Proc. Japan Acad. Ser. A Math. Sci. 80 (8), 151-154, (Oct. 2004) DOI: 10.3792/pjaa.80.151
Tetsuya Ishiwata, Takeo K. Ushijima, Hiroki Yagisita, Shigetoshi Yazaki
KEYWORDS: crystalline curvature, nonconvex self-similar shrinking curve, curve shortening flow equation, blow-up rate, 53A04, 34A34, 74N05
This note gives examples of nonconvex self-similar solutions for a crystalline curvature flow with an interfacial energy of which the Wulff shape is a regular triangle or a square.