Results 11 to 20 of about 190 (36)

C*-algebras and the Uncountable: A Systematic Study of the Combinatorics of the Uncountable in the Noncommutative Framework

Bulletin of Symbolic Logic, 2019
taken directly from the thesis. E-mail: jg878@cornell.edu Andrea Vaccaro, C∗-algebras and the Uncountable: A Systematic Study of the Combinatorics of the Uncountable in the Noncommutative Framework, Università di Pisa, Italy – York University, USA, 2019.
A. Vaccaro
semanticscholar   +1 more source

Cohomology of Hopf C*‐Algebras and Hopf Von Neumann Algebras [PDF]

, 2001
We define two canonical cohomology theories for Hopf C*‐algebras and for Hopf von Neumann algebras (with coefficients in their comodules). We then study the situations when these cohomologies vanish.
C. Ng
semanticscholar   +1 more source

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

OPERATOR VERSIONS OF SHANNON TYPE INEQUALITY

, 2016
In this paper, we present some refinements and precise estimations of parametric ex- tensions of Shannon inequality and its reverse one given by Furuta in Hilbert space operators.
I. Nikoufar
semanticscholar   +1 more source

Analysis of the energy decay of a viscoelasticity type equation

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
In this paper, we study the evolution of the energy density of a sequence of solutions of a problem related to a viscoelasticity model where the viscosity term is a pseudo-differential operator of order 2α with α ∈ (0, 1).
Atallah-Baraket Amel, Trabelsi Maryem
doaj   +1 more source

Exactness of Free and Amenable Groups by the Construction of Ozawa Kernels [PDF]

, 2004
Using properties of their Cayley graphs, specific examples of Ozawa kernels are constructed for both free and amenable groups, thus showing that these groups satisfy Property O.
Sarah Campbell
semanticscholar   +1 more source

The similarity degree of approximately divisible C*-algebras

, 2013
Let A be a unital approximately divisible C*-algebra. We show that the similarity degree of A is at most 5. Mathematics subject classification (2010): Primary 46L05.
Weihua Li
semanticscholar   +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

Orthogonally additive holomorphic functions on C^*-algebras

, 2012
Let A be a C ∗ -algebra. We prove that a holomorphic function of bounded type f : A → C is orthogonally additive on Asa if, and only if, it is additive on elements having zeroproduct if, and only if, there exist a positive functional φ in A∗ , a sequence
A. M. Peralta, D. Puglisi
semanticscholar   +1 more source

About instability in an elastic Cosserat body with pores

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
This article is centered on the study of the isotropic, porous Cosserat elastic media, realized by means of a parallel with the media of the same type, but anisotropic, by following the rewriting in a new form of the equations that govern this theory ...
Codarcea-Munteanu L., Marin M., Abouelregal A. E.   +2 more
doaj   +1 more source