<p>The local <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="13366_2025_784_Article_IEq1.gif" Format="GIF" Height="14" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(h^*\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mi>h</mi> <mo>∗</mo> </msup> </math></EquationSource> </InlineEquation>-polynomial of a lattice polytope is an important invariant arising in Ehrhart theory. Our focus is on lattice simplices presented in Hermite normal form with a single non-trivial row. We prove that when the off-diagonal entries are fixed, the distribution of coefficients for the local <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="13366_2025_784_Article_IEq1.gif" Format="GIF" Height="14" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(h^*\)</EquationSource> <EquationSource Format="MATHML"><math> <msup> <mi>h</mi> <mo>∗</mo> </msup> </math></EquationSource> </InlineEquation>-polynomial of these simplices has a limit as the normalized volume goes to infinity. Further, this limiting distribution is determined by the coefficients for a particular choice of normalized volume. We also provide an analysis of two specific families of such simplices to illustrate and motivate our main result.</p>

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Local \(h^*\)-polynomials for one-row Hermite normal form simplices

  • Esme Bajo,
  • Benjamin Braun,
  • Giulia Codenotti,
  • Johannes Hofscheier,
  • Andrés R. Vindas-Meléndez

摘要

The local \(h^*\) h -polynomial of a lattice polytope is an important invariant arising in Ehrhart theory. Our focus is on lattice simplices presented in Hermite normal form with a single non-trivial row. We prove that when the off-diagonal entries are fixed, the distribution of coefficients for the local \(h^*\) h -polynomial of these simplices has a limit as the normalized volume goes to infinity. Further, this limiting distribution is determined by the coefficients for a particular choice of normalized volume. We also provide an analysis of two specific families of such simplices to illustrate and motivate our main result.