Mathematical foundations of adaptive isogeometric analysis

A Buffa, G Gantner, C Giannelli, D Praetorius… - … Methods in Engineering, 2022 - Springer
This paper reviews the state of the art and discusses recent developments in the field of
adaptive isogeometric analysis, with special focus on the mathematical theory. This includes …

A Review of T-spline Surfaces

H Ren, H Shou, H Lin - Recent Patents on Engineering, 2022 - ingentaconnect.com
Background: Curved modeling technology originated from the geometric lofting and design
of aircrafts, automobiles and ships. The control points of the traditional B-spline mesh should …

[HTML][HTML] Adaptive BEM for elliptic PDE systems, part II: Isogeometric analysis with hierarchical B-splines for weakly-singular integral equations

G Gantner, D Praetorius - Computers & Mathematics with Applications, 2022 - Elsevier
We formulate and analyze an adaptive algorithm for isogeometric analysis with hierarchical
B-splines for weakly-singular boundary integral equations. We prove that the employed …

Stable Implementation of Adaptive IGABEM in 2D in MATLAB

G Gantner, D Praetorius, S Schimanko - Computational Methods in …, 2022 - degruyter.com
We report on the Matlab program package IGABEM2D which provides an easily accessible
implementation of adaptive Galerkin boundary element methods in the frame of …

Adaptive BEM for elliptic PDE systems, part I: abstract framework, for weakly-singular integral equations

G Gantner, D Praetorius - Applicable Analysis, 2022 - Taylor & Francis
In the present work, we consider weakly-singular integral equations arising from linear
second-order elliptic PDE systems with constant coefficients, including, eg linear elasticity …

Inexpensive polynomial-degree-robust equilibrated flux a posteriori estimates for isogeometric analysis

G Gantner, M Vohralík - arXiv preprint arXiv:2210.08854, 2022 - arxiv.org
We consider isogeometric discretizations of the Poisson model problem, focusing on high
polynomial degrees and strong hierarchical refinements. We derive a posteriori error …

Adaptive isogeometric phase-field modeling of weak and strong discontinuities

P Hennig, M Kästner, R Maier, P Morgenstern… - … Methods in Solid …, 2022 - Springer
The development of innovative products demands multi-material lightweight designs with
complex heterogeneous local material structures. Their computer-aided engineering relies …

Inexpensive polynomial-degree-and number-of-hanging-nodes-robust equilibrated flux a posteriori estimates for isogeometric analysis

G Gantner, M Vohralík - 2022 - hal.univ-smb.fr
We consider isogeometric discretizations of the Poisson model problem, focusing on high
polynomial degrees and strong hierarchical refinements. We derive a posteriori error …

MATHICSE Technical Report: Mathematical Foundations of Adaptive Isogeometric Analysis

A Buffa, G Gantner, C Giannelli, D Praetorius… - 2021 - infoscience.epfl.ch
This paper reviews the state of the art and discusses recent developments in the field of
adaptive isogeometric analysis, with special focus on the mathematical theory. This includes …