Subject
Applied Mathematics,Analysis
Reference15 articles.
1. M. Anoussis, A. Katavolos, M. Lambrou, J. Operator Theory, 30:2 (1993), 267–299.
2. L. Chen, F. Lu, Linear Algebra Appl., 475 (2015), 62–72.
3. P. Halmos, Trans. Amer. Math. Soc., 114 (1969), 381–389.
4. W. Jing, S. Lu, P. Li, Bull. Austral. Math. Soc., 66:2 (2002), 227–232.
5. A. Katavolos, M. Lambrou, W. Longstaff, Studia Math., 105:1 (1993), 25–36.