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[91]
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Sören Bartels, Robert Tovey, and Friedrich Wassmer.
Singular solutions, graded meshes,and adaptivity for total-variation
regularized minimization problems.
ESAIM Math. Model. Numer. Anal., 56(6):1871--1888, 2022.
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DOI |
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[90]
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Sören Bartels and Christian Palus.
Stable gradient flow discretizations for simulating bilayer plate
bending with isometry and obstacle constraints.
IMA J. Numer. Anal., 42(3):1903--1928, 2022.
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DOI |
http |
.pdf ]
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[89]
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Sören Bartels, Hedwig Keller, and Gerd Wachsmuth.
Numerical approximation of optimal convex and rotationally symmetric
shapes for an eigenvalue problem arising in optimal insulation.
Comput. Math. Appl., 119:327--339, 2022.
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DOI |
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[88]
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Sören Bartels, Frank Meyer, and Christian Palus.
Simulating self-avoiding isometric plate bending.
SIAM J. Sci. Comput., 44(3):A1475--A1496, 2022.
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DOI |
http |
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[87]
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Sören Bartels, Marijo Milicevic, Marita Thomas, Sven Tornquist, and Nico
Weber.
Approximation schemes for materials with discontinuities.
In Non-standard discretisation methods in solid mechanics,
volume 98 of Lect. Notes Appl. Comput. Mech., pages 505--565. Springer,
Cham, [2022] (c)2022.
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DOI |
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[86]
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Sören Bartels and Stephan Hertzog.
Error bounds for discretized optimal transport and its reliable
efficient numerical solution.
In Non-smooth and complementarity-based distributed parameter
systems---simulation and hierarchical optimization, volume 172 of
Internat. Ser. Numer. Math., pages 1--20. Birkhäuser/Springer, Cham,
2022.
[ bib |
.pdf ]
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[85]
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Sören Bartels.
Error estimates for a class of discontinuous Galerkin methods for
nonsmooth problems via convex duality relations.
Math. Comp., 90(332):2579--2602, 2021.
[ bib |
DOI |
http |
.pdf ]
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[84]
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Sören Bartels.
Simulation of constrained elastic curves and application to a conical
sheet indentation problem.
IMA J. Numer. Anal., 41(3):2255--2279, 2021.
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DOI |
http |
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[83]
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Sören Bartels and Philipp Reiter.
Stability of a simple scheme for the approximation of elastic knots
and self-avoiding inextensible curves.
Math. Comp., 90(330):1499--1526, 2021.
[ bib |
DOI |
http |
.pdf ]
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[82]
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Sören Bartels and Zhangxian Wang.
Orthogonality relations of Crouzeix-Raviart and
Raviart-Thomas finite element spaces.
Numer. Math., 148(1):127--139, 2021.
[ bib |
DOI |
http |
.pdf ]
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[81]
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Sören Bartels.
Nonconforming discretizations of convex minimization problems and
precise relations to mixed methods.
Comput. Math. Appl., 93:214--229, 2021.
[ bib |
DOI |
http |
.pdf ]
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[80]
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Sören Bartels and Jakob Keck.
Adaptive time stepping in elastoplasticity.
Discrete Contin. Dyn. Syst. Ser. S, 14(1):71--88, 2021.
[ bib |
DOI |
http |
.pdf ]
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[79]
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Sören Bartels.
Finite element simulation of nonlinear bending models for thin
elastic rods and plates.
In Geometric partial differential equations. Part I,
volume 21 of Handb. Numer. Anal., pages 221--273.
Elsevier/North-Holland, Amsterdam, [2020] (c)2020.
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.pdf ]
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[78]
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Sören Bartels and Philipp Reiter.
Numerical solution of a bending-torsion model for elastic rods.
Numer. Math., 146(4):661--697, 2020.
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DOI |
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[77]
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Sören Bartels.
Numerical simulation of inextensible elastic ribbons.
SIAM J. Numer. Anal., 58(6):3332--3354, 2020.
