Branching Transition in Viscous Fingering with a Liquid Crystal

The phenomenon of branching has already proven to have some universality throughout this book. Misbah has even shown in the present chapter how the whole dynamics of a problem — including this branching phenomenon — can be mapped onto a different one in some approximation. In this spirit, the use of a unifying mathematical formulation in different physical models of branching can serve as a basis to understand why so different problems share the same branching phenomenon.