BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//ox.ac.uk//NONSGML oxford.event//EN
X-WR-TIMEZONE:Europe/London
BEGIN:VTIMEZONE
TZID:Europe/London
X-LIC-LOCATION:Europe/London
BEGIN:DAYLIGHT
DTSTART:19700329T010000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:BST
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:19701025T020000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:GMT
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
SUMMARY:The “imaginary organism” and Turing’s delicate art of non-li
 near modelling
DTSTART;TZID=Europe/London:20260603T170000
DTEND;TZID=Europe/London:20260603T183000
DTSTAMP:20260603T175110Z
UID:51efb075-224e-f111-bec7-7c1e52046959
CREATED:20260512T164855Z
DESCRIPTION:More than seventy years after its publication\, Turing’s art
 icle “The Chemical Basis of Morphogenesis” is still able to surprise i
 ts reader\, in particular for the power and the depth of its vision. If we
  know from his biographer\, Andrew Hodges\, that Turing became interested 
 in embryology and morphogenesis because he wanted to build or\, better\, t
 o grow a brain\, many questions still arise for the reader of the original
  article: why did Turing – a mathematician\, a logician\, a cryptographe
 r\, one of the fathers of computer science – not use any informational m
 etaphor associated with the notion of “genetic program” in his work on
  morphogenesis\, preferring instead to develop a modelling approach based 
 on a system of partial differential equations ? Where did he draw his mode
 lling inspiration from\, both from the point of view of the mathematics an
 d from the point of view of references to biology ? In my presentation I w
 ill address these questions by highlighting the morphological connotations
  of Turing’s work in biology\, that can be related to Turing’s interes
 t\, in D’Arcy Wentworth Thompson’s classic On Growth and Form (1917). 
 The 1952 article is rather sparse in indications in this regard\, which ar
 e\, however\, provided by Turing’s other writings\, unpublished during h
 is lifetime\, in which he situates his work in continuity with Thompson’
 s morphological questions. I will also suggest that\, as in a virtuous cir
 cle\, Turing masterfully brings to life a synergy between a morphological 
 look at the living (that implies that his work has a connotation in theore
 tical biology) and a mathematical exploration of the non-linear\, helped b
 y an appropriate and meaningful use of numerical calculus.
LAST-MODIFIED:20260512T165318Z
LOCATION:Mathematical Institute - L4\, L4 Mathematical Institute Woodstock
  Road Oxford Oxfordshire OX2 6GG United Kingdom
SPEAKER:Sara Franceschelli (ENS de Lyon\, IHRIM & IXXI)
END:VEVENT
END:VCALENDAR