BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Weak formulation of dynamical low-rank approximation for parabolic
  problems
DTSTART:20200319T161500
DTEND:20200319T171500
DTSTAMP:20260510T202427Z
UID:e53db0368bc1cc9b9af492bb2cc716bd4ddb20d95f53d0d7938560b6
CATEGORIES:Conferences - Seminars
DESCRIPTION:Mr. André Uschmajew\nComputational Mathematics Seminar\n\nAbs
 tract :\nDynamical low-rank approximation of matrices can be used for time
  integration of matrix valued ODEs on low-rank rank manifolds based on a t
 ime dependent variational principle. Several applications arise from two-d
 imensional PDEs. While after discretization the existence of solutions to 
 the resulting nonlinear ODE is ensured by standard results\, setting up a 
 well posed problem in function space is not as obvious. We present a weak 
 formulation of the time dependent variational principle that is applicable
  to dynamical low-rank approximation of parabolic problems. The existence 
 of solutions can be shown based on a variational time-stepping scheme on t
 he low-rank manifold that is related to practical methods for low-rank int
 egration. (Joint work with Markus Bachmayr and Emil Kieri.)
LOCATION:MA A3 30 https://plan.epfl.ch/?room==MA%20A3%2030
STATUS:CANCELLED
END:VEVENT
END:VCALENDAR