3 papers
math.AP2023
Remarks on the linear wave equation
John M. Ball
We make some remarks on the linear wave equation concerning the existence and uniqueness of weak solutions, satisfaction of the energy equation, growth properties of solutions, the…
cond-mat.mtrl-sci2017
Interaction of martensitic microstructures in adjacent grains
John M. Ball, Carsten Carstensen
It is often observed that martensitic microstructures in adjacent polycrystal grains are related. For example, micrographs of Arlt exhibit propagation of layered structures across…
cond-mat.soft2017
Liquid crystals and their defects
John M. Ball
These lecture notes discuss classical models of liquid crystals, and the different ways in which defects are described according to the different models.