Gradient growth and relaxation to jump profiles for 3-fold symmetric scale-invariant Euler flows
We consider long-time behavior of the zero-homogeneous solutions with 3-fold symmetry to the two-dimensional Euler equation. This is the remaining case in the relaxation theory of Said, Elgindi, and Murray [Ann. Sci. \'{E}c. Norm. Sup\'{e}r. (4) \textbf{58} (2025), no.~4, 943--970], which treats $m$-fold symmetry solut...