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Indefinite integrals from Wronskians and related linear secondorder differential equations
(Peer reviewed; Journal article, 2021)Many indefinite integrals are derived for Bessel functions and associated Legendre functions from particular transformations of their differential equations which are closely linked to Wronskians. A large portion of the ... 
Indefinite integrals involving the exponential integral function
(Peer reviewed; Journal article, 2021) 
Investigating technical and pedagogical usability issues of collaborative learning with wikis
(Journal article; Peer reviewed, 2012)Wikis have been recently promoted as tools that foster collaborative learning. However, there has been little research devoted to the criteria that are suitable to address issues pertinent to collaborative learning. This ... 
Investigating the Affordances and Constraints of SimReal for Mathematical Learning : A Case Study in Teacher Education
(Chapter; Peer reviewed, 2019)Visualizations tools are one of the most innovative technologies that emerged the last few years in educational settings. They provide new potentialities for mathematical learning by means of dynamic animations and ... 
Investigating the affordances of a flipped mathematics classroom from an activity theoretical perspective
(Peer reviewed; Journal article, 2020)Flipped Classroom as a pedagogical framework has gained popularity at secondary and tertiary levels of mathematics education, but there is a lack of research based on a solid theoretical foundation. This article considers ... 
An Itô Formula for rough partial differential equations and some applications
(Peer reviewed; Journal article, 2020)We investigate existence, uniqueness and regularity for solutions of rough parabolic equations of the form ∂tu−Atu−f = (X˙t(x)·∇+Y˙ t(x))u on [0, T ]×Rd . To do so, we introduce a concept of “differential rough driver”, ... 
“The joy that engineers and mathematicians have come together.” Richard von Mises’ foundation of ZAMM, and its “Tasks and Goals” (1920/21)
(Peer reviewed; Journal article, 2020) 
Kindergarten teachers’ accounts of their developing mathematical practice
(Journal article; Peer reviewed, 2012)This study explores kindergarten teachers’ accounts of their developing mathematical practice in the context of their participation in a developmental research project. Observations and interviews were analysed to elaborate ... 
Kindergarten teachers’ orchestration of mathematical activities afforded by technology: agency and mediation
(Journal article; Peer reviewed, 2016) 
Learning to teach a mathematical emotional orientation
(For the Learning of Mathematics; no. 40, Chapter; Peer reviewed, 2020) 
A letter from Malevich to Semevsky about Kovalevskaya
(Peer reviewed; Journal article, 2021) 
Linear instability of mixed convection of cold water in a porous layer induced by viscous dissipation
(Journal article; Peer reviewed, 2009)An analysis of linear stability of the stationary laminar Darcy flow in a horizontal porous layer is performed. The porous layer is saturated with cold water. The upper plane boundary is assumed to be subject to heat ... 
Mapping properties for the Bargmann transform on modulation spaces
(Journal article; Peer reviewed, 2012)We investigate mapping properties for the Bargmann transform and prove that this transform is isometric and bijective from modulation spaces to convenient Banach spaces of analytic functions. We also present some consequences. ... 
Mathematical learning opportunities in kindergarten through the use of digital tools: Affordances and constraints
(Journal article; Peer reviewed, 2013)This study aims at scrutinising the mathematical learning opportunities of children engaging with digital tools and the emerging affordances and constraints faced in such settings. By adopting a sociocultural perspective ... 
Mathematics teaching development: Learning from developmental research in Norway
(Journal article; Peer reviewed, 2014)This paper is a product of mathematics teaching developmental research projects based on establishing communities of inquiry comprising schoolteachers working at all grades and universitybased teacher educator/researchers ... 
Mathematics Video Podcasts as Integrated Elements of Online Lessons in Further University Education: InService Teachers’ Flow Experiences
(Journal article; Peer reviewed, 2017)This casestudy examined inservice teachers’ perceptions of learning by means of online mathematic lessons consisting of a mix of text and video podcasts. The investigation is part of further university education directed ... 
Mediated action in teachers’ discussions about mathematics tasks
(Journal article; Peer reviewed, 2012)This paper presents analyses of teachers’ discussions within mathematics teaching developmental research projects, taking mediation as the central construct. The relations in the socalled ‘didactic triangle’ form the basic ... 
Methods and Materials for Professional Development of Lecturers
(Chapter, 2021) 
A NonnormalMode Marginal State of Convection in a Porous Rectangle
(Journal article; Peer reviewed, 2019)The fourthorder Darcy–Bénard eigenvalue problem for onset of thermal convection in a 2D rectangular porous box is investigated. The conventional type of solution has normalmode dependency in at least one of the two spatial ... 
Nonstandard Problems in an Ordinary Differential Equations Course
(Journal article; Peer reviewed, 2018)