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Bert Jüttler
Researcher at Johannes Kepler University of Linz
Publications - 267
Citations - 6882
Bert Jüttler is an academic researcher from Johannes Kepler University of Linz. The author has contributed to research in topics: Spline (mathematics) & Isogeometric analysis. The author has an hindex of 39, co-authored 262 publications receiving 6139 citations. Previous affiliations of Bert Jüttler include Technische Universität Darmstadt & Research Institute for Symbolic Computation.
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THB-splines: The truncated basis for hierarchical splines
TL;DR: It is shown that the construction of classical hierarchical B-splines can be suitably modified in order to define locally supported basis functions that form a partition of unity by reducing the support of basis functions defined on coarse grids, according to finer levels in the hierarchy of splines.
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A hierarchical approach to adaptive local refinement in isogeometric analysis
TL;DR: The theoretical properties of the spline space are investigated to ensure fundamental properties like linear independence and partition of unity and concepts well-established in finite element analysis are used to fully integrate hierarchical spline spaces into the isogeometric setting.
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Adaptive isogeometric analysis by local h-refinement with T-splines
TL;DR: Obeying a few straightforward rules, rectangular patches in the parameter space of the T-splines can be subdivided and thus a local refinement becomes feasible while still preserving the exact geometry.
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Computation of rotation minimizing frames
TL;DR: This work presents a novel simple and efficient method for accurate and stable computation of RMF of a curve in 3D, which uses two reflections to compute each frame from its preceding one to yield a sequence of frames to approximate an exact RMF.
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An algebraic approach to curves and surfaces on the sphere and on other quadrics
TL;DR: An explicit representation for any irreducible rational Beziers curve and Bezier surface patch on the unit sphere is given and the extension to general quadrics (ellipsoids, hyperboloids, paraboloids) is outlined.