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SUMMARY:Rigidity theory and symmetry - Alison La Porta\, University of Lan
 caster
DTSTART:20250613T140000Z
DTEND:20250613T150000Z
UID:TALK231244@talks.cam.ac.uk
CONTACT:Siao Chi Mok
DESCRIPTION:Geometric rigidity is a theory that studies geometric structur
 es known as frameworks through tools from various areas of mathematics\, i
 ncluding representation theory\, algebra\, and combinatorics.\n\nOne type 
 of framework which is central to rigidity theory is the bar-joint framewor
 k\, a structure composed of stiff bars linked together by freely rotationa
 l joints. The main goal is to determine when such a structure is rigid\, i
 .e. when it cannot be deformed in any way that keeps its bar-lengths fixed
 . \n\nUnder some genericity assumptions\, rigidity is well-understood in t
 he Euclidean plane. However\, the problem becomes more difficult when we d
 rop the genericity requirements. When introducing symmetry\, some framewor
 ks in the Euclidean plane behave in unexpected ways.\n\nIn this talk\, I w
 ill introduce some notions of rigidity and see how symmetry affects rigidi
 ty in the Euclidean plane.
LOCATION:MR19 (note venue change!)
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