• EPW Cubes 

      Iliev, Atanas; Kapustka, Grzegorz; Kapustka, Michal; Ranestad, Kristian (Journal article; Peer reviewed, 2016-08)
      We construct a new 20-dimensional family of projective six-dimensional irreducible holomorphic symplectic manifolds. The elements of this family are deformation equivalent with the Hilbert scheme of three points on a K3 ...
    • Fourier quasicrystals with unit masses. 

      Olevskii, Alexander; Ulanovskii, Alexander (Peer reviewed; Journal article, 2020)
      The sum of δ-measures sitting at the points of a discrete set Λ⊂R forms a Fourier quasicrystal if and only if Λ is the zero set of an exponential polynomial with imaginary frequencies.
    • Hyperkähler fourfolds and Kummer surfaces 

      Ranestad, Kristian; Iliev, Atanas; Kapustka, Grzegorz; Kapustka, Michal Jakub (Journal article; Peer reviewed, 2017-09)
    • Impediments to learning problem-solving in Malawian lower secondary mathematics textbooks 

      Masina, Felix; Mosvold, Reidar (Peer reviewed; Journal article, 2023)
      Background: In a culture where teachers follow the textbook prescriptively, Malawian students perform low in mathematics, and no students reach the problem-solving levels. Aim: To explore reasons for students’ low ...
    • Interpolation of weighted extremal functions 

      Rashkovskii, Alexander (Peer reviewed; Journal article, 2021-03)
      An approach to interpolation of compact subsets of Cn, including Brunn–Minkowski type inequalities for the capacities of the interpolating sets, was developed in [8] by means of plurisubharmonic geodesics between relative ...
    • Longitudinal Effects of the Home Learning Environment and Parental Difficulties on Reading and Math Development Across Grades 1–9 

      Khanolainen, Daria; Psyridou, Maria; Silinskas, Gintautas; Lerkkanen, Marja-Kristiina; Niemi, Pekka (Peer reviewed; Journal article, 2020-10)
      This study focuses on parental reading and mathematical difficulties, the home literacy environment, and the home numeracy environment as well as their predictive role in Finnish children’s reading and mathematical development ...
    • Mathematics and higher-order thinking in early childhood education and care (ECEC) 

      Pollarolo, Enrico; Skarstein, Tuula Helka; Størksen, Ingunn; Kucirkova, Natalia (Peer reviewed; Journal article, 2023)
      This article investigates the perspectives of Norwegian early childhood educators on mathematics and higher-order thinking. Thematic analysis of the connection between mathematics and children’s higher-order thinking skills ...
    • Teaching the concept of zero in a Malawi primary school: illuminating the language and resource challenge 

      Kazima, Mercy; Jakobsen, Arne; Mwadzaangati, Lisnet; Gobede, Fraser (Peer reviewed; Journal article, 2023-03)
      In this paper we discuss findings of a study that investigated the resources and language that teachers in Malawi use to teach the concept of zero. In Malawi primary schools, textual resources available to teachers are ...
    • Wick-rotations of pseudo-Riemannian Lie groups 

      Helleland, Christer (Peer reviewed; Journal article, 2020)
      We study Wick-rotations of left-invariant metrics on Lie groups, using results from real GIT (Helleland and Hervik, 2018; Helleland and Hervik, 2019). An invariant for Wick-rotation of Lie groups is given, and we describe ...