Order Separability of Free Products with Amalgamated Subgroup / Edynak V.V. // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2011. № 5. P. 6-14 [Moscow Univ. Math. Bulletin. Vol. 72, N 2, 2017. P. 0].

The order separability is proved for the free product of two free groups with the amalgamated maximal cyclic subgroups.

Key words: free products, residual properties.