Compositions of operator ideals and their regular hulls
F. Oertel (1995)
Acta Universitatis Carolinae. Mathematica et Physica
Similarity:
The search session has expired. Please query the service again.
The search session has expired. Please query the service again.
F. Oertel (1995)
Acta Universitatis Carolinae. Mathematica et Physica
Similarity:
F. Oertel (1996)
Acta Universitatis Carolinae. Mathematica et Physica
Similarity:
G. Godefroy, N. Kalton, P. Saphar (1993)
Studia Mathematica
Similarity:
We show that a Banach space with separable dual can be renormed to satisfy hereditarily an “almost” optimal uniform smoothness condition. The optimal condition occurs when the canonical decomposition is unconditional. Motivated by this result, we define a subspace X of a Banach space Y to be an h-ideal (resp. a u-ideal) if there is an hermitian projection P (resp. a projection P with ∥I-2P∥ = 1) on Y* with kernel . We undertake a general study of h-ideals and u-ideals. For example...
Ehrhard Behrends (1988)
Studia Mathematica
Similarity:
F. Oertel (1998)
Czechoslovak Mathematical Journal
Similarity:
In addition to Pisier’s counterexample of a non-accessible maximal Banach ideal, we will give a large class of maximal Banach ideals which are accessible. The first step is implied by the observation that a “good behaviour” of trace duality, which is canonically induced by conjugate operator ideals can be extended to adjoint Banach ideals, if and only if these adjoint ideals satisfy an accessibility condition (theorem 3.1). This observation leads in a natural way to a characterization...