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J. Ahlkrona

9 papers hereh-index 9187 citations38 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author1
  • middle author2
  • last author6

Across the 9 of 9 papers where every author was matched, so the position is known.

fields
  • math.NA5
  • physics.comp-ph3
  • physics.flu-dyn1

identity via Semantic Scholar / OpenAlex

activity
20152025
most citedDynamically coupling the non-linear Stokes equations with the Shallow Ice Approximation in glaciology: Description and first applications of the ISCAL method

28 citations · 49 across the 8 of their papers we have counts for

collaborators
Showing 2024Show all

3 papers · 1 filter

math.NA2024

A potential energy conserving finite element method for turbulent variable density flow: application to glacier-fjord circulation

Lukas Lundgren, Christian Helanow, Jonathan Wiskandt +2

We introduce a continuous Galerkin finite element discretization of the non-hydrostatic Boussinesq approximation of the Navier-Stokes equations, suitable for various applications s…

math.NA2024

Well-posedness of the Stokes problem under modified pressure Dirichlet boundary conditions

Igor Tominec, Josefin Ahlkrona, Malte Braack

This paper shows that the Stokes problem is well-posed when velocity and pressure simultaneously vanish on the domain boundary. This result is achieved by extending Nečas' inequali…

math.NA2024

Weak form Shallow Ice Approximation models with an improved time step restriction

Igor Tominec, Josefin Ahlkrona

The Shallow Ice Approximation (SIA) model on strong form is commonly used for inferring the flow dynamics of grounded ice sheets. The solution to the SIA model is a closed-form exp…

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