BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Artifacts in Subdivision curves/Calculating Eigencomponents for Su
 bdivision Schemes - Ursula Augsdorfer and Malcolm Sabin
DTSTART:20060615T131500Z
DTEND:20060615T140000Z
UID:TALK4912@talks.cam.ac.uk
CONTACT:Lorisa Dubuc
DESCRIPTION:Ursula's talk - Artifacts in Subdivision curves:\n\nDespite it
 s many advantages\, certain problems prevent subdivision from being used a
 s the main design tool in engineering applications. One of these is the pr
 esence of artifacts in its limit surface. For a subdivision\nscheme to bec
 ome a powerful design tool the difference between designer intent and what
  emerges as a limit curve or surface has to be understood and\, ideally\, 
 eliminated. This Thurday I will talk about one type of\nartifact present i
 n all geometric curves and demonstrate how it can be analysed and its magn
 itude determined for a number of different subdivision schemes.\n\nMalcolm
 's talk - Calculating Eigencomponents for Subdivision Schemes:\n\nEigenval
 ues and vectors are a fundamental tool for analyzing subdivision schemes.\
 n\nThe talk describes ways of calculating them which are efficient (no sol
 ving of high degree polynomials) but\, more importantly\, give insight int
 o the structure of what is going on.\n\nThis is a rehearsal for a presenta
 tion due to be made at the Curves & Surfaces conference in Avignon later i
 n June.
LOCATION:Rainbow Room\, Computer Laboratory
END:VEVENT
END:VCALENDAR