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DTSTAMP:20260509T035050Z
SUMMARY:Professor S. Jon Chapman (Oxford): Asymptotics beyond all orders: t
 he devil’s invention?
DESCRIPTION:“Divergent series are the invention of the devil\, and it is 
 shameful to base on them any demonstration whatsoever.” — N. H. Abel.\
 nThe lecture will introduce the concept of an asymptotic series\, showing 
 how useful divergent series can be\, despite Abel’s reservations. We wil
 l then discuss Stokes’ phenomenon\, whereby the coefficients in the seri
 es appear to change discontinuously. We will show how understanding Stokes
  phenomenon is the key which allows us to determine the qualitative and qu
 antitative behaviour of the solution in many practical problems. Examples 
 will be drawn from the areas of surface waves on fluids\, crystal growth\,
  dislocation dynamics\, localised pattern formation\, and Hele-Shaw flow.\
 nIf you are planning to attend the colloquium\, we would also like to invi
 te you join the speaker and the organisers for coffee/tea and pastries in 
 the 5th Floor Huxley Common Room at 15:20. 
URL:https://www.imperial.ac.uk/events/102760/professor-s-jon-chapman-oxford
 -asymptotics-beyond-all-orders-the-devils-invention/
DTSTART;TZID=Europe/London:20160225T160000
DTEND;TZID=Europe/London:20160225T170000
LOCATION:United Kingdom
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