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DOI |
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[76]
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Sören Bartels and Marijo Milicevic.
Primal-dual gap estimators for a posteriori error analysis of
nonsmooth minimization problems.
ESAIM Math. Model. Numer. Anal., 54(5):1635--1660, 2020.
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DOI |
http |
.pdf ]
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[75]
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Sören Bartels and Marijo Milicevic.
Efficient iterative solution of finite element discretized nonsmooth
minimization problems.
Comput. Math. Appl., 80(5):588--603, 2020.
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DOI |
http |
.pdf ]
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[74]
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Sören Bartels and Gerd Wachsmuth.
Numerical approximation of optimal convex shapes.
SIAM J. Sci. Comput., 42(2):A1226--A1244, 2020.
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DOI |
http |
.pdf ]
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[73]
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Sören Bartels and Michael Ružička.
Convergence of fully discrete implicit and semi-implicit
approximations of singular parabolic equations.
SIAM J. Numer. Anal., 58(1):811--833, 2020.
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DOI |
http |
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[72]
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Sören Bartels and Giuseppe Buttazzo.
Numerical solution of a nonlinear eigenvalue problem arising in
optimal insulation.
Interfaces Free Bound., 21(1):1--19, 2019.
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DOI |
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[71]
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Sören Bartels, Lars Diening, and Ricardo H. Nochetto.
Unconditional stability of semi-implicit discretizations of singular
flows.
SIAM J. Numer. Anal., 56(3):1896--1914, 2018.
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DOI |
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[70]
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Sören Bartels, Philipp Reiter, and Johannes Riege.
A simple scheme for the approximation of self-avoiding inextensible
curves.
IMA J. Numer. Anal., 38(2):543--565, 2018.
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DOI |
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[69]
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Sören Bartels, Marijo Milicevic, and Marita Thomas.
Numerical approach to a model for quasistatic damage with spatial
BV-regularization.
In Trends in applications of mathematics to mechanics,
volume 27 of Springer INdAM Ser., pages 179--203. Springer, Cham, 2018.
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[68]
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Sören Bartels, Andrea Bonito, Anastasia H. Muliana, and Ricardo H.
Nochetto.
Modeling and simulation of thermally actuated bilayer plates.
J. Comput. Phys., 354:512--528, 2018.
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DOI |
http |
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[67]
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Sören Bartels and Patrick Schön.
Adaptive approximation of the Monge-Kantorovich problem via
primal-dual gap estimates.
ESAIM Math. Model. Numer. Anal., 51(6):2237--2261, 2017.
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DOI |
http |
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[66]
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Harbir Antil and Sören Bartels.
Spectral approximation of fractional PDEs in image processing and
phase field modeling.
Comput. Methods Appl. Math., 17(4):661--678, 2017.
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DOI |
http |
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[65]
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Sören Bartels and Marijo Milicevic.
Iterative finite element solution of a constrained total variation
regularized model problem.
Discrete Contin. Dyn. Syst. Ser. S, 10(6):1207--1232, 2017.
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DOI |
http |
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[64]
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Sören Bartels.
Numerical solution of a Föppl--von Kármán model.
SIAM J. Numer. Anal., 55(3):1505--1524, 2017.
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DOI |
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[63]
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Sören Bartels, Andrea Bonito, and Ricardo H. Nochetto.
Bilayer plates: model reduction, Γ-convergent finite element
approximation, and discrete gradient flow.
Comm. Pure Appl. Math., 70(3):547--589, 2017.
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DOI |
http |
.pdf ]
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[62]
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Sören Bartels.
A simple scheme for the approximation of elastic vibrations of
inextensible curves.
IMA J. Numer. Anal., 36(3):1051--1071, 2016.
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DOI |
http |
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[61]
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Sören Bartels and Marijo Milicevic.
Stability and experimental comparison of prototypical iterative
schemes for total variation regularized problems.
