On the spectrum of n-tuples of p-hyponormal operators
On the spectrum of n-tuples of p-hyponormal operators
Let B ( H ) denote the algebra of operators (i.e., bounded linear transformations) on the Hilbert space H. A ∈ B ( H ) is said to be p -hyponormal (0< p <l), if ( AA *) γ < (A*A) p . (Of course, a l-hyponormal operator is hyponormal.) …