On quadruples of projectors connected by a linear relation

  • K. A. Yusenko

Abstract

We describe the set of γ ∈ ℝ for which there exist quadruples of projectors P i for a fixed collection of numbers $\alpha_i \in \mathbb{R}_+, \quad i = \overline{1,4} $, такі, що $\alpha_1 P_1 + \alpha_2 P_2 + \alpha_3 P_3 + \alpha_4 P_4 = \gamma I$.
Published
25.09.2006
How to Cite
YusenkoK. A. “On Quadruples of Projectors Connected by a Linear Relation”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 58, no. 9, Sept. 2006, pp. 1289–1295, https://umj.imath.kiev.ua/index.php/umj/article/view/3531.
Section
Short communications