Sciweavers

532 search results - page 13 / 107
» Graphically abelian groups
Sort
View
JSYML
2006
76views more  JSYML 2006»
13 years 9 months ago
Diagonal actions and Borel equivalence relations
We investigate diagonal actions of Polish groups and the related intersection operator on closed subgroups of the acting group. The Borelness of the diagonal orbit equivalence rela...
Longyun Ding, Su Gao
IJAC
2010
96views more  IJAC 2010»
13 years 7 months ago
Coxeter Covers of the Classical Coxeter Groups
Let C(T) be a generalized Coxeter group, which has a natural map onto one of the classical Coxeter groups, either Bn or Dn. Let CY (T) be a natural quotient of C(T), and if C(T) is...
Meirav Amram, Robert Shwartz, Mina Teicher
ICALP
2007
Springer
14 years 1 months ago
Affine Systems of Equations and Counting Infinitary Logic
We study the definability of constraint satisfaction problems (CSP) in various fixed-point and infinitary logics. We show that testing the solvability of systems of equations over...
Albert Atserias, Andrei A. Bulatov, Anuj Dawar
ALT
2008
Springer
14 years 6 months ago
Active Learning of Group-Structured Environments
The question investigated in this paper is to what extent an input representation influences the success of learning, in particular from the point of view of analyzing agents that...
Gábor Bartók, Csaba Szepesvár...
JSC
2000
60views more  JSC 2000»
13 years 9 months ago
Generic Extensions and Generic Polynomials
This paper presents a generalization of a theorem of Saltman on the existence of generic extensions with group A G over an infinite field K, where A is abelian, using less restri...
Arne Ledet