Let X be a Banach space and let A be a Banach operator ideal. We say that X has the lambda-bounded approximation property for A (lambda-BAP for A) if for every Banach space Y and every operator T is an element of A(X, Y), ...

The vertical throughflow with viscous dissipation in a horizontal porous layer is studied. The horizontal plane boundaries are assumed to be isothermal with unequal temperatures and bottom heating. A basic stationary ...

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 ...

I masteroppgaven min fokuserer jeg på misforståelser/miskommunikasjon i matematikkundervisningen. Jeg har fått tilgang til videoer fra tre klasser (1. klasse, videregående skole) som jobbet med et inquirybasert opplegg i ...

The main theme for this thesis is early algebra. The focus is on teaching approaches and how these operate during the activities used in a third grade mathematics classroom. Particular to this classroom is the absence of ...

The development project LBM – Learning Better Mathematics – took place in schools and kindergartens in Vest-Agder from 2007 to 2010. Two years after its end, I investigate the practice and the beliefs about learning and ...

The purpose of this article is to analyse how students use inscriptions as tools for thinking and learning in mathematical problem-solving activities. The empirical context is that of learning about geometric series in a ...

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 ...

The conditions for the onset of convection in a horizontal rectangular channel filled with a fluid saturated porous medium are studied. The vertical sidewalls are assumed to be impermeable and adiabatic. The horizontal ...