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SUMMARY:Erik Jansson (Chalmers University of Technology and University of 
 Gothenburg)
DTSTART:20240828T111500Z
DTEND:20240828T120000Z
DTSTAMP:20260422T155052Z
UID:gbgstats/63
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/gbgstats/63/
 ">Sampling non-stationary Gaussian random fields on hypersurfaces using su
 rface finite element methods</a>\nby Erik Jansson (Chalmers University of 
 Technology and University of Gothenburg) as part of Gothenburg statistics 
 seminar\n\nLecture held in MVL14.\n\nAbstract\nIn the middle of the previo
 us century\, Peter Whittle demonstrated that Whittle–Matérn Gaussian\nr
 andom fields on Euclidean domains can be obtained as solutions to fraction
 al elliptic stochastic\npartial differential equations (SPDEs). The SPDE
 –random field connection can be leveraged to\ngenerate random fields on 
 other domains\, such as curves or surfaces\, by solving an SPDE on\nthat d
 omain. Selecting a differential operator with variable coefficients\, we o
 btain a flexible\nclass of non-stationary random fields. We consider how t
 he computational technique of surface\nfinite elements can be utilized to 
 sample random fields on surfaces and briefly discuss how\nstrong error bou
 nds are obtained using complex analysis and operator theory.  \nThis talk 
 is based on joint work with Annika Lang and Mike Pereira.\n
LOCATION:https://researchseminars.org/talk/gbgstats/63/
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