Blar i Department of Mathematics and Physics (TN-IMF) på emneord "Wick-rotasjoner"
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A mathematical approach to Wick rotations
(PhD thesis UiS;536, Doctoral thesis, 2020-09)In this thesis we define Wick-rotations mathematically using pseudo-Riemannian geometry, and relate Wick-rotations to real geometric invariant theory (GIT). We discover some new results concerning the existence of Wick ... -
Wick-rotations of pseudo-Riemannian Lie groups
(Peer reviewed; Journal article, 2020)We study Wick-rotations of left-invariant metrics on Lie groups, using results from real GIT (Helleland and Hervik, 2018; Helleland and Hervik, 2019). An invariant for Wick-rotation of Lie groups is given, and we describe ...