522 search results - page 5 / 105 » Necessary but Not Sufficient |
MSS
2008
IEEE
14 years 11 months ago
2008
IEEE
Maximal elements of a binary relation on compact subsets of a metric space define a choice function. An infinite extension of transitivity is necessary and sufficient for such a c...
102
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CIARP
2006
Springer
15 years 3 months ago
2006
Springer
Abstract. A theoretical analysis for comparing two linear dimensionality reduction (LDR) techniques, namely Fisher's discriminant (FD) and Loog-Duin (LD) dimensionality reduci...
APPML
2010
14 years 11 months ago
2010
We provide two certificates of convexity for arbitrary basic closed semi-algebraic sets of Rn. The first one is based on a necessary and sufficient condition whereas the second one...
101
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DAM
2008
14 years 11 months ago
2008
All sufficient (as well as necessary) conditions for a binary relation on a metric space to admit a maximal element on every nonempty compact subset of its domain that have been f...
JGT
2008
14 years 11 months ago
2008
: A (g, f )-factor of a graph is a subset F of E such that for all v V, g(v) degF(v) f(v). Lovasz gave a necessary and sufficient condition for the existence of a (g, f )-factor...