Comput. Methods Appl. Math., 16(3):361--388, 2016.
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DOI |
http |
.pdf ]
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[60]
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Sören Bartels.
Broken Sobolev space iteration for total variation regularized
minimization problems.
IMA J. Numer. Anal., 36(2):493--502, 2016.
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DOI |
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[59]
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Sören Bartels.
Projection-free approximation of geometrically constrained partial
differential equations.
Math. Comp., 85(299):1033--1049, 2016.
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DOI |
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[58]
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Sören Bartels, Ricardo H. Nochetto, and Abner J. Salgado.
A total variation diminishing interpolation operator and
applications.
Math. Comp., 84(296):2569--2587, 2015.
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DOI |
http |
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[57]
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Sören Bartels.
Fast and accurate finite element approximation of wave maps into
spheres.
ESAIM Math. Model. Numer. Anal., 49(2):551--558, 2015.
[ bib |
DOI |
http |
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[56]
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Sören Bartels.
Robustness of error estimates for phase field models at a class of
topological changes.
Comput. Methods Appl. Mech. Engrg., 288:75--82, 2015.
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DOI |
http |
.pdf ]
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[55]
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Sören Bartels and Peter Hornung.
Bending paper and the Möbius strip.
J. Elasticity, 119(1-2):113--136, 2015.
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DOI |
http |
.txt ]
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[54]
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Sören Bartels.
Error control and adaptivity for a variational model problem defined
on functions of bounded variation.
Math. Comp., 84(293):1217--1240, 2015.
[ bib |
DOI |
http |
.pdf ]
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[53]
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Sören Bartels, Mario Bebendorf, and Michael Bratsch.
A fast and accurate numerical method for the computation of unstable
micromagnetic configurations.
In Singular phenomena and scaling in mathematical models, pages
413--434. Springer, Cham, 2014.
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DOI |
http |
.pdf ]
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[52]
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Sören Bartels and Alexander Raisch.
Simulation of Q-tensor fields with constant orientational order
parameter in the theory of uniaxial nematic liquid crystals.
In Singular phenomena and scaling in mathematical models, pages
383--412. Springer, Cham, 2014.
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DOI |
http |
.pdf ]
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[51]
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Sören Bartels.
Quasi-optimal error estimates for implicit discretizations of
rate-independent evolutions.
SIAM J. Numer. Anal., 52(2):708--716, 2014.
[ bib |
DOI |
http |
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[50]
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Sören Bartels, Ricardo H. Nochetto, and Abner J. Salgado.
Discrete total variation flows without regularization.
SIAM J. Numer. Anal., 52(1):363--385, 2014.
[ bib |
DOI |
http |
.pdf ]
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[49]
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Sören Bartels.
A simple scheme for the approximation of the elastic flow of
inextensible curves.
IMA J. Numer. Anal., 33(4):1115--1125, 2013.
[ bib |
DOI |
http |
.pdf ]
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[48]
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Sören Bartels and Tomáš Roubíček.
Numerical approaches to thermally coupled perfect plasticity.
Numer. Methods Partial Differential Equations,
29(6):1837--1863, 2013.
[ bib |
.pdf ]
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[47]
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Sören Bartels.
Finite element approximation of large bending isometries.
Numer. Math., 124(3):415--440, 2013.
[ bib |
DOI |
http |
.pdf ]
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[46]
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Sören Bartels.
Approximation of large bending isometries with discrete Kirchhoff
triangles.
SIAM J. Numer. Anal., 51(1):516--525, 2013.
[ bib |
DOI |
http |
.pdf ]
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[45]
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Sören Bartels.
Total variation minimization with finite elements: convergence and
iterative solution.
SIAM J. Numer. Anal., 50(3):1162--1180, 2012.
[ bib |
DOI |
http |
.pdf ]
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[44]
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Sören Bartels and Patrick Schreier.
Local coarsening of simplicial finite element meshes generated by
bisections.
BIT, 52(3):559--569, 2012.
