100 citations · 334 across the 42 of their papers we have counts for
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Dual-Primal Isogeometric Tearing and Interconnecting Solvers for large-scale systems of multipatch continuous Galerkin IgA equations
Christoph Hofer, Ulrich Langer
The dual-primal isogeometric tearing and interconnecting (IETI-DP) method is the adaption of the dual-primal finite element tearing and interconnecting (FETI-DP) method to isogeome…
Discontinuous Galerkin Isogeometric Analysis of Elliptic Diffusion Problems on Segmentations with Gaps
Christoph Hofer, Ulrich Langer, Ioannis Toulopoulos
We propose a new discontinuous Galerkin Isogeometric Analysis (IgA) technique for the numerical solution of elliptic diffusion problems in computational domains decomposed into vol…
Functional a posteriori error estimates for time-periodic parabolic optimal control problems
Ulrich Langer, Sergey Repin, Monika Wolfmayr
This paper is devoted to the a posteriori error analysis of multiharmonic finite element approximations to distributed optimal control problems with time-periodic state equations o…
Mesh Grading in Isogeometric Analysis
Ulrich Langer, Angelos Mantzaflaris, Stephen E. Moore +1
This paper is concerned with the construction of graded meshes for approximating so-called singular solutions of elliptic boundary value problems by means of multipatch discontinuo…
Space-Time Isogeometric Analysis of Parabolic Evolution Equations
Ulrich Langer, Stephen E. Moore, Martin Neumüller
We present and analyze a new stable space-time Isogeometric Analysis (IgA) method for the numerical solution of parabolic evolution equations in fixed and moving spatial computatio…
Numerical simulation of parabolic moving and growing interface problems using small mesh deformation
Ulrich Langer, Huidong Yang
In this work, we develop a cutting method for solving problems with moving and growing interfaces in 3D. This new method is able to resolve large displacement or deformation of imm…