ON CLASS (BD) OPERATORS OF ORDER (n+k)
Keywords:
D-operator, Normal, N Quasi D-operator, complex symmetric operators, n-power D-operator, (BD) operators.Abstract
In this paper, we introduce the class (BD) of order (n+k) operators acting on the classical Hilbert space H. An operator TEB(H) is said to belong to the class (BD) of order (n+k) if T*2(TD)2 commutes with (T*(n+k)TD)2, that is, [T*2(TD)2, (T*(n+k)TD)2 ]=0. We investigate the properties of this class and analyze its relation to the (n+k)-power D-operator. This study explores various aspects such as unitary equivalence, restriction to closed subspaces, and the behavior of these operators under complex conjugation. In addition, we examine the connection between (BD) operators of order (n+k) and D-operators of the same order.
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