Browsing NTNU Open by Author "Winger, Marius Lie"

Now showing items 1-3 of 3

    • A categorical approach to Cuntz-Pimsner C*-algebras 

      Winger, Marius Lie (Master thesis, 2015)
      Using a $C^*$-algebra $A$, a Hilbert $A$-module $E$ and a $C^*$-correspondence $(E,\phi_E)$ we use the language of category theory to construct $\mathcalO_{(E,\phi_E)}(J)$, the Cuntz-Pimsner representation relative to an ...

    • Characterisation of fraction representation transformations of Norwegian preservice teachers 

      Winger, Marius Lie; Solstad, Trygve; Kaspersen, Eivind (Chapter, 2022)
      Learning to use a diverse set of representations to support teaching and understanding is an important and integrated part of Norwegian mathematics teacher education. This study uses a thematic analysis and Duval’s theory ...

    • Using the Rasch Model to Measure Comprehension of Fraction Addition 

      Winger, Marius Lie; Gausen, Julie; Kaspersen, Eivind; Solstad, Trygve (Peer reviewed; Journal article, 2020)
      In this study we investigate whether transformations between different representations of mathematical objects constitute a suitable framework for the assessment of students’ comprehension of fraction addition. Participants ...