Journals / European Journal of Pure and Applied Mathematics (elektronik) / 2010 / Cilt: 3 - Sayı: 4
Fredholmness of combinations of two idempotents
- Pages
- 678–685
- DOI
- —
Abstract
If P and Q are two idempotents on a Hilbert space, in this paper, we prove that Fredholmness of aP + bQ − cPQ is independent of the choice of a, b, c with ab $neq$ 0. 2000 Mathematics Subject Classifications: 15A03, 15A24