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» Some Results on Ordered Structures in Toposes
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RML
2006
123views Business» more  RML 2006»
13 years 4 months ago
Some Results on Ordered Structures in Toposes
Abstract. A topos version of Cantor's back and forth theorem is established and used to prove that the ordered structure of the rational numbers Q, < is homogeneous in any ...
Luís A. Sbardellini, Marcelo E. Coniglio
ACS
2007
13 years 4 months ago
Yoneda Structures from 2-toposes
A 2-categorical generalisation of the notion of elementary topos is provided, and some of the properties of the yoneda structure [SW78] it generates are explored. Results enabling ...
Mark Weber
ANOR
2008
69views more  ANOR 2008»
13 years 4 months ago
NP-hardness results for the aggregation of linear orders into median orders
Abstract Given a collection of individual preferences defined on a same finite set of candidates, we consider the problem of aggregating them into a collective preference minimizin...
Olivier Hudry
CONCUR
2007
Springer
13 years 8 months ago
Decidability Results for Well-Structured Transition Systems with Auxiliary Storage
Abstract. We consider the problem of verifying the safety of wellstructured transition systems (WSTS) with auxiliary storage. WSTSs with storage are automata that have (possibly) i...
Rohit Chadha, Mahesh Viswanathan
DATE
2008
IEEE
137views Hardware» more  DATE 2008»
13 years 11 months ago
SPARE - a Scalable algorithm for passive, structure preserving, Parameter-Aware model order REduction
In this paper we describe a flexible and efficient new algorithm for model order reduction of parameterized systems. The method is based on the reformulation of the parametric s...
Jorge Fernandez Villena, Luis Miguel Silveira