TY - JOUR T1 - A note on generalized and hypergeneralized projectors JF - Linear Algebra and its Applications Y1 - 2006 A1 - Stewart, G.W. KW - Generalized projection KW - projection KW - Spectral decomposition AB - Groß and Trenkler [Generalized and hypergeneralized projectors, Linear Algebra Appl. 264 (1997) 463–474] have introduced two generalizations of orthogonal projectors called generalized projectors and hypergeneralized projectors. In this note we characterize these generalizations by their spectral decompositions. VL - 412 SN - 0024-3795 UR - http://www.sciencedirect.com/science/article/pii/S0024379505003836 CP - 2–3 M3 - 10.1016/j.laa.2005.07.022 ER -