Elsevier bv jun 1999 (3 resultados)

Buch. Condición: Neu. Neuware - This book proposes that usage-based charging schemes are essential to generate the incentives necessary for efficient operation of multiservice networks. The rapid development of network technology is enabling sophisticated new services and applications which demand new charging models. The same technology provides the means to operate the right charging schemes.Some of the work done in the European collaborative project CA$hMAN (Charging and Accounting Schemes in Multiservice ATM Networks). This project combined performance and economic models of network resource usage and cutomer utility to construct simple but effective charging schemes which were implemented and trialled in an advanced management platform.…

Buch. Condición: Neu. Neuware - This book deals with numerical methods for solving large sparse linear systems of equations, particularly those arising from the discretization of partial differential equations. It covers both direct and iterative methods. Direct methods which are considered are variants of Gaussian elimination and fast solvers for separable partial differential equations in rectangular domains. The book reviews the classical iterative methods like Jacobi, Gauss-Seidel and alternating directions algorithms. A particular emphasis is put on the conjugate gradient as well as conjugate gradient -like methods for non symmetric problems. Most efficient preconditioners used to speed up convergence are studied. A chapter is devoted to the multigrid method and the book ends with domain decomposition algorithms that are well suited for solving linear systems on parallel computers.…

Buch. Condición: Neu. Neuware - This book treats modal logic as a theory, with several subtheories, such as completeness theory, correspondence theory, duality theory and transfer theory and is intended as a course in modal logic for students who have had prior contact with modal logic and who wish to study it more deeply. It presupposes training in mathematical or logic. Very little specific knowledge is presupposed, most results which are needed are proved in this book.…