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KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
2017 (English)In: Hyponormal Quantization of Planar Domains: Exponential Transform in Dimension Two, Springer, 2017, 93-117 p.Chapter in book (Refereed)
Abstract [en]

In this chapter we present the results of our numerical experiments concerning zeros of exponential polynomials, with pictures indicating asymptotic distributions (or, at least, the distribution of the first 50–100 zeros). We also make the corresponding theoretical construction of mother bodies, and compare the two. In many cases there are reasonable, but far from perfect, agreements between the sets where zeros seem to accumulate and the supports of the corresponding mother bodies. And here we reach terra incognito as there is no agreement between the densities: they seem rather to be complementary to each other. In one case we have complete results, with theoretical proofs, namely for the ellipse. Taking a standard ellipse with foci ± 1, the zeros go to the focal segment, with density proportional to (Forumala prsented).while the mother body for the ellipse with uniform mass distribution has density (Forumala prsented). on the same segment.

Place, publisher, year, edition, pages
Springer, 2017. 93-117 p.
Series
Lecture Notes in Mathematics, ISSN 0075-8434 ; 2199
National Category
Mathematics
Identifiers
URN: urn:nbn:se:kth:diva-216719DOI: 10.1007/978-3-319-65810-0_7Scopus ID: 2-s2.0-85030700777ISBN: 9783319658094 (print)OAI: oai:DiVA.org:kth-216719DiVA: diva2:1153936
Note

QC 20171101

Available from: 2017-11-01 Created: 2017-11-01 Last updated: 2017-11-01Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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