Results 81 to 90 of about 137 (130)

A comment on coposinormal operators

Le Matematiche, 2013
Hyponormal operators are necessarily posinormal, but they need not be coposinormal.  Coposinormality can nevertheless sometimes be an aid in determining hyponormality.
Henry Crawford Rhaly Jr.
doaj  

On some hyponormal operators [PDF]

Pacific Journal of Mathematics, 1967
openaire   +2 more sources

Norm of a derivation and hyponormal operators

, 2001
Let \(({\mathcal J}, \|\cdot\|_{{\mathcal J}})\) be a two-sided norm ideal in the algebra \({\mathcal L}(H)\) of all bounded linear operators on a complex Hilbert space \(H\). For \(A\in{\mathcal L}(H)\), the inner derivation induced by \(A\) is the operator \(\delta_A\) defined on \({\mathcal L}(H)\) by \(\delta_A(X)= AX-XA\), \(X\in {\mathcal L}(H)\).
Barraa, Mohamed, Boumazgour, Mohamed
openaire   +1 more source

On hyponormal operators [PDF]

Proceedings of the American Mathematical Society, 1966
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Gastric Myoelectrical Activity Subtypes in Functional Dyspepsia and Gastroparesis. [PDF]

J Neurogastroenterol Motil
Ghoshal UC, Mustafa U, Goenka MK, Kothalkar S, Panday V, Panday A.   +5 more
europepmc   +1 more source

Thyroid function test profile in patients who have thyroid nodule and its correlation with ultrasound TIRAD scoring system and cytological results. [PDF]

Sci Rep
Gitti SA, Baha Al-den SS.
europepmc   +1 more source

M-hyponormal operators

Duke Mathematical Journal, 1974
openaire   +3 more sources

The spectra of hyponormal integral operators

Commentarii Mathematici Helvetici, 1971
Putnam, C.R., Clancey, K.F.
openaire   +1 more source

Unbounded inverses of hyponormal operators [PDF]

Pacific Journal of Mathematics, 1970
openaire   +3 more sources

On \(p\)-hyponormal operators

, 1995
CHŌ, MUNEO, JIN, HIROHIKO
openaire   +2 more sources