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dc.creatorPinho S. T. R.-
dc.creatorLobão T. C. Petit-
dc.date2000-
dc.date.accessioned2013-05-30T00:33:10Z-
dc.date.available2013-05-30T00:33:10Z-
dc.date.issued2013-05-30-
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332000000400026-
dc.identifierhttp://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2000&volume=30&issue=4&spage=772-
dc.identifier.urihttp://koha.mediu.edu.my:8181/jspui/handle/123456789/3116-
dc.descriptionRecent studies of the effects of geometric fluctuations, associated with aperiodic exchange inter-actions, on the critical behavior of ferromagnetic Ising models on hierarchical lattices, were the motivation to investigate some properties of two-letter sequences generated by uniform substitutions. We rigorously identify the substitutions that generate either periodic or aperiodic (almost periodic or not) sequences. For instance, two known substitutions, the Thue-Morse and the period-doubling rules, generate aperiodic sequences of almost periodic type.-
dc.publisherSociedade Brasileira de Física-
dc.sourceBrazilian Journal of Physics-
dc.titleRigorous results for aperiodic and almost periodic substitution sequences-
Appears in Collections:Physics and Astronomy

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