[ bib |
DOI |
http |
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[43]
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Sören Bartels, Georg Dolzmann, Ricardo H. Nochetto, and Alexander Raisch.
Finite element methods for director fields on flexible surfaces.
Interfaces Free Bound., 14(2):231--272, 2012.
[ bib |
DOI |
http |
.pdf ]
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[42]
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Sören Bartels, Alexander Mielke, and Tomáš Roubíček.
Quasi-static small-strain plasticity in the limit of vanishing
hardening and its numerical approximation.
SIAM J. Numer. Anal., 50(2):951--976, 2012.
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DOI |
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.pdf ]
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[41]
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Sören Bartels and Martin Kružík.
An efficient approach to the numerical solution of rate-independent
problems with nonconvex energies.
Multiscale Model. Simul., 9(3):1276--1300, 2011.
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DOI |
http |
.pdf ]
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[40]
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Sören Bartels and Rüdiger Müller.
Error control for the approximation of Allen-Cahn and
Cahn-Hilliard equations with a logarithmic potential.
Numer. Math., 119(3):409--435, 2011.
[ bib |
DOI |
http |
.pdf ]
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[39]
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Sören Bartels and Tomáš Roubíček.
Thermo-visco-elasticity with rate-independent plasticity in isotropic
materials undergoing thermal expansion.
ESAIM Math. Model. Numer. Anal., 45(3):477--504, 2011.
[ bib |
DOI |
http |
.pdf ]
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[38]
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Sören Bartels and Rüdiger Müller.
Quasi-optimal and robust a posteriori error estimates in
L(L2) for the approximation of Allen-Cahn equations past
singularities.
Math. Comp., 80(274):761--780, 2011.
[ bib |
DOI |
http |
.pdf ]
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[37]
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Sören Bartels, Rüdiger Müller, and Christoph Ortner.
Robust a priori and a posteriori error analysis for the approximation
of Allen-Cahn and Ginzburg-Landau equations past topological changes.
SIAM J. Numer. Anal., 49(1):110--134, 2011.
[ bib |
DOI |
http |
.pdf ]
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[36]
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Sören Bartels.
Numerical analysis of a finite element scheme for the approximation
of harmonic maps into surfaces.
Math. Comp., 79(271):1263--1301, 2010.
[ bib |
DOI |
http |
.pdf ]
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[35]
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Sören Bartels, Georg Dolzmann, and Ricardo H. Nochetto.
A finite element scheme for the evolution of orientation order in
fluid membranes.
M2AN Math. Model. Numer. Anal., 44(1):1--31, 2010.
[ bib |
DOI |
http |
.pdf ]
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[34]
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Sören Bartels and Rüdiger Müller.
A posteriori error controlled local resolution of evolving interfaces
for generalized Cahn-Hilliard equations.
Interfaces Free Bound., 12(1):45--73, 2010.
[ bib |
DOI |
http |
.pdf ]
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[33]
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Sören Bartels, Max Jensen, and Rüdiger Müller.
Discontinuous Galerkin finite element convergence for
incompressible miscible displacement problems of low regularity.
SIAM J. Numer. Anal., 47(5):3720--3743, 2009.
[ bib |
DOI |
http |
.pdf ]
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[32]
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Sören Bartels.
Semi-implicit approximation of wave maps into smooth or convex
surfaces.
SIAM J. Numer. Anal., 47(5):3486--3506, 2009.
[ bib |
DOI |
http |
.pdf ]
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[31]
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Sören Bartels, Christian Lubich, and Andreas Prohl.
Convergent discretization of heat and wave map flows to spheres using
approximate discrete Lagrange multipliers.
Math. Comp., 78(267):1269--1292, 2009.
[ bib |
DOI |
http |
.pdf ]
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[30]
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Sören Bartels.
Combination of global and local approximation schemes for harmonic
maps into spheres.
J. Comput. Math., 27(2-3):170--183, 2009.
[ bib |
www: ]
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[29]
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Sören Bartels and Tomáš Roubíček.
