High-Order Symplectic Partitioned Lie Group Methods. - Geir Bogfjellmo; Håkon Marthinsen (Found. Comput. Math., 2016)

The Lie Group Structure of the Butcher Group. - Geir Bogfjellmo; Alexander Schmeding (Found. Comput. Math., 2017)

Hamiltonian B-series and a Lie algebra of non-rooted trees. - Geir Bogfjellmo; Charles Curry; Dominique Manchon (Numerische Mathematik, 2017)

A Numerical Algorithm for C2-Splines on Symmetric Spaces. - Geir Bogfjellmo; Klas Modin; Olivier Verdier (SIAM J. Numer. Anal., 2018)

Using aromas to search for preserved measures and integrals in Kahan's method. - Geir Bogfjellmo; Elena Celledoni; Robert I. McLachlan; Brynjulf Owren; Reinout Quispel (Math. Comput., 2023)