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JCIT
2008
99views more  JCIT 2008»
13 years 7 months ago
Iterative Operator-Splitting Methods for Stiff Problems in Complex Applications
In this paper we deal with the Landau-LifshitzGilbert equation which describes dynamics of ferromagnetism. Based on the strong nonlinearities a stabilised discretisation method is...
Jürgen Geiser
APAL
2011
13 years 2 months ago
The complexity of central series in nilpotent computable groups
The terms of the upper and lower central series of a nilpotent computable group have computably enumerable Turing degree. We show that the Turing degrees of these terms are indepe...
Barbara F. Csima, Reed Solomon
LICS
2012
IEEE
11 years 10 months ago
Graph Logics with Rational Relations and the Generalized Intersection Problem
Abstract—We investigate some basic questions about the interaction of regular and rational relations on words. The primary motivation comes from the study of logics for querying ...
Pablo Barceló, Diego Figueira, Leonid Libki...
ICDE
1999
IEEE
106views Database» more  ICDE 1999»
14 years 9 months ago
Processing Operations with Restrictions in RDBMS without External Sorting: The Tetris Algorithm
Most operations of the relational algebra or SQL require a sorted stream of tuples for efficient processing. Therefore, processing complex relational queries relies on efficient a...
Volker Markl, Martin Zirkel, Rudolf Bayer
AMAI
2004
Springer
14 years 1 months ago
Unrestricted vs Restricted Cut in a Tableau Method for Boolean Circuits
This paper studies the relative proof complexity of variations of a tableau method for Boolean circuit satisfiability checking obtained by restricting the use of the cut rule in s...
Matti Järvisalo, Tommi A. Junttila, Ilkka Nie...