72 search results - page 5 / 15 » A note on a theorem of Ax |
CORR
2008
Springer
14 years 10 months ago
2008
Springer
In this note we prove a generalization of the flat extension theorem of Curto and Fialkow [4] for truncated moment matrices. It applies to moment matrices indexed by an arbitrary s...
COMBINATORICS
2007
14 years 10 months ago
2007
In this note we present a short proof of the following result, which is a slight extension of a nice 2005 theorem by Kano and Yu. Let e be an edge of an rregular graph G. If G has...
JCT
2008
14 years 10 months ago
2008
A proper vertex coloring of a graph is equitable if the sizes of its color classes differ by at most one. In this note, we prove that if G is a graph such that for each edge xy E...
120
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COMBINATORICS
2002
14 years 9 months ago
2002
Erdos, Rubin, and Taylor found a nice correspondence between the minimum order of a complete bipartite graph that is not r-choosable and the minimum number of edges in an r-unifor...
101
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TPHOL
1997
IEEE
15 years 2 months ago
1997
IEEE
This note lists references which address –in some way or another– the problems relating to formal manipulation of logical expressions where terms can fail to denote. Reference...