Those Eigenstrains

Math genius in repose

We go for our autumnal walk in Oxford with the Three Zees plus Nita and Alain who is occupied with a paper titled: "Universal Eigenstrains and Deformations in Compressible Isotropic Solids." All I can say is: what the fuck is that all about ? 

To prepare the research, Alain teamed up with a genius Iranian named Arash Yavari who received his applied maths PhD at CalTech and states, on his website, that his interest is "developing systematic theories of discrete mechanics for crystalline solids with defects." I always went with distance running or travelling. 

Sadly dudes like Arash will surely be discouraged from coming to Britain following Brexit.

Eric is the only friend I can think of who might know about an Eigenstrain. Or Ben. Anyways, for all those interested, here is a brief on Alain's thesis : 

"Finite eigenstrains in a nonlinear solid can be modelled by a Riemannian material manifold with a metric that explicity depends on the eigenstrains. We show that covariantly homogeneous deformations - deformations with covariantley constant deformations gradients - are the only universal deformations." 

And so on an so forth