@article{oai:tsukuba.repo.nii.ac.jp:00026971, author = {八森, 正泰 and 繁野, 麻衣子 and Takehara, Reiko and Hachimori, Masahiro and Shigeno, Maiko}, issue = {3}, journal = {Information processing letters}, month = {Jan}, note = {In [N. Alon, M. Feldman, A.D. Procaccia, M. Tennenholtz, A note on competitivediffusion through social networks, Inform. Process. Lett. 110 (2010) 221–225], the authors introduced agame-theoretic model of diffusion process through a network. They showed a relation between the diameter of a given network and existence of pureNashequilibria in the game. Theorem 1 of their paper says that apureNashequilibrium exists if the diameter is at most two. However, we have an example which does not admit apureNashequilibrium even if the diameter is two. Hence we correct the statement of Theorem 1 of their paper.}, pages = {59--60}, title = {A comment on pure-strategy Nash equilibria in competitive diffusion games}, volume = {112}, year = {2012} }