#### Filter Results:

- Full text PDF available (18)

#### Publication Year

1996

2017

- This year (2)
- Last 5 years (11)
- Last 10 years (17)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

- Clemens Pechstein, Michael Kuhn, +5 authors Clemens Hofreither
- 1997

In this article, we provide a rigorous a priori error estimate for the symmetric coupling of the finite and boundary element method for the potential problem in three dimensions. Our theoreticalâ€¦ (More)

- Clemens Hofreither
- J. Num. Math.
- 2011

Recently, C. Hofreither, U. Langer and C. Pechstein have analyzed a nonstandard finite element method based on element-local boundary integral operators. The method is able to treat generalâ€¦ (More)

The fast solution of linear systems arising from an isogeometric discretization of a partial differential equation is of great importance for the practical use of Isogeometric Analysis. For classicalâ€¦ (More)

- Ivanka Georgieva, Clemens Hofreither, +14 authors Walter Zulehner
- 2011

Given information about a harmonic function in two variables, consisting of a nite number of values of its Radon projections, i.e., integrals along some chords of the unit circle, we study theâ€¦ (More)

- Clemens Hofreither, Ulrich Langer, Clemens Pechstein
- LSSC
- 2011

- Clemens Hofreither, Ulrich Langer, +12 authors Clemens Pechstein
- 1996

We present and analyze a non-standard finite element method based on elementlocal boundary integral operators that permits polyhedral element shapes as well as meshes with hanging nodes. The methodâ€¦ (More)

- Clemens Hofreither, Walter Zulehner
- Curves and Surfaces
- 2014

We investigate geometric multigrid methods for solving the large, sparse linear systems which arise in isogeometric discretizations of elliptic partial differential equations. In particular, we studyâ€¦ (More)

- Clemens Hofreither, Walter Zulehner
- NMA
- 2014

We investigate geometric multigrid methods for solving the large, sparse linear systems which arise in isogeometric discretizations of elliptic partial differential equations. We observe that theâ€¦ (More)

- Clemens Hofreither, Bert JÃ¼ttler, +5 authors Walter Zulehnera
- 2015

We propose a geometric multigrid algorithm for the solution of the linear systems which arise when using hierarchical spline spaces for isogeometric discretizations of elliptic partial differentialâ€¦ (More)

The dynamics of beams that undergo large displacements is analyzed in frequency domain and comparisons between models derived by isogeometric analysis and p-FEM are presented. The equation of motionâ€¦ (More)