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SUMMARY:Eivind Schneider
DTSTART:20211110T162000Z
DTEND:20211110T180000Z
DTSTAMP:20260423T023011Z
UID:GDEq/50
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GDEq/50/">Di
 fferential invariants of Kundt spacetimes</a>\nby Eivind Schneider as part
  of Geometry of differential equations seminar\n\n\nAbstract\nWe compute g
 enerators for the algebra of rational scalar differential invariants of ge
 neral and degenerate Kundt spacetimes. Special attention is given to dimen
 sions 3 and 4 since in those dimensions the degenerate Kundt metrics are k
 nown to be exactly the Lorentzian metrics that can not be distinguished by
  polynomial curvature invariants constructed from the Riemann tensor and i
 ts covariant derivatives.\n\nThe talk is based on joint work with Boris Kr
 uglikov.\n
LOCATION:https://researchseminars.org/talk/GDEq/50/
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