Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques naturelles / sciences mathematiquesVol. CXLI, No. 35, pp. 65–78 (2010)
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Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques naturelles / sciences mathematiques Vol. CXLI, No. 35, pp. 65–78 (2010) |
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Walks on countable ordinals and selective ultrafiltersS. TodorcevicMatematicki institut, SANU, Kneza Mihaila 35, 11000 Beograd, SrbijaAbstract: In our previous work we have introduced filters on the set of countable ordinals as invariants to standard characteristics of walks in this domain. In this note we examine their projections to the set of natural numbers. Keywords: Ordinal numbers, Minimal walks Classification (MSC2000): 03E10, 03E17 Full text of the article: (for faster download, first choose a mirror)
Electronic fulltext finalized on: 3 Oct 2010. This page was last modified: 20 Jun 2011.
© 2010 Mathematical Institute of the Serbian Academy of Science and Arts
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