In this note, we investigate characterizations for k-generalized projections (i.e., A^k =A*) on Hilbert spaces. The obtained results generalize those for generalized projections on Hilbert spaces in [Hong-Ke Du, Yuan Li, The spectral characterization of generalized projections, Linear Algebra Appl. 400 (2005) 313-318] and those for matrices in [J. Benítez, N. Thome, Characterizations and linear combinations of k-generalized projectors, Linear Algebra Appl. 410 (2005) 150-159]
AbstractLet H1,H2 be two Hilbert spaces over the complex field C and let T:H1 → H2 be a bounded line...
Let H be a Krein space with fundamental symmetry J. Along this paper, the geometric structure of the...
Let X,Y be normal bounded operators on a Hilbert space such that e X=eY. If the spectra of X and Y a...
AbstractIn this note, we investigate characterizations for k-generalized projections (i.e., Ak=A∗) o...
AbstractIn this note, The spectral characterization of generalized projections are established
AbstractIn this note we investigate generalized projections in Banach algebras. Our results generali...
AbstractIn this note, we investigate characterizations for k-generalized projections (i.e., Ak=A∗) o...
AbstractOne of the results of Groß and Trenkler [Linear Algebra Appl. 264 (1997) 463] asserts that a...
Let H be a separable complex Hilbert space and B(H ) the algebra of all bounded linear operators on ...
AbstractGroß and Trenkler [Generalized and hypergeneralized projectors, Linear Algebra Appl. 264 (19...
Given a bounded positive linear operator A on a Hilbert space H we consider the semi-Hilbertian spac...
AbstractFor any two complex Hilbert spaces H and K, let BL(H,K) be the set of bounded linear operato...
AbstractLet (H,J) be a Krein space with selfadjoint involution J. Starting with a canonical represen...
AbstractAn operator means a bounded linear operator on a Hilbert space H. We obtained the basic prop...
Let H be a Krein space with fundamental symmetry J. Along this paper, the geometric structure of the...
AbstractLet H1,H2 be two Hilbert spaces over the complex field C and let T:H1 → H2 be a bounded line...
Let H be a Krein space with fundamental symmetry J. Along this paper, the geometric structure of the...
Let X,Y be normal bounded operators on a Hilbert space such that e X=eY. If the spectra of X and Y a...
AbstractIn this note, we investigate characterizations for k-generalized projections (i.e., Ak=A∗) o...
AbstractIn this note, The spectral characterization of generalized projections are established
AbstractIn this note we investigate generalized projections in Banach algebras. Our results generali...
AbstractIn this note, we investigate characterizations for k-generalized projections (i.e., Ak=A∗) o...
AbstractOne of the results of Groß and Trenkler [Linear Algebra Appl. 264 (1997) 463] asserts that a...
Let H be a separable complex Hilbert space and B(H ) the algebra of all bounded linear operators on ...
AbstractGroß and Trenkler [Generalized and hypergeneralized projectors, Linear Algebra Appl. 264 (19...
Given a bounded positive linear operator A on a Hilbert space H we consider the semi-Hilbertian spac...
AbstractFor any two complex Hilbert spaces H and K, let BL(H,K) be the set of bounded linear operato...
AbstractLet (H,J) be a Krein space with selfadjoint involution J. Starting with a canonical represen...
AbstractAn operator means a bounded linear operator on a Hilbert space H. We obtained the basic prop...
Let H be a Krein space with fundamental symmetry J. Along this paper, the geometric structure of the...
AbstractLet H1,H2 be two Hilbert spaces over the complex field C and let T:H1 → H2 be a bounded line...
Let H be a Krein space with fundamental symmetry J. Along this paper, the geometric structure of the...
Let X,Y be normal bounded operators on a Hilbert space such that e X=eY. If the spectra of X and Y a...
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