Thermoviscoplasticity at small strains.
ZAMM Z. Angew. Math. Mech., 88(9):735--754, 2008.
[ bib |
DOI |
http |
.pdf ]
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[28]
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Sören Bartels and Andreas Prohl.
Convergence of an implicit, constraint preserving finite element
discretization of p-harmonic heat flow into spheres.
Numer. Math., 109(4):489--507, 2008.
[ bib |
DOI |
http |
.pdf ]
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[27]
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L'ubomír Baňas, Sören Bartels, and Andreas Prohl.
A convergent implicit finite element discretization of the
Maxwell-Landau-Lifshitz-Gilbert equation.
SIAM J. Numer. Anal., 46(3):1399--1422, 2008.
[ bib |
DOI |
http |
.pdf ]
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[26]
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Sören Bartels, Joy Ko, and Andreas Prohl.
Numerical analysis of an explicit approximation scheme for the
Landau-Lifshitz-Gilbert equation.
Math. Comp., 77(262):773--788, 2008.
[ bib |
DOI |
http |
.pdf ]
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[25]
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Sören Bartels and Carsten Carstensen.
A convergent adaptive finite element method for an optimal design
problem.
Numer. Math., 108(3):359--385, 2008.
[ bib |
DOI |
http |
.pdf ]
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[24]
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Sören Bartels, Xiaobing Feng, and Andreas Prohl.
Finite element approximations of wave maps into spheres.
SIAM J. Numer. Anal., 46(1):61--87, 2007/08.
[ bib |
DOI |
http |
.pdf ]
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[23]
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Sören Bartels and Andreas Prohl.
Stable discretization of scalar and constrained vectorial
Perona-Malik equation.
Interfaces Free Bound., 9(4):431--453, 2007.
[ bib |
DOI |
http |
.pdf ]
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[22]
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Sören Bartels and Andreas Prohl.
Constraint preserving implicit finite element discretization of
harmonic map flow into spheres.
Math. Comp., 76(260):1847--1859, 2007.
[ bib |
DOI |
http |
.pdf ]
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[21]
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John W. Barrett, Sören Bartels, Xiaobing Feng, and Andreas Prohl.
A convergent and constraint-preserving finite element method for the
p-harmonic flow into spheres.
SIAM J. Numer. Anal., 45(3):905--927, 2007.
[ bib |
DOI |
http |
.pdf ]
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[20]
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Sören Bartels, Carsten Carstensen, Sergio Conti, Klaus Hackl, Ulrich Hoppe,
and Antonio Orlando.
Relaxation and the computation of effective energies and
microstructures in solid mechanics.
In Analysis, modeling and simulation of multiscale problems,
pages 197--224. Springer, Berlin, 2006.
[ bib |
DOI |
http |
.pdf ]
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[19]
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Sören Bartels and Andreas Prohl.
Convergence of an implicit finite element method for the
Landau-Lifshitz-Gilbert equation.
SIAM J. Numer. Anal., 44(4):1405--1419, 2006.
[ bib |
DOI |
http |
.pdf ]
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[18]
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S. Bartels, C. Carstensen, and A. Hecht.
P2Q2Iso2D=2D isoparametric FEM in Matlab.
J. Comput. Appl. Math., 192(2):219--250, 2006.
[ bib |
DOI |
http |
.pdf ]
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[17]
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Sören Bartels.
Robust a priori error analysis for the approximation of degree-one
Ginzburg-Landau vortices.
M2AN Math. Model. Numer. Anal., 39(5):863--882, 2005.
[ bib |
DOI |
http |
.pdf ]
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[16]
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Sören Bartels.
Reliable and efficient approximation of polyconvex envelopes.
SIAM J. Numer. Anal., 43(1):363--385, 2005.
[ bib |
DOI |
http |
.pdf ]
|
[15]
|
Sören Bartels.
Stability and convergence of finite-element approximation schemes for
harmonic maps.
