| The enhanced Birkho -von Neumann decomposition (EBVND) algorithm, a new class of scheduling algorithms for input queued (IQ) switches, is introduced. Theoretical analysis shows that the performance of EBVND is better than the Birkho von Neumann decomposition algorithm in terms of throughput and cell delay, and can also provide rate and cell delay guarantees. Wave front Birkho -von Neumann dec...

Let A r = { < | z 1 } be an annulus. We consider the class of operators F : T ∈ B ( H ) 2 − ⁎ + ≤ , σ ⊂ and show that for every bounded holomorphic function ϕ on sup ⁡ ∞ where constant is best possible. do this by characterizing calcular norm induced as multiplier a suitable space .

and Applied Analysis 3 by Fujimoto 3 and Liu and Chen 4, 5 with the functional analysis approach. As for b , in case X is convex compact, and S is convex compact-valued with and without the upper hemicontinuous condition, it has also been studied by Liu and Zhang 6, 7 with the nonlinear analysis methods attributed to 8–10 , in particular, using the classical RogalskiCornet Theorem see 8, Theore...

An abelian self-commutator in a C*-algebra A is an element of the form A = XX−XX, with X ∈ A, such that XX and XX commute. It is shown that, given a finite AW*-factor A, there exists another finite AW*-factor M of same type as A, that contains A as an AW*-subfactor, such that any self-adjoint element X ∈ M of quasitrace zero is an abelian self-commutator in M. Introduction According to the Murr...

The name of John von Neumann is common both in quantum mechanics and computer science. Are they really two absolutely unconnected areas? Many works devoted to quantum computations and communications are serious argument to suggest about existence of such a relation, but it is impossible to touch the new and active theme in a short review. In the paper are described the structures and models of ...

We show that the generalized q-gaussian von Neumann algebras with coefficients Γq(B,S⊗H) with B a finite dimensional factor, dim(Dk(S)) sub-exponential and the dimension of H finite and larger than a constant depending on q, have no non-trivial central sequences.

A comprehensive linear stability analysis is given for an odd-even-line hopscotch method, which has been developed for integrating three-space dimensional, shallow water transport problems. Suucient and necessary conditions are derived for strict von Neumann stability for the case of the general, constant coeecient, linear advection-diiusion model problem.

The aim of this paper is to introduce a notion of L-homology in the context of von Neumann algebras. Finding a suitable (co)homology theory for von Neumann algebras has been a dream for several generations (see [KR71a, KR71b, JKR72, SS95] and references therein). One’s hope is to have a powerful invariant to distinguish von Neumann algebras. Unfortunately, little positive is known about the Kad...