On a connected dense proper subgroup of whose complement is connected
Author: Ryuji Maehara
Journal: Proc. Amer. Math. Soc. 97 (1986), 556-558
MSC: Primary 54D05; Secondary 39B05, 54G15
MathSciNet review: 840645
Abstract: A simple proof is given to the theorem of F. B. Jones which asserts the existence of such a subgroup of the additive group as in the title.