In this paper we study linear fractional relations defined in the following way. Let Hi, H′i, i = 1, 2, be Hilbert spaces. We denote the space of bounded linear operators acting from Hj to H′i by L(Hj,H′i). Let T ∈ L(H1 ⊕ H2,H′1 ⊕ H′2). To each such operator there corresponds a 2 × 2 operator matrix of the for
In this paper we introduce a method to define fractional operators using mean value operators. In pa...
AbstractLet B(H) be the algebra of all bounded linear operators on a complex Hilbert space H. In 197...
Pairs of self-adjoint linear operators in a Hilbert space which satisfy semilinear relations arise i...
Abstract. Consider a bounded linear operator T between Banach spaces B, B ′ which can be decomposed ...
denote the space of all bounded linear operators on H. For each n ∈ N, the l2-direct sum Hn = H ⊕ ·...
Columns and rows are operations for pairs of linear relations in Hilbert spaces, modelled on the cor...
A classical result of Apostol (MichiganMath. J. 32, 279–294, 1985) concerning the reduced minimum mo...
AbstractWe study linear operators between nondegenerate partial inner product spaces and their relat...
AbstractFor any two complex Hilbert spaces H and K, let BL(H,K) be the set of bounded linear operato...
We show that any bounded matrix of linear functionals [fij] : Mn(A) → Mn(C) has a representation fi...
AbstractLet A ∈ L(H1), B ∈ L(H2) (where H1, H2 are Hilbert spaces), and let δA, B denote the operato...
The book presents an introduction to the geometry of Hilbert spaces and operator theory, targeting g...
We study module spaces for linear relations (multi-valued operators) in a Hilbert space. The defect ...
For Hilbert spaces $\s X, \s Y$, the set of maximally entangled states, $\MES_{\s X, \s Y}$, is a se...
This thesis presents solutions to certain problems in the extension theory in Hilbert spaces. Basica...
In this paper we introduce a method to define fractional operators using mean value operators. In pa...
AbstractLet B(H) be the algebra of all bounded linear operators on a complex Hilbert space H. In 197...
Pairs of self-adjoint linear operators in a Hilbert space which satisfy semilinear relations arise i...
Abstract. Consider a bounded linear operator T between Banach spaces B, B ′ which can be decomposed ...
denote the space of all bounded linear operators on H. For each n ∈ N, the l2-direct sum Hn = H ⊕ ·...
Columns and rows are operations for pairs of linear relations in Hilbert spaces, modelled on the cor...
A classical result of Apostol (MichiganMath. J. 32, 279–294, 1985) concerning the reduced minimum mo...
AbstractWe study linear operators between nondegenerate partial inner product spaces and their relat...
AbstractFor any two complex Hilbert spaces H and K, let BL(H,K) be the set of bounded linear operato...
We show that any bounded matrix of linear functionals [fij] : Mn(A) → Mn(C) has a representation fi...
AbstractLet A ∈ L(H1), B ∈ L(H2) (where H1, H2 are Hilbert spaces), and let δA, B denote the operato...
The book presents an introduction to the geometry of Hilbert spaces and operator theory, targeting g...
We study module spaces for linear relations (multi-valued operators) in a Hilbert space. The defect ...
For Hilbert spaces $\s X, \s Y$, the set of maximally entangled states, $\MES_{\s X, \s Y}$, is a se...
This thesis presents solutions to certain problems in the extension theory in Hilbert spaces. Basica...
In this paper we introduce a method to define fractional operators using mean value operators. In pa...
AbstractLet B(H) be the algebra of all bounded linear operators on a complex Hilbert space H. In 197...
Pairs of self-adjoint linear operators in a Hilbert space which satisfy semilinear relations arise i...