[PDF] Top 20 A study on numerical range of operators in a hilbert space
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A study on numerical range of operators in a hilbert space
... Notwithstanding the fact that the numerical range is still a useful to o l f o r the study of finite matrices, the scope of the concept of numerical ranges has been enlarged by its usefu[r] ... See full document
107
Isomorphism of Groups of Operators on Hilbert Space
... In this research paper we have applied our mind to study isomorphism of groups of non singular operators. Here we have given some of the suitable examples of mappings which form isomorphism. A few theorems ... See full document
6
21. On the class of $n$-power quasi-normal operators on Hilbert space
... complex Hilbert space, is quasi-normal if T and T ∗ T ...quasi-normal operators was first introduced and studied by ...normal operators and ...normal operators as a generalization of ... See full document
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On some fuzzy hyponormal operators
... our study on Fuzzy hyponormal operators acting on a fuzzy Hilbert space(FH ...hyponormal operators on a FH ...Banach space (FB-space) and some definitions, theorems are ... See full document
5
COMMON UNIQUE FIXED POINT THEOREM FOR RANDOM OPERATORS IN HILBERT SPACE
... The study of the random fixed point theorems in abstract spaces is initiated by Spacek [1] and Hans [2] and are the stochastic generalizations of the classical fixed point theorems in separable Banach ...the ... See full document
7
Vector Inequalities for Powers of Some Operators in Hilbert Spaces
... Vector inequalities for powers of some operators in Hilbert spaces with applications for operator norm, numerical radius, commutators and self- commutators are given1. The numerical rang[r] ... See full document
12
Power Inequalities for the Numerical Radius of a Product of Two Operators in Hilbert Spaces
... Dragomir, Inequalities for the numerical radius, the norm and the maximum of the real part of bounded linear operators in Hilbert spaces.. Linear Algebra Appl.[r] ... See full document
9
Spatial Numerical Range of Operators on Weighted Hardy Spaces
... spatial numerical range of operators on weighted Hardy spaces and give conditions for closedness of numerical range of compact ...spatial numerical range of finite rank ... See full document
9
Norm and Numerical Radius Inequalities for Two Linear Operators in Hilbert Spaces
... Dragomir, Some inequalities of the Gr¨ uss type for the numerical radius of bounded linear operators in Hilbert spaces, Preprint, RGMIA Res.. Gustafson and D.K.M.[r] ... See full document
10
Some numerical radius inequalities for power series of operators in Hilbert spaces
... of operators defined by power series, which incorporate many fundamental functions of interest such as the exponential function, some trigonometric functions, the functions f (z) = ( ± z) – , g(z) = log( ± z) – ... See full document
12
Reverse Inequalities for the Numerical Radius of Linear Operators in Hilbert Spaces
... Some elementary inequalities providing upper bounds for the dif- ference of the norm and the numerical radius of a bounded linear operator on Hilbert spaces under appropriate conditions [r] ... See full document
7
Inequalities for the Norm and the Numerical Radius of Linear Operators in Hilbert Spaces
... The main aim of this paper is to establish other inequalities between the operator norm and its numerical radius. We employ, amongst others, the Buzano inequality as well as some results for vectors in inner ... See full document
7
Inequalities for the Norm and Numerical Radius of Composite Operators in Hilbert Spaces
... DRAGOMIR, Reverse inequalities for the numerical radius of linear operators in Hilbert spaces, RGMIA Res.. S ´ ANDOR, Some inequalities in prehilbertian spaces, Studia Univ.[r] ... See full document
11
Norm and numerical radius inequalities for sums of operators in Hilbert spaces
... on numerical radius inequalities see [1], [3]-[7], [9]-[12], [14] and ...linear space over the real or complex number field K and let us denote by H (X) the class of all positive semi-definite Hermitian ... See full document
24
Long range scattering with Stark effect and almost periodic potentials
... Long range scattering, Stark effect, almost periodic, two Hilbert space wave operators.. 1991 AMS Subject Classification.[r] ... See full document
8
Semi-Inner Products and the Numerical Radius of Bounded Linear Operators in Hilbert Spaces
... Motivated by the natural connection that exists between the semi-inner products hA, Ii p,n , hA, Ii p,w with p ∈ {i, s} , the numerical radius w (A) and the operator norm kAk outlined above, the aim of this paper ... See full document
16
Norm and Numerical Radius Inequalities for Sums of Bounded Linear Operators in Hilbert Spaces
... and numerical radius of sums of bounded linear operators in Hilbert ...linear operators and their applications for the Cartesian decomposition of an operator are also ... See full document
13
On Eigenvalues and Boundary Curvature of the Numerical Rang of Composition Operators on Hardy Space
... 2015 On Eigenvalues and Boundary Curvature of the Numerical Rang of Composition Operators on Hardy Space... Recall that convexoid element is an element such that its numerical range coin[r] ... See full document
5
Numerical Radius Inequalities for Sums and Products of Operators
... 2011 Numerical Radius Inequalities for Commutators of Hilbert Space Operators.. Numerical Functional Analysis and Optimization, 32, 739-749.[r] ... See full document
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On some inequalities for numerical radius of operators in Hilbert Spaces
... (1.13) w (T ) = sup {|λ| , λ ∈ W (T )} = sup {|hT x, xi| , kxk = 1} . It is well known that w (·) is a norm on the Banach algebra B (H) of all bounded linear operators T : H → H. This norm is equivalent with the ... See full document
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