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CPC
2004
92views more  CPC 2004»
13 years 9 months ago
Large Topological Cliques in Graphs Without a 4-Cycle
Mader asked whether every C4-free graph G contains a subdivision of a complete graph whose order is at least linear in the average degree of G. We show that there is a subdivision...
Daniela Kühn, Deryk Osthus
MST
2008
119views more  MST 2008»
13 years 10 months ago
Logical Equivalence for Subtyping Object and Recursive Types
Subtyping in first order object calculi is studied with respect to the logical semantics obtained by identifying terms that satisfy the same set of predicates, as formalised throu...
Steffen van Bakel, Ugo de'Liguoro
AMC
2008
92views more  AMC 2008»
13 years 10 months ago
Explicit multi-step peer methods for special second-order differential equations
The construction of s-stage explicit two- and three-step peer methods of order p = 2s and p = 3s is considered for the solution of non-stiff second order initial value problems wh...
Stefan Jebens, Rüdiger Weiner, Helmut Podhais...
COMPUTING
1998
69views more  COMPUTING 1998»
13 years 9 months ago
Multilevel Norms for H-1/2
We give some estimates related to nite element multilevel splittings and Sobolev norms of negative order. Basically, results for the positive order case are carried over by dualit...
P. Oswald
CORR
2008
Springer
87views Education» more  CORR 2008»
13 years 10 months ago
Two-Level Concept-Oriented Data Model
In this paper we describe a new approach to data modelling called the concept-oriented model (CoM). This model is based on the formalism of nested ordered sets which uses inclusion...
Alexandr A. Savinov