Sciweavers

CIE
2005
Springer
13 years 10 months ago
Schnorr Dimension
Following Lutz’s approach to effective (constructive) dimension, we define a notion of dimension for individual sequences based on Schnorr’s concept(s) of randomness. In contr...
Rodney G. Downey, Wolfgang Merkle, Jan Reimann
CIE
2005
Springer
13 years 10 months ago
On the Turing Degrees of Divergence Bounded Computable Reals
The d-c.e. (difference of c.e.) and dbc (divergence bounded computable) reals are two important subclasses of ∆0 2-reals which have very interesting computability-theoretical as...
Robert Rettinger, Xizhong Zheng
CIE
2005
Springer
13 years 10 months ago
A Logical Approach to Abstract Algebra
L APPROACH TO ABSTRACT ALGEBRA THIERRY COQUAND AND HENRI LOMBARDI Recent work in constructive mathematics show that Hilbert’s program works rge part of abstract algebra. Using in...
Thierry Coquand
CIE
2005
Springer
13 years 10 months ago
Formalising Exact Arithmetic in Type Theory
In this work we focus on a formalisation of the algorithms of lazy exact arithmetic `a la Potts and Edalat [1]. We choose the constructive type theory as our formal verification t...
Milad Niqui
CIE
2005
Springer
13 years 10 months ago
Quantum Computing
Harry Buhrman
CIE
2005
Springer
13 years 10 months ago
Recursion and Complexity
1 and 2, and in the last Section 4 of this abstract I will outline very briefly some conclusions about recursion and complexity which I believe that they support. 1 Partial Algebr...
Yiannis N. Moschovakis
CIE
2005
Springer
13 years 10 months ago
How to Compare the Power of Computational Models
We argue that there is currently no satisfactory general framework for comparing the extensional computational power of arbitrary computational models operating over arbitrary doma...
Udi Boker, Nachum Dershowitz
CIE
2005
Springer
13 years 10 months ago
The Computational Complexity of One-Dimensional Sandpiles
Abstract. We prove that the one-dimensional sandpile prediction problem is in AC1 . The previously best known upper bound on the ACi -scale was AC2 . We also prove that it is not i...
Peter Bro Miltersen
CIE
2005
Springer
13 years 10 months ago
Membrane Computing - Current Results and Future Problems
as an abstraction of a population of bio-entities aggregated together in
Francesco Bernardini, Marian Gheorghe, Natalio Kra...
CIE
2005
Springer
13 years 10 months ago
A Thread Algebra with Multi-level Strategic Interleaving
In a previous paper, we developed an algebraic theory of threads and multi-threads based on strategic interleaving. This theory includes a number of plausible interleaving strategi...
Jan A. Bergstra, C. A. Middelburg