spacer The "Mulligan conjecture" link to previous slide link to next slide
     
dividing line
   
text bullet Shear gratings modulate curl (with 0 div)
   
text bullet Compression modulate div (with 0 curl)
   
text bullet Do shear and compression gratings form
text bullet a Fourier basis for motion fields?
   
text bullet Yes! (with restrictions)
   
text bullet Proved by Graeme Mitchison
   
text bullet Demo