Partial projective representations and partial actions

The concept of a partial projective representation of a group is introduced and studied. The interaction with partial actions is explored. It is shown that the factor sets of partial projective representations over a field K are exactly the K-valued twistings of crossed products by partial actions. (C) 2009 Elsevier B.V. All rights reserved.

CNPq

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

FAPESP (Brazil)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)