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Sigrid Grepstad

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Sigrid Grepstad

Associate Professor
Department of Mathematical Sciences

sigrid.grepstad@ntnu.no
Sentralbygg 2, Gløshaugen
Publications Teaching Outreach

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2025

  • Grepstad, Sigrid. (2025) Bounded Distance Equivalence of Cut-and-Project Sets and Equidecomposability. International Mathematics Research Notices (IMRN)
    Academic article

2023

  • Brevig, Ole Fredrik; Grepstad, Sigrid. (2023) Hilbert points in Hilbert space-valued L^p spaces. North-Western European Journal of Mathematics
    Academic article

2022

  • Grepstad, Sigrid; Neumüller, Mario; Zafeiropoulos, Agamemnon. (2022) On the order of magnitude of Sudler products II. International Journal of Number Theory
    Academic article
  • Brevig, Ole Fredrik; Grepstad, Sigrid; Instanes, Sarah May. (2022) F. Wiener’s Trick and an Extremal Problem for H^p. Computational methods in Function Theory
    Academic article

2020

  • Grepstad, Sigrid; Kaltenböck, Lisa; Neumüller, Mario. (2020) On the asymptotic behaviour of the sine product prod_1^n |2sin pi*r*a|. Walter de Gruyter (De Gruyter)
    Academic chapter/article/Conference paper

2019

  • Grepstad, Sigrid; Kaltenböck, Lisa; Neumüller, Mario. (2019) A positive lower bound for liminf prod_1^N |2 sin pi*r*phi|. Proceedings of the American Mathematical Society
    Academic article

2018

  • Grepstad, Sigrid; Lev, Nir. (2018) Riesz bases, Meyer's quasicrystals, and bounded remainder sets. Transactions of the American Mathematical Society
    Academic article

2017

  • Grepstad, Sigrid; Larcher, Gerhard. (2017) On pair correlation and discrepancy. Archiv der Mathematik
    Academic article
  • Grepstad, Sigrid; Mario, Neumüller. (2017) Asymptotic behaviour of the Sudler product of sines for quadratic irrationals. Journal of Mathematical Analysis and Applications
    Academic article

2016

  • Agora, Elona; Grepstad, Sigrid; Kolountzakis, Mihail. (2016) Spectra for cubes in products of finite cyclic groups. Proceedings of the American Mathematical Society
    Academic article
  • Grepstad, Sigrid; Larcher, Gerhard. (2016) Sets of bounded remainder for the continuous irrational rotation on [0,1)^2. Acta Arithmetica
    Academic article

2015

  • Grepstad, Sigrid; Lev, Nir. (2015) Sets of bounded discrepancy for multi-dimensional irrational rotation. Geometric and Functional Analysis
    Academic article

2014

  • Grepstad, Sigrid; Lev, Nir. (2014) Multi-tiling and Riesz bases. Advances in Mathematics
    Academic article
  • Grepstad, Sigrid; Lev, Nir. (2014) Universal sampling, quasicrystals and bounded remainder sets. Comptes rendus. Mathematique
    Academic article

Journal publications

  • Grepstad, Sigrid. (2025) Bounded Distance Equivalence of Cut-and-Project Sets and Equidecomposability. International Mathematics Research Notices (IMRN)
    Academic article
  • Brevig, Ole Fredrik; Grepstad, Sigrid. (2023) Hilbert points in Hilbert space-valued L^p spaces. North-Western European Journal of Mathematics
    Academic article
  • Grepstad, Sigrid; Neumüller, Mario; Zafeiropoulos, Agamemnon. (2022) On the order of magnitude of Sudler products II. International Journal of Number Theory
    Academic article
  • Brevig, Ole Fredrik; Grepstad, Sigrid; Instanes, Sarah May. (2022) F. Wiener’s Trick and an Extremal Problem for H^p. Computational methods in Function Theory
    Academic article
  • Grepstad, Sigrid; Kaltenböck, Lisa; Neumüller, Mario. (2019) A positive lower bound for liminf prod_1^N |2 sin pi*r*phi|. Proceedings of the American Mathematical Society
    Academic article
  • Grepstad, Sigrid; Lev, Nir. (2018) Riesz bases, Meyer's quasicrystals, and bounded remainder sets. Transactions of the American Mathematical Society
    Academic article
  • Grepstad, Sigrid; Larcher, Gerhard. (2017) On pair correlation and discrepancy. Archiv der Mathematik
    Academic article
  • Grepstad, Sigrid; Mario, Neumüller. (2017) Asymptotic behaviour of the Sudler product of sines for quadratic irrationals. Journal of Mathematical Analysis and Applications
    Academic article
  • Agora, Elona; Grepstad, Sigrid; Kolountzakis, Mihail. (2016) Spectra for cubes in products of finite cyclic groups. Proceedings of the American Mathematical Society
    Academic article
  • Grepstad, Sigrid; Larcher, Gerhard. (2016) Sets of bounded remainder for the continuous irrational rotation on [0,1)^2. Acta Arithmetica
    Academic article
  • Grepstad, Sigrid; Lev, Nir. (2015) Sets of bounded discrepancy for multi-dimensional irrational rotation. Geometric and Functional Analysis
    Academic article
  • Grepstad, Sigrid; Lev, Nir. (2014) Multi-tiling and Riesz bases. Advances in Mathematics
    Academic article
  • Grepstad, Sigrid; Lev, Nir. (2014) Universal sampling, quasicrystals and bounded remainder sets. Comptes rendus. Mathematique
    Academic article

Part of book/report

  • Grepstad, Sigrid; Kaltenböck, Lisa; Neumüller, Mario. (2020) On the asymptotic behaviour of the sine product prod_1^n |2sin pi*r*a|. Walter de Gruyter (De Gruyter)
    Academic chapter/article/Conference paper

Teaching

Courses

  • TMA4105 - Mathematics 2 - Multivariable calculus and vector analysis

Outreach

2018

  • Academic lecture
    Grepstad, Sigrid. (2018) Asymptotic behaviour of the Sudler product of sines and a conjecture of Lubinsky. CIRM 6th International Conference on Uniform Distribution Theory -- UDT2018 , Marseilles 2018-10-01 - 2018-10-05
  • Academic lecture
    Grepstad, Sigrid. (2018) Riesz bases, Meyer's quasicrystals and bounded remainder sets. ICERM Frame Theory and Exponential Bases , Providence, Rhode Island 2018-06-04 - 2018-06-08
  • Academic lecture
    Grepstad, Sigrid. (2018) A positive lower bound for liminf prod_1^N |2 sin pi*r*varphi|. RICAM RICAM workshop on Discrepancy , Linz 2018-11-26 - 2018-11-30

2010

  • Poster
    Fløystad, Jostein Bø; Grepstad, Sigrid; Mo, Frode; Mathiesen, Ragnvald; Tybell, Thomas; Breiby, Dag Werner. (2010) Domain size distributions in ferroelectric PbTiO3 thin films. 1st annual workshop in the Norwegian PhD Network on Nanotechnology for Microsystems 2010-05-29 - 2010-06-02

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