Artykuł  

Geometric properties of the lattice of polynomials with integer coefficients

creativeworkseries.issn1232-9274
dc.contributor.authorLipnicki, Artur
dc.contributor.authorŚmietański, Marek J.
dc.date.issued2024
dc.description.abstractThis paper is related to the classic but still being examined issue of approximation of functions by polynomials with integer coefficients. Let $r$, $n$ be positive integers with $n \ge 6r$. Let $\boldsymbol{P}_n \cap \boldsymbol{M}_r$ be the space of polynomials of degree at most $n$ on $[0,1]$ with integer coefficients such that $P^{(k)}(0)/k!$ and $P^{(k)}(1)/k!$ are integers for $k=0,\dots,r-1$ and let $\boldsymbol{P}_n^\mathbb{Z} \cap \boldsymbol{M}_r$ be the additive group of polynomials with integer coefficients. We explore the problem of estimating the minimal distance of elements of $\boldsymbol{P}_n^\mathbb{Z} \cap \boldsymbol{M}_r$ from $\boldsymbol{P}_n \cap \boldsymbol{M}_r$ in $L_2(0,1)$. We give rather precise quantitative estimations for successive minima of $\boldsymbol{P}_n^\mathbb{Z}$ in certain specific cases. At the end, we study properties of the shortest polynomials in some hyperplane in $\boldsymbol{P}_n \cap \boldsymbol{M}_r$.en
dc.description.placeOfPublicationKraków
dc.description.versionwersja wydawnicza
dc.identifier.doihttps://doi.org/10.7494/OpMath.2024.44.4.565
dc.identifier.eissn2300-6919
dc.identifier.issn1232-9274
dc.identifier.urihttps://repo.agh.edu.pl/handle/AGH/108414
dc.language.isoeng
dc.publisherWydawnictwa AGH
dc.rightsAttribution 4.0 International
dc.rights.accessotwarty dostęp
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/legalcode
dc.subjectapproximation by polynomials with integer coefficientsen
dc.subjectlatticeen
dc.subjectcovering radiusen
dc.subjectroots of polynomialen
dc.titleGeometric properties of the lattice of polynomials with integer coefficientsen
dc.title.relatedOpuscula Mathematica
dc.typeartykuł
dspace.entity.typePublication
publicationissue.issueNumberNo. 4
publicationissue.paginationpp. 565-585
publicationvolume.volumeNumberVol. 44
relation.isJournalIssueOfPublication958a565f-0ba8-4db5-bbd6-a87484b6015d
relation.isJournalIssueOfPublication.latestForDiscovery958a565f-0ba8-4db5-bbd6-a87484b6015d
relation.isJournalOfPublication304b3b9b-59b9-4830-9178-93a77e6afbc7
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