Results 51 to 60 of about 91 (89)

A posteriori analysis of the spectral element discretization of heat equation

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
In this paper, we present a posteriori analysis of the discretization of the heat equation by spectral element method. We apply Euler’s implicit scheme in time and spectral method in space.
Chorfi Nejmeddine, Abdelwahed Mohamed, Ben Omrane Ines   +2 more
doaj   +1 more source

Derivations on ρ-Banach Algebras

, 2004
unavailable at this time...Mathematics Subject Classification (2000): 46H99, 47B47. Key words: ρ-Banach algebra, derivation, separating space, separating ideal, spectrally bounded.Quaestiones Mathematicae 27 (2004), 21 ...
Khosravi, Amir
core  

Commutators for the maximal and sharp functions with weighted Lipschitz functions on weighted Morrey spaces

Demonstratio Mathematica
We study the boundedness of commutators of the Hardy-Littlewood maximal function and the sharp maximal function on weighted Morrey spaces when the symbols of the commutators belong to weighted Lipschitz spaces (weighted Morrey-Campanato spaces). Some new
Zhang Pu, Fan Di
doaj   +1 more source

Existence and uniqueness of solutions for certain functional equations and system of functional equations arising in dynamic programming

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
This paper deals with the existence, uniqueness and iterative approximations of solutions for the functional equations and system of functional equations arising in dynamic programming of multistage decision making processes in Banach spaces and complete
Deepmala, Agarwal Ravi P.
doaj   +1 more source

A simulation algorithm for a single server retrial queuing system with batch arrivals

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015
Many systems of real word are modeled by retrial queuing system with batch arrivals. Analytical formulas for this class of systems are complicated and address only particular cases.
Florea Ion, Nǎnǎu Corina-Ştefania
doaj   +1 more source

Dietary habits are associated with the prevalence of type 2 diabetes: a study among a middle eastern population. [PDF]

J Nutr Sci, 2022
Mahdi S, Mazidi M, Davies IG, Beigrezaei S, Mozaffari-Khosravi H, Mirzaei M, Lane KE, Khayyatzadeh SS.   +7 more
europepmc   +1 more source

SOME RESULTS ON OPERATORS CONSISTENT IN INVERTIBILITY

, 2018
In this paper, we investigate the conditions under which some classes of operators in a complex Hilbert space H are said to be consistent in invertibility.
Wabuya, Kikete, Stephen, Luketero
core  

Derivations on functional (local banach) algebras

, 2004
Firstly we obtain some of the general properties of functional (local Banach) algebras and secondly we generalize some of the known results of derivations on Banach algebras to such algebras.
Khosravi, A.
core  

Characterization of derivations on strongly double triangle subspace lattice algebras by local actions

Open Mathematics
Let D $\mathcal{D}$ be a strongly double triangle subspace lattice on a nonzero complex reflexive Banach space and AlgD $\text{Alg}\mathcal{D}$ the associated subspace lattice algebra. Assume that F,G∈AlgD $F,G\in \text{Alg}\mathcal{D}$ and set R(F,G)=
Qin Zijie
doaj   +1 more source

On Quasi-invertibility and Quasi-similarity of Operators in Hilbert Space.

, 2018
In this paper we show that if two operators A and B are quasi-invertible then AB and BA are also quasi-similar. We also show that if two operators and are isometric is consistent in invertibility under further hypothesis.
S.W., Luketero, S.K, Waihenya, D.W., Kikete   +2 more
core