Discrete exterior calculus and higher order Whitney forms
Partial differential equations describing various phenomena have a natural expression in terms of differential forms. This thesis discusses higher order Whitney forms as approximations for differential forms. We present how they can be used with discrete exterior calculus to discretise and solve partial differential equations formulated with differential forms.
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Systematic implementation of higher order Whitney forms in methods based on discrete exterior calculus
Lohi, Jonni (Springer, 2022)We present a systematic way to implement higher order Whitney forms in numerical methods based on discrete exterior calculus. Given a simplicial mesh, we first refine the mesh into smaller simplices which can be used to ... -
Comparison of finite element and discrete exterior calculus in computation of time-harmonic wave propagation with controllability
Saksa, Tytti (Elsevier, 2025)This paper discusses computation of time-harmonic wave problems using a mixed formulation and the controllability method introduced by Roland Glowinski. As an example, a scattering problem (in an exterior domain) is ... -
(2+1)-dimensional discrete exterior discretization of a general wave model in Minkowski spacetime
Mönkölä, Sanna; Räbinä, Jukka; Saksa, Tytti; Rossi, Tuomo (Elsevier, 2025)We present a differential geometry-based model for linear wave equations in -dimensional spacetime. This model encompasses acoustic, elastic, and electromagnetic waves and is also applicable in quantum mechanical simulations. ... -
On a numerical solution of the Maxwell equations by discrete exterior calculus
Räbinä, Jukka (University of Jyväskylä, 2014) -
Time-harmonic electromagnetics with exact controllability and discrete exterior calculus
Mönkölä, Sanna; Räbinä, Jukka; Rossi, Tuomo (Academie des Sciences, 2023)In this paper, we apply the exact controllability concept for time-harmonic electromagnetic scattering. The problem is presented in terms of the differential forms, and the discrete exterior calculus is utilized for spatial ...
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