This study demonstrates that an integrated operator can benefit from cost savings, customer retention and prevention of revenue erosion by FMC migration strategy with introduction of advanced service packages. This development is driven by increasing importance of mobile network capabilities and services, as well as the lessening gap between fixed and mobile systems, in terms of technological m...

We evoke some poetical aspects of a new kind of logical truth (an inner quantum truth) embodying both physical and mathematical concepts, which can be viewed at the same time as a constructive mathematical object, as well as a pure platonic idea.

And while I have sought to shew the naturalist how a few mathematical concepts and dynamical principles may help and guide him, I have tried to shew the mathematician a field for his labour—a field which few have entered and no man explored. Here may be found homely problems, such as often tax the highest skill of the mathematician, and reward his ingenuity all the more for their trivial associ...

A guide for those who wish to understand and to work with the hydro-geochemical equilibrium code CHESS together with introductory aspects of thermodynamic principles and surface com-plexation chemistry. The CHESS model was initially written at the Ecole des Mines de Paris within the framework of the R&D program on Management and Storage of Radioactive Waste

The five papers that comprise this special issue entitled ‘‘The conceptual change approach to mathematics learning and teaching,’’ attempt to demonstrate that the conceptual change approach can be a fruitful component of a theory of mathematical learning and instruction. Some of them focus on issues of learning i.e., on presenting evidence that the conceptual change approach provides a powerful...

Aiming at developing a theoretical framework for the formal study of NP-hard optimization problems, which is built on precise mathematical foundations, we have focused on structural properties of optimization problems related to approximative issue. From the observation that, intuitively, there are many connections among categorical concepts and structural complexity notions, in this work we pr...

Fuzzy sets, rough sets, and later on IF sets became useful mathematical tools for solving various decision making problems and data mining problems. Molodtsov introduced another concept soft set theory as a general frame work for reasoning about vague concepts. Since most of the data collected are either linguistic variable or consist of vague concepts so IF set and soft set help a lot in data ...

We investigate the relation between two quantitative measures characterizing short term memory in input driven dynamical systems, namely the short term memory capacity (MC) [2] and the Fisher memory curve (FMC) [1]. We show that under some assumptions, the two quantities can be interpreted as squared ‘Mahalanobis’ norms of images of the input vector under the system’s dynamics and that even tho...

Der folgende Artikel gibt einen Kurzüberblick über ein Promotionsvorhaben im Bereich der Quantitativen Modellierung. In der Dissertation soll die Modellierungsmethodik FMC-QE (Fundamental Modeling Concepts for Quantitative Evaluation) beschrieben werden. FMC-QE basiert auf der Modellierungssprache FMC sowie den Modellierungsund Berechnungsmethoden der Warteschlangentheorie und der Zeitbehaftete...

Teaching mathematics in a high school and in a community college in the New York City, I have noticed that students grasp mathematical concepts more quickly and understand them better when a connection between the concept and the world of business is established. Students were visibly more interested and involved when business applications were presented first, laying the groundwork for technol...