United States of America, 2002
G. Beylkin, Martin J. Mohlenkamp
semanticscholar   +2 more sources

Convoluted fractional differentials of various forms utilizing the generalized Raina's function description with applications

open access: yesJournal of Taibah University for Science, 2022
A generalized differential operator utilizing Raina's function is constructed in light of a certain type of fractional calculus. We next use the generalized operators to build a formula for analytic functions of type normalized.
Rabha W. Ibrahim, Dumitru Baleanu
doaj   +1 more source

Operator Theory on One-Sided Quaternionic Linear Spaces: Intrinsic S-Functional Calculus and Spectral Operators [PDF]

open access: yesMemoirs of the American Mathematical Society, 2018
Two themes drive this article: identifying the structure necessary to formulate quaternionic operator theory and revealing the relation between complex and quaternionic operator theory.
J. Gantner
semanticscholar   +1 more source

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