On Scaling Properties for a Class of Two-Well Problems for Higher Order Homogeneous Linear Differential Operators

Abstract

We study the scaling behaviour of a class of compatible two-well problems for higher order, homogeneous linear differential operators. To this end, we first deduce general lower scaling bounds which are determined by the vanishing order of the symbol of the operator on the unit sphere in direction of the associated element in the wave cone. We complement the lower bound estimates by a detailed analysis of the two-well problem for generalized (tensor-valued) symmetrized derivatives with the help of the (tensor-valued) Saint-Venant compatibility conditions. In two spatial dimensions for highly symmetric boundary data (but arbitrary tensor order $m\in \mathbb{N}$) we provide upper bound constructions matching the lower bound estimates. This illustrates that for the two-well problem for higher order operators new scaling laws emerge which are determined by the Fourier symbol in the direction of the wave cone. The scaling for the symmetrized gradient from \cite{CC15} which was also discussed in \cite{RRT23} provides an example of this family of new scaling laws.

arXiv comment36 pages, 1 figure, comments welcome; changes in the upper bound construction (Lemmas 4.2, 4.5); restricted to $\lambda =1/2$ in the upper bound construction

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• On the Scaling of the Cubic-to-Tetragonal Phase Transformation with Displacement Boundary Conditions