Sciweavers

1390 search results - page 29 / 278
» On the Algebraic Structure of Convergence
Sort
View
ISQED
2007
IEEE
254views Hardware» more  ISQED 2007»
15 years 6 months ago
An Aggregation-Based Algebraic Multigrid Method for Power Grid Analysis
ct This paper develops an aggregation-based algebraic multigrid (AbAMG) method to efficiently analyze the power grids. Different from the conventional algebraic multigrid (AMG) sc...
Pei-Yu Huang, Huan-Yu Chou, Yu-Min Lee
COMPUTING
2007
103views more  COMPUTING 2007»
14 years 11 months ago
An algebraic approach for H-matrix preconditioners
Hierarchical matrices (H-matrices) approximate matrices in a data-sparse way, and the approximate arithmetic for H-matrices is almost optimal. In this paper we present an algebrai...
S. Oliveira, F. Yang
DBPL
1991
Springer
98views Database» more  DBPL 1991»
15 years 3 months ago
Structural Recursion as a Query Language
We propose a programming paradigm that tries to get close to both the semantic simplicity of relational algebra, and the expressive power of unrestricted programming languages. It...
Val Tannen, Peter Buneman, Shamim A. Naqvi
KI
2005
Springer
15 years 5 months ago
Dependency Calculus: Reasoning in a General Point Relation Algebra
The point algebra is a fundamental formal calculus for spatial and temporal reasoning. We present a new generalization that meets all requirements to describe dependencies on netw...
Marco Ragni, Alexander Scivos
IPL
2007
97views more  IPL 2007»
14 years 11 months ago
What is a free name in a process algebra?
There are two popular approaches to specifying the semantics of process algebras: labelled transition semantics and reaction semantics. While the notion of free name is rather unp...
Flemming Nielson, Hanne Riis Nielson, Henrik Pileg...