Finite element methods for quantum electrodynamics using a Helmholtz decomposition of the gauge field. - Christian Ketelsen; Tom Manteuffel; Steve F. McCormick; John W. Ruge (Numer. Linear Algebra Appl., 2010)

Least-Squares Finite Element Methods for Quantum Electrodynamics. - James J. Brannick; Christian Ketelsen; Thomas A. Manteuffel; Stephen F. McCormick (SIAM J. Sci. Comput., 2010)

Relaxation-corrected bootstrap algebraic multigrid (rBAMG). - Marian Brezina; Christian Ketelsen; Thomas A. Manteuffel; Stephen F. McCormick; Minho Park 006; John W. Ruge (Numer. Linear Algebra Appl., 2012)

Two-Level Adaptive Algebraic Multigrid for a Sequence of Problems with Slowly Varying Random Coefficients. - Delyan Kalchev; Christian Ketelsen; Panayot S. Vassilevski (SIAM J. Sci. Comput., 2013)

A Hierarchical Multilevel Markov Chain Monte Carlo Algorithm with Applications to Uncertainty Quantification in Subsurface Flow. - Tim J. Dodwell; Christian Ketelsen; Robert Scheichl; Aretha L. Teckentrup (SIAM/ASA J. Uncertain. Quantification, 2015)

Least-Squares Finite Element Discretization of the Neutron Transport Equation in Spherical Geometry. - Christian Ketelsen; Tom Manteuffel; Jacob B. Schroder (SIAM J. Sci. Comput., 2015)

A low-rank control variate for multilevel Monte Carlo simulation of high-dimensional uncertain systems. - Hillary R. Fairbanks; Alireza Doostan; Christian Ketelsen; Gianluca Iaccarino (J. Comput. Phys., 2017)

ERRATUM: A Hierarchical Multilevel Markov Chain Monte Carlo Algorithm with Applications to Uncertainty Quantification in Subsurface Flow. - Tim J. Dodwell; Christian Ketelsen; Robert Scheichl; Aretha L. Teckentrup (SIAM/ASA J. Uncertain. Quantification, 2019)

Multilevel Markov Chain Monte Carlo. - Tim J. Dodwell; Christian Ketelsen; Robert Scheichl; Aretha L. Teckentrup (SIAM Rev., 2019)