Sciweavers

CIE
2006
Springer
13 years 6 months ago
Do Noetherian Modules Have Noetherian Basis Functions?
In Bishop-style constructive algebra it is known that if a module over a commutative ring has a Noetherian basis function, then it is Noetherian. Using countable choice we prove th...
Peter Schuster, Júlia Zappe
CIE
2006
Springer
13 years 8 months ago
Constraints on Hypercomputation
Wegner and Eberbach[Weg04b] have argued that there are fundamental limitations to Turing Machines as a foundation of computability and that these can be overcome by so-called super...
Greg Michaelson, W. Paul Cockshott
CIE
2006
Springer
13 years 8 months ago
Uncomputability Below the Real Halting Problem
Klaus Meer, Martin Ziegler
CIE
2006
Springer
13 years 8 months ago
From a Zoo to a Zoology: Descriptive Complexity for Graph Polynomials
Abstract. We outline a general theory of graph polynomials which covers all the examples we found in the vast literature, in particular, the chromatic polynomial, various generaliz...
Johann A. Makowsky
CIE
2006
Springer
13 years 8 months ago
Complexity-Theoretic Hierarchies
We introduce two hierarchies of unknown ordinal height. The hierarchies are induced by natural fragments of a calculus based on finite types and G
Lars Kristiansen
CIE
2006
Springer
13 years 8 months ago
Forcing with Random Variables and Proof Complexity
or representation theory of groups), and even borrows abstract geometrical concepts like Euler characteristic or Grothendieck ring. However, the most stimulating for proof complexi...
Jan Krajícek
CIE
2006
Springer
13 years 8 months ago
On Graph Isomorphism for Restricted Graph Classes
Abstract. Graph isomorphism (GI) is one of the few remaining problems in NP whose complexity status couldn't be solved by classifying it as being either NP-complete or solvabl...
Johannes Köbler