27 citations · 32 across the 7 of their papers we have counts for
4 papers · 1 filter
Harnack and Shmul'yan pre-order relations for Hilbert space contractions
Catalin Badea, Laurian Suciu
We study the behavior of some classes of Hilbert space contractions with respect to Harnack and Shmul'yan pre-orders and the corresponding equivalence relations. We give some condi…
Partial isometries and the conjecture of C. K. Fong and S. K. Tsui
Mostafa Mbekhta, Laurian Suciu
We investigate some bounded linear operators T on a Hilbert space which satisfy the condition |T | less or equal to |ReT |. We describe the maximum invariant subspace for a contrac…
On ergodic operator means in Banach spaces
Alexandru Aleman, Laurian Suciu
We consider a large class of operator means and prove that a number of ergodic theorems, as well as growth estimates known for particular cases, continue to hold in the general con…
Classes of contractions and Harnack domination
Catalin Badea, Laurian Suciu, Dan Timotin
Several properties of the Harnack domination of linear operators acting on Hilbert space with norm less or equal than one are studied. Thus, the maximal elements for this relation…