8), but it is wrong; we give a counter example for the case n≡ 4 (mod 8). In this paper we not only give the correct metric dimension in this case but also solve the open problem regarding the metric dimension of Mn when n≡ 2 (mod 8).
Abstract
It is claimed in [13] that the metric dimension of the Möbius ladder Mn is 3 when n≡ 2 (mod 8), but it is wrong; we give a counter example for the case n≡ 4 (mod 8). In this paper we not only give the correct metric dimension in this case but also solve the open problem regarding the metric dimension of Mn when n≡ 2 (mod 8).