Ulrich Reif - researchr alias

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Viewing Publication 1 - 43 from 43

2024

Sobolev regularity of bivariate isogeometric finite element spaces in case of a geometry map with degenerate cornerUlrich Reif. adcm, 50(6):108, December 2024. [doi]

2023

On the condition of cubic B-splinesTom Lyche, Knut Mørken, Ulrich Reif. jat, 289:105883, May 2023. [doi]

2022

Stabilization of spline bases by extensionBa-Duong Chu, Florian Martin, Ulrich Reif. adcm, 48(3):23, 2022. [doi]

Surface patches with rounded cornersBenjamin Marussig, Ulrich Reif. cagd, 97:102134, 2022. [doi]

2021

Clothoid fitting and geometric Hermite subdivisionUlrich Reif, Andreas Weinmann. adcm, 47(4):50, 2021. [doi]

2019

Interactive Design and Simulation (Dagstuhl Seminar 19512)Thomas A. Grandine, Jörg Peters, Ulrich Reif. dagstuhl-reports, 9(12):115-134, 2019. [doi]

Old problems and new challenges in subdivisionUlrich Reif, Malcolm A. Sabin. jcam, 349:523-531, 2019. [doi]

2016

Collocation with WEB-SplinesChristian Apprich, Klaus Höllig, Jörg Hörner, Ulrich Reif. adcm, 42(4):823-842, 2016. [doi]

On the volume of sets bounded by refinable functionsJan Hakenberg, Ulrich Reif. amc, 272:2-19, 2016. [doi]

2014

Two-stage approximation methods with extended B-splinesOleg Davydov, Jennifer Prasiswa, Ulrich Reif. moc, 83(286):809-833, 2014. [doi]

Approximation with diversified B-splinesUlrich Reif, Nada Sissouno. cagd, 31(7-8):510-520, 2014. [doi]

2013

Generalized Lane-Riesenfeld algorithmsThomas J. Cashman, Kai Hormann, Ulrich Reif. cagd, 30(4):398-409, 2013. [doi]

2012

Notes on the curvature tensorNicole Lehmann, Ulrich Reif. cvgip, 74(6):321-325, 2012. [doi]

Polynomial approximation on domains bounded by diffeomorphic images of graphsUlrich Reif. jat, 164(7):954-970, 2012. [doi]

2010

Piecewise Linear Orthogonal ApproximationAndreas App, Ulrich Reif. siamnum, 48(3):840-856, 2010. [doi]

2009

Error bounds for polynomial tensor product interpolationBernhard MÃ¶ÃŸner, Ulrich Reif. computing, 86(2-3):185-197, 2009. [doi]

2008

Stability of tensor product B-splines on domainsBernhard Mößner, Ulrich Reif. jat, 154(1):1-19, 2008. [doi]

Subdivision SurfacesJörg Peters, Ulrich Reif. Volume 3 of Geometry and Computing, Springer, 2008. [doi]

2007

Extrapolation methods for approximating arc length and surface areaMichael S. Floater, Atgeirr F. Rasmussen, Ulrich Reif. na, 44(3):235-248, 2007. [doi]

An Appropriate Geometric Invariant for the ::::C:::: :::2:::-Analysis of Subdivision SurfacesUlrich Reif. ima-ms 2007: 364-377 [doi]

2005

Guest Editors NoteUlrich Reif, Karsten Große-Brauckmann. cagd, 22(7):571-572, 2005. [doi]

2004

Shape characterization of subdivision surfaces--case studiesKestutis Karciauskas, JÃ¶rg Peters, Ulrich Reif. cagd, 21:601-614, 2004. [doi]

Shape characterization of subdivision surfaces--basic principlesJÃ¶rg Peters, Ulrich Reif. cagd, 21:585-599, 2004. [doi]

2003

Nonuniform web-splinesKlaus Höllig, Ulrich Reif. cagd, 20(5):277-294, 2003. [doi]

In memoriam Josef HoschekUlrich Reif. cagd, 20(8-9):493-499, 2003. [doi]

2002

Multigrid methods with web-splinesKlaus Höllig, Ulrich Reif, Joachim Wipper. nm, 91(2):237-255, 2002. [doi]

2001

Weighted Extended B-Spline Approximation of Dirichlet ProblemsKlaus Höllig, Ulrich Reif, Joachim Wipper. siamnum, 39(2):442-462, 2001. [doi]

Curvature integrability of subdivision surfacesUlrich Reif, Peter Schröder. adcm, 14(2):157-174, 2001. [doi]

2000

Best bounds on the approximation of polynomials and splines by their control structureUlrich Reif. cagd, 17(6):579-589, 2000. [doi]

1999

Polynomial degree reduction in the L2-norm equals best Euclidean approximation of Bézier coefficientsDavid Lutterkort, Jörg Peters, Ulrich Reif. cagd, 16(7):607-612, 1999. [doi]

Degree estimates for ::::C:::::::k:::-piecewise polynomial subdivision surfacesHartmut Prautzsch, Ulrich Reif. adcm, 10(2):209-217, 1999. [doi]

On the local existence of the quadratic geometric Hermite interpolantUlrich Reif. cagd, 16(3):217-221, 1999. [doi]

Analyse und Konstruktion von Subdivisionsalgorithmen für Freiformflächen beliebiger TopologieUlrich Reif. Berichte aus der Mathematik, Shaker, 1999.

1998

The 42 equivalence classes of quadratic surfaces in affine n-spaceJörg Peters, Ulrich Reif. cagd, 15(5):459-473, 1998. [doi]

1997

Degenerate Bézier patches with continuous curvatureH. Bohl, Ulrich Reif. cagd, 14(8):749-761, 1997. [doi]

The Simplest Subdivision Scheme for Smoothing PolyhedraJörg Peters, Ulrich Reif. tog, 16(4):420-431, 1997. [doi]

Uniform B-spline approximation in Sobolev spacesUlrich Reif. na, 15(1):1-14, 1997. [doi]

Orthogonality Relations for Cardinal B-Splines over Bounded IntervalsUlrich Reif. In Wolfgang Straßer, Reinhard Klein, René T. Rau, editors, Geometric Modeling: Theory and Practice. Focus on computer graphics, pages 59-69, Springer, 1997. [doi]

1995

A counterexample to a corollary of Kim et al.Günter Aumann, Ulrich Reif, Klaus Spitzmüller. cagd, 12(8):853-855, 1995. [doi]

A note on degenerate triangular Bézier patchesUlrich Reif. cagd, 12(5):547-550, 1995. [doi]

A unified approach to subdivision algorithms near extraordinary verticesUlrich Reif. cagd, 12(2):153-174, 1995. [doi]

Biquadratic G-spline surfacesUlrich Reif. cagd, 12(2):193-205, 1995. [doi]

1993

Neue Aspekte in der Theorie der Freiformflächen beliebiger TopologieUlrich Reif. PhD thesis, University of Stuttgart, Germany, 1993. [doi]

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