A note on doubles of groups Academic Article uri icon

abstract

  • Abstract Recently, Rips produced an example of a double of two free groups which has unsolvable generalized word problem. In this paper, we show that Rips's example fits into a large class of doubles of groups, each member of which contains F 2× F 2 and therefore has unsolvable generalized word problem and is incoherent.

publication date

  • January 1, 2001