SUMS OF PROJECTIONS

Authors
SPIEGEL E
Citation
E. Spiegel, SUMS OF PROJECTIONS, Linear algebra and its applications, 187, 1993, pp. 239-249
Citations number
3
Categorie Soggetti
Mathematics,Mathematics
Journal title
Linear algebra and its applications → ACNP
ISSN journal
00243795
Volume
187
Year of publication
1993
Pages
239 - 249
Database
ISI
SICI code
0024-3795(1993)187:<239:SOP>2.0.ZU;2-8
Abstract
Necessary and sufficient conditions are given for an n X n complex mat rix to be the sum of projection matrices. The result is applied to sho w when a matrix is the sum of involutions.