Flores, RamonScherer, Jerome2018-12-132018-12-132018-12-132018-12-0110.1007/s00009-018-1273-yhttps://infoscience.epfl.ch/handle/20.500.14299/152235WOS:000451647700001We prove that, in the category of groups, the composition of a cellularization and a localization functor need not be idempotent. This provides a negative answer to a question of Emmanuel Dror Farjoun.Mathematics, AppliedMathematicslocalizationstext::journal::journal article::research article