Add to ORKGThe problem of finding conditions under which two given operators say A and B have equal spectra has been considered by several authors. In this paper we show that quasi-similar operator
Abstract. The equation AX = XB implies A∗X = XB ∗ when A and B are nor-mal operators is known as the...
It is a well known fact in operator theory that for any operator A, the essential spectrum of A is c...
A quasi-Hermitian operator is an operator that is similar to its adjoint in some sense, via a metric...
In this paper we investigate the conditions under which two operators A and B are quasi-similar impl...
In this paper we investigate the conditions under which two operators A and B are quasi-similar impl...
In this paper, it is shown that a Putnam-Fuglede type commutativity theorem holds for w-hyponormal o...
In this paper, it is shown that a Putnam-Fuglede type commutativity theorem holds for \(\omega\)-hyp...
It is a well known fact in operator Theory that if A and B are operators with at least one of them i...
We consider the almost similarity property which is a new class in operator theory and was first int...
In this paper we show that if two operators A and B are quasi-invertible then AB and BA are also qua...
Motivated by the recent developments of pseudo-Hermitian quantum mechanics, we analyze the structure...
Abstract. We say operators A,B on Hilbert space satisfy Fuglede-Putnam theorem if AX = XB for some X...
We show that if T ∈() is a (p,k)-quasihyponormal operator and S ∗ ∈() is a p-hyponormal operator, an...
Motivated by the recent developments of pseudo-Hermitian quantum mechanics, we analyze the structur...
Motivated by the recent developments of pseudo-Hermitian quantum mechanics, we analyze the structure...
Abstract. The equation AX = XB implies A∗X = XB ∗ when A and B are nor-mal operators is known as the...
It is a well known fact in operator theory that for any operator A, the essential spectrum of A is c...
A quasi-Hermitian operator is an operator that is similar to its adjoint in some sense, via a metric...
In this paper we investigate the conditions under which two operators A and B are quasi-similar impl...
In this paper we investigate the conditions under which two operators A and B are quasi-similar impl...
In this paper, it is shown that a Putnam-Fuglede type commutativity theorem holds for w-hyponormal o...
In this paper, it is shown that a Putnam-Fuglede type commutativity theorem holds for \(\omega\)-hyp...
It is a well known fact in operator Theory that if A and B are operators with at least one of them i...
We consider the almost similarity property which is a new class in operator theory and was first int...
In this paper we show that if two operators A and B are quasi-invertible then AB and BA are also qua...
Motivated by the recent developments of pseudo-Hermitian quantum mechanics, we analyze the structure...
Abstract. We say operators A,B on Hilbert space satisfy Fuglede-Putnam theorem if AX = XB for some X...
We show that if T ∈() is a (p,k)-quasihyponormal operator and S ∗ ∈() is a p-hyponormal operator, an...
Motivated by the recent developments of pseudo-Hermitian quantum mechanics, we analyze the structur...
Motivated by the recent developments of pseudo-Hermitian quantum mechanics, we analyze the structure...
Abstract. The equation AX = XB implies A∗X = XB ∗ when A and B are nor-mal operators is known as the...
It is a well known fact in operator theory that for any operator A, the essential spectrum of A is c...
A quasi-Hermitian operator is an operator that is similar to its adjoint in some sense, via a metric...