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AML
2005
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14 years 11 days ago
Axiomatization of local-global principles for pp-formulas in spaces of orderings
es of orderings (an abstract version of real spectras of formally real fields), for which they are expressed as local-global principles: A property of quadratic forms (expressed as...
Vincent Astier, Marcus Tressl
JSYML
2008
66views more  JSYML 2008»
14 years 13 days ago
Special groups whose isometry relation is a finite union of cosets
0-stable 0-categorical linked quaternionic mappings are studied and are shown to correspond (in some sense) to special groups which are 0stable, 0-categorical, satisfy AP(3) and ha...
Vincent Astier
FFA
2006
116views more  FFA 2006»
14 years 14 days ago
Amorphic association schemes with negative Latin square-type graphs
Applying results from partial difference sets, quadratic forms, and recent results of Brouwer and Van Dam, we construct the first known amorphic association scheme with negative La...
James A. Davis, Qing Xiang