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EJC
2010
15 years 6 months ago
A linear equation for Minkowski sums of polytopes relatively in general position
The objective of this paper is to study a special family of Minkowski sums, that is of polytopes relatively in general position. We show that the maximum number of faces in the su...
Komei Fukuda, Christophe Weibel
DCG
2008
70views more  DCG 2008»
15 years 6 months ago
Decomposability of Polytopes
Abstract. We reformulate a known characterization of decomposability of polytopes in a way which may be more computationally convenient, and offer a more transparent proof. We appl...
Krzysztof Przeslawski, David Yost
DM
2008
61views more  DM 2008»
15 years 6 months ago
Wilf classification of three and four letter signed patterns
We give some new Wilf equivalences for signed patterns which allow the complete classification of signed patterns of lengths three and four. The problem is considered for pattern a...
W. M. B. Dukes, Toufik Mansour, Astrid Reifegerste
ENTCS
2008
67views more  ENTCS 2008»
15 years 6 months ago
Notions of Probabilistic Computability on Represented Spaces
: We define and compare several probabilistic notions of computability for mappings from represented spaces (that are equipped with a measure or outer measure) into computable metr...
Volker Bosserhoff
AML
2006
85views more  AML 2006»
15 years 6 months ago
Arithmetical Sacks Forcing
Abstract. We answer a question of Jockusch by constructing a hyperimmunefree minimal degree below a 1-generic one. To do this we introduce a new forcing notion called arithmetical ...
Rod Downey, Liang Yu