SIAM J. Numer. Anal., 43(1):220--238, 2005.
[ bib |
DOI |
http |
.pdf ]
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[14]
|
Sören Bartels.
A posteriori error analysis for time-dependent Ginzburg-Landau
type equations.
Numer. Math., 99(4):557--583, 2005.
[ bib |
DOI |
http |
.pdf ]
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[13]
|
Sören Bartels and Tomáš Roubíček.
Linear-programming approach to nonconvex variational problems.
Numer. Math., 99(2):251--287, 2004.
[ bib |
DOI |
http |
.pdf ]
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[12]
|
S. Bartels and C. Carstensen.
Averaging techniques yield reliable a posteriori finite element error
control for obstacle problems.
Numer. Math., 99(2):225--249, 2004.
[ bib |
DOI |
http |
.pdf ]
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[11]
|
Sören Bartels.
Linear convergence in the approximation of rank-one convex envelopes.
M2AN Math. Model. Numer. Anal., 38(5):811--820, 2004.
[ bib |
DOI |
http |
.pdf ]
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[10]
|
S. Bartels, C. Carstensen, K. Hackl, and U. Hoppe.
Effective relaxation for microstructure simulations: algorithms and
applications.
Comput. Methods Appl. Mech. Engrg., 193(48-51):5143--5175,
2004.
[ bib |
DOI |
http |
.pdf ]
|
[9]
|
S. Bartels, C. Carstensen, and G. Dolzmann.
Inhomogeneous Dirichlet conditions in a priori and a posteriori
finite element error analysis.
Numer. Math., 99(1):1--24, 2004.
[ bib |
DOI |
http |
.pdf ]
|
[8]
|
Sören Bartels.
Adaptive approximation of Young measure solutions in scalar
nonconvex variational problems.
SIAM J. Numer. Anal., 42(2):505--530, 2004.
[ bib |
DOI |
http |
.pdf ]
|
[7]
|
S. Bartels, C. Carstensen, P. Plecháč, and A. Prohl.
Convergence for stabilisation of degenerately convex minimisation
problems.
Interfaces Free Bound., 6(2):253--269, 2004.
[ bib |
DOI |
http |
.pdf ]
|
[6]
|
Sören Bartels and Andreas Prohl.
Multiscale resolution in the computation of crystalline
microstructure.
Numer. Math., 96(4):641--660, 2004.
[ bib |
DOI |
http |
.pdf ]
|
[5]
|
Carsten Carstensen, Sören Bartels, and Stefan Jansche.
A posteriori error estimates for nonconforming finite element
methods.
Numer. Math., 92(2):233--256, 2002.
[ bib |
DOI |
http |
.pdf ]
|
[4]
|
Sören Bartels and Carsten Carstensen.
Each averaging technique yields reliable a posteriori error control
in FEM on unstructured grids. II. Higher order FEM.
Math. Comp., 71(239):971--994, 2002.
[ bib |
DOI |
http |
.pdf ]
|
[3]
|
Carsten Carstensen and Sören Bartels.
Each averaging technique yields reliable a posteriori error control
in FEM on unstructured grids. I. Low order conforming, nonconforming,
and mixed FEM.
Math. Comp., 71(239):945--969, 2002.
[ bib |
DOI |
http |
.pdf ]
|
[2]
|
Carsten Carstensen, Sören Bartels, and Roland Klose.
An experimental survey of a posteriori Courant finite element error
control for the Poisson equation.
Adv. Comput. Math., 15(1-4):79--106 (2002), 2001.
A posteriori error estimation and adaptive computational methods.
[ bib |
DOI |
http |
.pdf ]
|
[1]
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Sören Bartels, Carsten Carstensen, and Petr Plecháč.
Finite element computation of macroscopic quantities in nonconvex
minimisation problems and applications in materials science.
In Multifield problems, pages 69--79. Springer, Berlin, 2000.
[ bib |
.pdf ]
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