Sciweavers

725 search results - page 46 / 145
» Descriptive Set Theory of Families of Small Sets
Sort
View
CORR
2007
Springer
119views Education» more  CORR 2007»
14 years 9 months ago
Hadwiger and Helly-type theorems for disjoint unit spheres
Let S be an ordered set of disjoint unit spheres in R3 . We show that if every subset of at most six spheres from S admits a line transversal respecting the ordering, then the ent...
Otfried Cheong, Xavier Goaoc, Andreas Holmsen, Syl...
DOOD
1993
Springer
135views Database» more  DOOD 1993»
15 years 1 months ago
A Deductive and Typed Object-Oriented Language
In this paper we introduce a logical query language extended with object-oriented typing facilities. This language, called DTL (from DataTypeLog), can be seen as an extension of Da...
René Bal, Herman Balsters
BIRTHDAY
2010
Springer
14 years 10 months ago
Metrization Theorem for Space-Times: From Urysohn's Problem towards Physically Useful Constructive Mathematics
In the early 1920s, Pavel Urysohn proved his famous lemma (sometimes referred to as "first non-trivial result of point set topology"). Among other applications, this lemm...
Vladik Kreinovich
CISS
2008
IEEE
15 years 4 months ago
Information theory based estimator of the number of sources in a sparse linear mixing model
—In this paper we present an Information Theoretic Estimator for the number of sources mutually disjoint in a linear mixing model. The approach follows the Minimum Description Le...
Radu Balan
FOIS
2006
14 years 11 months ago
Approximation of Ontologies in CASL
In this paper we present methods to generate a Description Logic (DL) theory from a given First Order Logic (FOL) theory, such that each DL axiom is entailed by the given FOL theor...
Klaus Lüttich