*Definition [#w4a49c3a] A topological space is called peripherally bicompact or π-bicompact if every point has an neighborhood basis by open sets whose boundary is [[bicompact]]. *Remark [#g8cc3da0] Here [[bicompact]] means so-called [[compact]]. *Reference [#i4f79714] P.S. Aleksandrov, ''On some basic directions in general topology'',Russ. Math. Surv. 19:1 (1964).