Some decomposable continua and Whitney levels of their hyperspaces

Eiichi Matsuhashi, Yoshiyuki Oshima

We introduce the new class of continua; $D^{\ast \ast }$-$continua$. The classes of Wilder continua and $D^{\ast }$-continua are strictly contained in the class of $D^{\ast \ast }$-continua. Also, the…