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131
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FFA
2007
15 years 3 months ago
2007
In this paper we construct some algebraic geometric error-correcting codes on surfaces whose Neron-Severi group has low rank. If the rank of the Neron-Severi group is 1, the inters...
102
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ACS
2005
15 years 3 months ago
2005
A `2-group' is a category equipped with a multiplication satisfying laws like those of a group. Just as groups have representations on vector spaces, 2-groups have representa...
151
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HASKELL
2007
ACM
15 years 7 months ago
2007
ACM
We propose an extension to list comprehensions that makes it easy to express the kind of queries one would write in SQL using ORDER BY, GROUP BY, and LIMIT. Our extension adds exp...
123
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GROUP
2007
ACM
15 years 7 months ago
2007
ACM
When large groups cooperate, issues of conflict and control surface because of differences in perspective. Managing such diverse views is a persistent problem in cooperative group...
115
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ENDM
2007
15 years 3 months ago
2007
For any finite abelian group G and any subset S ⊆ G, we determine the connectivity of the addition Cayley graph induced by S on G. Moreover, we show that if this graph is not c...