100 citations · 334 across the 42 of their papers we have counts for
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math.NA2021
Space-time hexahedral finite element methods for parabolic evolution problems
Ulrich Langer, Andreas Schafelner
We present locally stabilized, conforming space-time finite element methods for parabolic evolution equations on hexahedral decompositions of the space-time cylinder. Tensor-produc…
math.NA2021
Simultaneous space-time finite element methods for parabolic optimal control problems
Ulrich Langer, Andreas Schafelner
This work presents, analyzes and tests stabilized space-time finite element methods on fully unstructured simplicial space-time meshes for the numerical solution of space-time trac…
math.NA2021
Robust discretization and solvers for elliptic optimal control problems with energy regularization
Ulrich Langer, Olaf Steinbach, Huidong Yang
We consider the finite element discretization and the iterative solution of singularly perturbed elliptic reaction-diffusion equations in three-dimensional computational domains. T…