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» The complexity of Tarski's fixed point theorem
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TCS
2008
13 years 4 months ago
The complexity of Tarski's fixed point theorem
Ching-Lueh Chang, Yuh-Dauh Lyuu, Yen-Wu Ti
CSL
2009
Springer
13 years 8 months ago
Fixed-Point Definability and Polynomial Time
My talk will be a survey of recent results about the quest for a logic capturing polynomial time. In a fundamental study of database query languages, Chandra and Harel [4] first ra...
Martin Grohe
BIRTHDAY
2010
Springer
13 years 5 months ago
Fixed-Point Definability and Polynomial Time on Chordal Graphs and Line Graphs
The question of whether there is a logic that captures polynomial time was formulated by Yuri Gurevich in 1988. It is still wide open and regarded as one of the main open problems...
Martin Grohe
POPL
2008
ACM
14 years 4 months ago
The intensional content of Rice's theorem
The proofs of major results of Computability Theory like Rice, Rice-Shapiro or Kleene's fixed point theorem hide more information of what is usually expressed in their respec...
Andrea Asperti
VLDB
1987
ACM
104views Database» more  VLDB 1987»
13 years 8 months ago
Magic Functions: A Technique to Optimize Extended Datalog Recursive Programs
Severalmethodshavebeenproposedto compile recursive Datalog programs. The most well-known perform a rewriting of rules using MAGIC or PROBLEM predicates in order to push selections...
Georges Gardarin