Results 11 to 20 of about 32,952 (266)

Eigen Neutrosophic Z- Set and Neutrosophic Z- Relation [PDF]

open access: yesNeutrosophic Sets and Systems
This paper introduces an innovative framework for computing the Greatest Eigen Neutrosophic Z-set and the Least Eigen Neutrosophic Z-set using the composition operators, namely max-min-min and min-max-max.
P. Sheeba Maybell, M. M. Shanmugapriya
doaj   +1 more source

Isometric multiplication operators and weighted composition operators of BMOA

open access: yesJournal of Inequalities and Applications, 2021
Let u be an analytic function in the unit disk D $\mathbb{D}$ and φ be an analytic self-map of D $\mathbb{D}$ . We give characterizations of the symbols u and φ for which the multiplication operator M u $M_{u}$ and the weighted composition operator M u ,
Ligang Geng
doaj   +1 more source

Composite operators in QCD [PDF]

open access: yesNuclear Physics B, 1992
We give a formula for the derivatives of a correlation function of composite operators with respect to the parameters (i.e., the strong fine structure constant and the quark mass) of QCD in four-dimensional euclidean space. The formula is given as spatial integration of the operator conjugate to a parameter. The operator product of a composite operator
openaire   +2 more sources

M-quasi-hyponormal composition operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
A necessary and sufficient condition is obtained for M-quasi-hyponormal composition operators. It has also been proved that the class of M-quasi-hyponormal composition operators coincides with the class of M-paranormal composition operators. Existence of
Pushpa R. Suri, N. Singh
doaj   +1 more source

Composition operators [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1978
A study of centered composition operators on l2 is made in this paper. Also the spectrum of surjective composition operators is computed. A necessary and sufficient condition is obtained for the closed unit disc to be the spectrum of a surjective composition operator.
Singh, R. K., Komal, B. S.
openaire   +2 more sources

Iteration of Composition Operators on small Bergman spaces of Dirichlet series

open access: yesConcrete Operators, 2018
The Hilbert spaces ℋw consisiting of Dirichlet series F(s)=∑n=1∞ann-s$F(s) = \sum\nolimits_{n = 1}^\infty {{a_n}{n^{ - s}}}$ that satisfty ∑n=1∞|an|2/wn 0 and {wn}n having average order (logj+n)α${(\log _j^ + n)^\alpha }$, that the composition operators ...
Zhao Jing
doaj   +1 more source

Inequalities for the composition of Green’s operator and the potential operator [PDF]

open access: yesJournal of Inequalities and Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dai, Zhimin   +3 more
openaire   +1 more source

Hardy spaces of generalized analytic functions and composition operators

open access: yesConcrete Operators, 2018
We present some recent results on Hardy spaces of generalized analytic functions on D specifying their link with the analytic Hardy spaces. Their definition can be extended to more general domains Ω . We discuss the way to extend such definitions to more
Pozzi Elodie
doaj   +1 more source

Growth Spaces on Circular Domains Taking Values in a Banach Lattice, Embeddings and Composition Operators

open access: yesMathematics
We introduce the space of holomorphic growth spaces with values in a Banach lattice. We provide norm and essential norm estimates of the embedding operator, and we completely characterize the bounded and compact embeddings of the growth spaces using ...
Nihat Gökhan Göğüş
doaj   +1 more source

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