In this paper, we use a feedback to change the orientation and the shape of the center manifold of a system with uncontrollable linearization. This change will directly affect the reduced dynamics on the center manifold, and hence will change the stability properties of the original system.

In an increasingly competitive business environment characterized by more globalization, deregulation and technological advances, companies have been looking for ways of differentiating their products and services and also rethinking their business model through leaner operations and reduced costs. In this context, a new practice that has recently gained a lot of attention is the offshore outso...

We present iJulienne, a trace analyzer for conditional rewriting logic theories that can be used to compute abstract views of Maude executions that help users understand and debug programs. Given a Maude execution trace and a slicing criterion which consists of a set of target symbols occurring in a selected state of the trace, iJulienne is able to track back reverse dependences and causality a...

Halothane and enflurane administration increased the plasma GSH-Px activity and reduced zinc levels. In addition, they lowered SOD and GSH-Px activities and trace element levels on erythrocytes. Isoflurane had no effect on plasma antioxidant enzymes, but, similar to the other, isoflurane decreased the plasma zinc levels, erythrocyte SOD and GSH-Px activities and trace element levels.

Let (A,φ) be the reduced free product of infinitely many C–algebras (Aι, φι) with respect to faithful states. Assume that the Aι are not too small, in a specific sense. If φ is a trace then the positive cone of K0(A) is determined entirely by K0(φ). If, furthermore, the image of K0(φ) is dense in R, then A has real rank zero. On the other hand, if φ is not a trace then A is simple and purely in...

Any central simple algebra over a field of characteristic not two has a well-defined non-singular quadratic form called the trace form attached to it. This quadratic form was studied in [6] from the viewpoint of the algebraic theory of quadratic forms. In this article we examine a generalization of trace forms to “scaled trace forms” which are defined via the reduced trace map together with sca...

We compute the weights, i.e. the values at the minimal idempotents, for the Markov trace on the Hecke algebra of type Bn and type Dn. In order to prove the weight formula, we define representations of the Hecke algebra of type B onto a reduced Hecke Algebra of type A. To compute the weights for type D we use the inclusion of the Hecke algebra of type D into the Hecke algebra of type B. Introduc...

Deductive databases manage large quantities of data and, in general, in a set-oriented way. The existing systems of explanation for deductive databases do not take these constraints into account. We propose a tracing technique which consists of integrating a "relational" trace and an instrumented meta-interpreter using substitution sets. The relational trace e ciently gives precise information ...

Through their communications mix, firms make decisions that have implications for the ease with which consumers can search for product information. A common intuition is that firms would like to make information easily available to consumers, but choose not to because facilitating consumer search is costly to them. The main result of this paper counters this intuition – firms may not want to ma...