BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//talks.cam.ac.uk//v3//EN
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
TZNAME:BST
DTSTART:19700329T010000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
TZNAME:GMT
DTSTART:19701025T020000
RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:Stochastic Galerkin particle methods - Lorenzo Par
eschi (Università degli Studi di Ferrara)
DTSTART;TZID=Europe/London:20220523T111500
DTEND;TZID=Europe/London:20220523T121500
UID:TALK173411AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/173411
DESCRIPTION:In this talk we survey some recent results on the
construction of particle methods for kinetic equat
ions with uncertain inputs. In our approach\, to t
ake into account the problem uncertainties\, each
particle position and velocity depends on a set of
random parameters. Using a stochastic Galerkin pr
ojection method it is possible to project the part
icle dynamics into the coefficients space of the c
orresponding generalized polynomial chaos (gPC) ex
pansion. In contrast to stochastic Galerkin method
s based on deterministic discretizations in the ph
ase space of the kinetic equation\, the present ap
proach does not have the drawbacks of loss of phys
ical conservations\, positivity\, and hyperbolicit
y. Several applications to collective behavior\, r
arefied gas dynamics and plasma physics are consid
ered showing spectral convergence for smooth solut
ions in the random space. Finally\, we will discus
s some possible generalizations of these ideas to
system of conservation laws. This is a joint resea
rch with J.A. Carrillo\, G. Bertaglia\, A. Medagli
a and M.Zanella.
LOCATION:Seminar Room 1\, Newton Institute
CONTACT:
END:VEVENT
END:VCALENDAR