Caustics of convex curves
Caustics of convex curves
复制标题
凸曲线的焦散
DOI:
10.1142/s0218216514500503
复制
发表时间:
2014
影响因子:
0.5
通讯作者:
M. Umehara
中科院分区:
文献类型:
--
作者:
Hiro Gounai;M. Umehara
It is well-known that the focal set (i.e. the image of the caustic) of a given convex closed curve γ admits singular points. In this paper, we classify the diffeomorphic type of focal sets of convex curves which admit at most four cusps.
DOI:
10.1090/s0002-9939-1991-1043406-7
发表时间:
2013
期刊:
Proc. Amer. Math. Soc.
影响因子:
--
作者:
S. Ohno;T. Ozawa and M. Umehara
通讯作者:
T. Ozawa and M. Umehara