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» Computing in Quotient Groups
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SIGMOD
2005
ACM
111views Database» more  SIGMOD 2005»
16 years 2 months ago
Efficient Computation of Multiple Group By Queries
Data analysts need to understand the quality of data in the warehouse. This is often done by issuing many Group By queries on the sets of columns of interest. Since the volume of ...
Zhimin Chen, Vivek R. Narasayya
INTERACT
2003
15 years 3 months ago
The British Human-Computer Interaction Group
: The British HCI Group (BHCIG) is the UK national organisation for all those working in the field of human-computer interaction. It encourages active membership and devolved decis...
Tom McEwan, Nico MacDonald, Gilbert Cockton
MOC
1998
93views more  MOC 1998»
15 years 1 months ago
Computing ray class groups, conductors and discriminants
We use the algorithmic computation of exact sequences of Abelian groups to compute the complete structure of (ZK /m)∗ for an ideal m of a number field K, as well as ray class gr...
Henri Cohen, Francisco Diaz y Diaz, Michel Olivier
ANTS
2008
Springer
106views Algorithms» more  ANTS 2008»
15 years 3 months ago
Computing in Component Groups of Elliptic Curves
Let K be a p-adic local field and E an elliptic curve defined over K. The component group of E is the group E(K)/E0(K), where E0(K) denotes the subgroup of points of good reduction...
J. E. Cremona
AAECC
2004
Springer
63views Algorithms» more  AAECC 2004»
15 years 1 months ago
Computation of the Decomposition Group of a Triangular Ideal
Abstract. This article describes two algorithms in order to search decomposition groups of ideals of polynomials with coefficients in a perfect field when those ideals are generate...
I. Abdeljaouad-Tej, Sébastien Orange, Gu&ea...