Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/34752
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dc.contributor.authorAmeur, Yacin-
dc.contributor.authorOrtega Cerdà, Joaquim-
dc.date.accessioned2013-04-22T08:52:37Z-
dc.date.available2013-04-22T08:52:37Z-
dc.date.issued2012-10-01-
dc.identifier.issn0022-1236-
dc.identifier.urihttp://hdl.handle.net/2445/34752-
dc.description.abstractLet $Q$ be a suitable real function on $C$. An $n$-Fekete set corresponding to $Q$ is a subset ${Z_{n1}},\dotsb, Z_{nn}}$ of $C$ which maximizes the expression $\Pi^n_i_{<j}|Z_{ni} - Z_{nj}|^2 e^-^{n(Q(Z_n_1)+\dotsb+Q(Z_{nn}))}$. It is well known that, under reasonable conditions on $Q$, there is a compact set $S$ known as the 'droplet' such that the measures $\mu_n n^{-1} (\delta_{zn1}+\dots+\delta_{znn})$ converges to the equilibrium measure $\Delta Q.1 _S$d$A$ as $n \rightarrow \infty$. In this note we prove that Fekete sets are, in a sense, maximally spread out with respect to the equilibrium measure. In general, our results apply only to a part of the Fekete set, which is at a certain distance away from the boundary of the droplet. However, for the potential $Q=|Z|^2$ we obtain results which hold globally, and we conjecture that such global results are true for a wide range of potentials.-
dc.format.extent37 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherElsevier-
dc.relation.isformatofVersió postprint del document publicat a: http://dx.doi.org/10.1016/j.jfa.2012.06.011-
dc.relation.ispartofJournal of Functional Analysis, 2012, vol. 263, num. 7, p. 1825-1861-
dc.relation.urihttp://dx.doi.org/10.1016/j.jfa.2012.06.011-
dc.rights(c) Elsevier, 2012-
dc.subject.classificationTeoria del potencial (Matemàtica)-
dc.subject.otherPotential theory (Mathematics)-
dc.titleBeurling-Landau densities of weighted Fekete sets and correlation kernel estimates-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/acceptedVersion-
dc.identifier.idgrec615425-
dc.date.updated2013-04-22T08:52:37Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Matemàtiques i Informàtica)

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